Volcanos / Plate Tectonics
Smithsonian / USGS Weekly Volcanic Activity
"10,000 years of volcanic activity at your fingertips"
LAVA LIGHTS vs. NORTHERN LIGHTS: Iceland's largest volcano is restless. The Bardarbunga volcano system, located under the massive Vatnajoekull glacier, has been rocked by hundreds of tremors daily since mid-August. Lava is currently spewing from fissures, prompting fears of a much larger eruption. Local photographers, meanwhile, are having a great time recording a rare mix of lava-red and aurora-green in the night sky:
Thorsten Boeckel sends this photo from Mývatn, Iceland. "The red shine of the fissure eruption together with the green aurora provided a phantastic view," he says.
A full-fledged eruption of this volcano has the potential to be even more disruptive than the 2010 eruption of nearby Eyjafjallajokull, which threw air traffic into chaos across Europe. According to the Icelandic Met Office, there are no signs of decreasing magma output as of Sept. 17th. This means more lava is in the offing--along with more phantastic photo-ops as aurora season unfolds around the Arctic Circle. Stay tuned to the photo gallery for visual updates. Aurora alerts: text, voice
The Weekly Volcanic Activity Report is a cooperative project between the Smithsonian's Global Volcanism Program and the US Geological Survey's Volcano Hazards Program. Updated by 2300 UTC every Wednesday, notices of volcanic activity posted on these pages are preliminary and subject to change as events are studied in more detail. This is not a comprehensive list of all of Earth's volcanoes erupting during the week, but rather a summary of activity at volcanoes that meet criteria discussed in detail in the "Criteria and Disclaimers" section. Carefully reviewed, detailed reports on various volcanoes are published monthly in the Bulletin of the Global Volcanism Network.
Name Location Activity
Chirpoi Kuril Islands (Russia) New
Etna Sicily (Italy) New
Fogo Cape Verde New
Hunga Tonga-Hunga Ha'apai Tonga Islands New
Klyuchevskoy Central Kamchatka (Russia) New
Soputan Sulawesi (Indonesia) New
Tangkubanparahu Western Java (Indonesia) New
Aira Kyushu (Japan) Ongoing
Bardarbunga Iceland Ongoing
Chirinkotan Kuril Islands (Russia) Ongoing
Kilauea Hawaiian Islands (USA) Ongoing
Popocatepetl Mexico Ongoing
Sheveluch Central Kamchatka (Russia) Ongoing
Shishaldin Fox Islands (USA) Ongoing
Sinabung Indonesia Ongoing
Slamet Central Java (Indonesia) Ongoing
Suwanosejima Ryukyu Islands (Japan) Ongoing
Zhupanovsky Eastern Kamchatka (Russia) Ongoing
I say Mt Redoubt ready to blow big time soon Check EQs happing now and recent past building to blow TOP.
posted 8/27/2014 8:32pm PST K.Walker
Latest volcano news:
GeoNet issued a new bulletin about unusual seismic activity at White Island, but mentions that there is no current eruption:
"Over the past few weeks White Island has repeatedly produced very small volcanic earthquakes. These small tremor bursts are occurring like clockwork, approximately every 70 seconds, creating a unique pattern on our earthquake drum, with hundreds of these small bursts recorded every day
Worldwide Volcano News and Updates: Current Erupting Volcanoes/Maps,Webcams/Seismic Recordings and More
Volcano Updates from John Seach www.volcanolive.com
Wrightwood / Mt High Live Web Cams
Located in the center of town, see what is going on in Wrightwood CA from the comfort of your computer at home or anywhere. Our Live Wrightwood Webcam is placed to allow everyone the best views of Wrightwood so you always feel like you are in town, never missing out on anything. http://www.wrightwoodca.com/wrightwood/live-cameras.php
This page is updated on Wednesdays. Please see the GVP Home Page for news of the latest significant activity.
Science In Your Backyard: "California" News Releases of Interest for California:
California Real-Time Information:
- Real-time water information
- Real-time tracking of changes to rivers and streams within this location
- Real-time tracking of flood conditions within the State
- Real-time tracking of drought information within this location
- Real-time monitoring of the effects of droughts and other climate variability on ground-water levels.
- Current volcanic activity from the Cascades Volcano Observatory.
- Current volcanic activity from the Long Valley Volcano Observatory.
- Real-time and historical earthquake information
- Real-time monitoring of selected landslides and hillsides.
Interactive Maps and Volcano CamsBelow: The Ring of Fire is a zone of frequent earthquakes and volcanic eruptions that encircles the basin of the Pacific Ocean. It is shaped like a horseshoe and it is 40,000 km long. It is associated with a nearly continuous series of oceanic trenches, island arcs, and volcanic mountain ranges and/or plate movements. It is sometimes called the circum-Pacific belt or the circum-Pacific seismic belt. (click image for more info)
Website updated/owned and maintained daily by K. Walker Contact: email email@example.com
Ring of Fire and World Techtonic Plates. Click Image for Information and list of great related links.
Click on Image Takes you to: Smithsonian Institution National Museum of Natural History New Global Volcanism Program Website!
ABOVE: "10,000 years of volcanic activity at your fingertips" Smithsonian Institution
National Museum of Natural History
New Global Volcanism Program Website!
May 20, 2013
U.S. Volcanoes and Current Activity Alerts:
Click Image below... static Webcam image... Auto Updates every 30 seconds
Above: Please Note: As of 12/12/10 Ol
Old Faithful Live Streaming Web Video Camera :
Switched to Adobe Flash media player in an effort to make the stream more accessible. Tests and tweaking are ongoing, but the stream should be viewable most of the time from either. Keep an eye here and see if Old Faithfull reacts to earthquake swarms in the park! Check archives data for times, intervals, locations. See any trends?
A high bandwidth connection and the free Adobe Flash player are recommended. Initial loading times will vary based on the speed of your internet connection. Please be patient. Other upgrades to network cabling and connections are also planned, and should help keep the camera feed more stable in the future. http://www.nps.gov/features/yell/live/oflive.htm
Recent Helicorder Displays
Visit the Geyser Observation and Study Association (a non-governmental site) for a recent summary of geyser activity in the Old Faithful area.
All the Webcams are available at http://www.nps.gov/yell/photosmultimedia/webcams.htm. They do not have control or input into other websites that choose to display their content.
BELOW: Special Map Yellowstone Recent Earthquake Activity...Is the activity volcanic in nature?
"NEW" Recent Earthquake Activity in Yellowstone National Park (Special Map)
Yellowstone National Park Special Map:
University of Utah Seismograph Stations Recent Activity Map
Geyser Research and Information:
THE GEYSER OBSEVATION AND STUDY ASSOCIATION
Electronically Recorded Geyser Activity Compiled by Ralph Taylor
Below: Mt. Redoubt Alaska webcam
Volcano Activity of Alaska and Aleutian Islands
Cleveland Volcano webcam: http://www.avo.alaska.edu/webcam/Cleveland.php
Mt. Redoubt webcam: http://www.avo.alaska.edu/webcam/Redoubt_-_Hut.php
18 Other AVO Webcams: http://www.avo.alaska.edu/webcam/index.php
Click this link, takes you to USGS Volcanoe cams around the world! http://vulcan.wr.usgs.gov/Photo/volcano_cams.html
Have fun and enjoy!! Updated: 04/2012
"NEW" Tokyo: Latest Volcanic Ash Advisory Center (VAAC) within 24 hours
SI / USGS Weekly Volcanic Activity Report: 07/01/2011
CVGHM reported that during June diffuse white plumes from Soputan rose 25-150 m. During 21 June-2 July seismicity increased, and on 2 July the Alert Level was raised to 3. Residents were discouraged from going within a 6-km radius of the crater and climbing the volcano was prohibited. According to news articles, a Strombolian eruption that began on 3 July produced an ash plume that rose 6 km and drifted W. Ashfall impacted villages, trees, and vegetation downwind.
New Zealand's volcanoes, their most recent activity, and how we monitor them. http://www.geonet.org.nz/volcano/index.htmlNEW VIDEO: Spectacular Explosive Eruptions at Anak Krakatau (Krakatoa) Volcano, Indonesia 1st Nov. 2010
Interactive Map of Volcanoes Discussed this Last Week:
Tokyo: Latest Volcanic Ash Advisory Center (VAAC) within 24 hours
Volcano Updates credit John Seach Data
Earth Resources Observation and Science
Providing science and imagery to better understand our Earth.
Landsat Data Illustrate Ancient Sites. Here: http://eros.usgs.gov/
Volcanoes of Papa New Guinea- John Seach: http://volcanolive.com/png.html
Natural Hazards - Volcanoes: http://www.usgs.gov/natural_hazards/
USGS Volcano Hazards Program: http://volcanoes.usgs.gov/
Frequently Asked Questions About Eruption Precursors:
Q: What kinds of unusual activity might be noticed before an eruption?
Before a volcano erupts, magma must force its way upward through solid rock beneath a restless volcano. This process causes the ground above to heave and shake as rock is shoved aside or broken. At the same time, gases are released from the magma as it rises to shallower levels where the pressure is lower. These phenomena--ground movements, earthquakes, and changes in volcanic gases--provide the clues that scientists use to recognize a restless volcano and anticipate what might happen next.
•Cascades Volcano Observatory: http://vulcan.wr.usgs.gov/
•Long Valley Observatory: http://volcanoes.usgs.gov/lvo/
•National Volcano Early Warning System (NVEWS) http://pubs.usgs.gov/fs/2006/3142/
•U.S. Geological Survey's Alert Notification System for Volcanic Activity: http://pubs.usgs.gov/fs/2006/3139/
•UNAVCO Plate Boundary Observatory
QUCIK LINKS FOR RESEARCH
Check out "European-Mediterranean Seismological Center and World Wide Earthquakes". Bottom of Page, Once there check Maps tab and get 3D interactive map and walk a fault line or fly over a volcano as if you were there! See exactly where an earthquake event took place and visit the site!
The Pacific Northwest Seismic Network
New Tsunami Training Modules Completed:
The COMET Meteorology Education Program has developed three on-line training modules describing Tsunami Warning Systems, Tsunami Science and Community Tsunami Preparedness. The Tsunami Warning System module, which can be completed in approximately 1 to 3 hours, describes the processes involved in anticipating, detecting, and warning for a tsunami by summarizing data collection, modeling, analysis, and alert procedures used at NOAA's Tsunami Warning Centers. The Tsunami Science module, entitled Tsunamis, delves into the science behind tsunami generation, propagation, and inundation. The Community Preparedness module describes proper preparations for a tsunami.
These fully narrated modules contain numerous graphical data products and photographs, as well as a companion print version. The intended audience includes Weather Forecast Office staff and emergency managers who require a better understanding of the technical aspects of tsunami warning delivery and tsunami science. The content is also appropriate for anyone wanting to learn more about tsunamis, preparedness, and the components of tsunami warning systems. To access this training, please follow these links:
All about earthquakes and geologic hazards of the Pacific Northwest:
Massive Network List and Links:
Seismosurfing the Internet for Earthquake Data Worldwide - Expanded Version
Web connections to original seismic data or seismic research information.
Global or composite earthquake information, research or special services Here:
NOAA's National Weather Service West Coast and Alaska Tsunami Warning Center
Visit Volcano Live - John Seach @ www.volcanolive.com
View John Seach Videos Here:
USGS Volcano Hazards Program Feeds
Tokyo: Latest Volcanic Ash Advisory Center (VAAC) within 24 hours
The Weekly Volcanic Activity Report is a cooperative project between the Smithsonian's Global Volcanism Program and the US Geological Survey's Volcano Hazards Program. Updated by 2300 UTC every Wednesday, notices of volcanic activity posted on these pages are preliminary and subject to change as events are studied in more detail.
Is Mount Rainier Next to Erupt? Soon...Click Image for Rainier Web Cam or Link Below for Many More Cams. Experts are More Worried of Landslides Creating Lahars.
Volcanic "Vents" Program Exploring Deep Ocean Ecosystems:
Research Groups: http://www.pmel.noaa.gov/vents/groups.html
The Acoustic Monitoring Project of the VENTS Program has performed continuous monitoring of ocean noise since August, 1991 using the U.S. Navy SOund SUrveillance System (SOSUS) network and autonomous underwater hydrophones.
Vents Program Expeditions and Research Sites
"VENTS" conducts research on the impacts and consequences of submarine volcanism and hydrothermal venting on the global ocean and deep-sea ecosystems. This research includes exploration, time-series observations, remote monitoring, and innovative instrumentation and aims to provide timely information to the scientific community and the general public via peer-reviewed scientific publications and internet-accessible data and educational products. Go here to get latest information and tools for research.
Watch the History Channel! "American Volcano" Volcano Experts prepare for possible eruption of Mount Rainer. Keep tabs on what is going on at Mount Rainier, Check Volcano Page Often, Watch for Earthquakes and Staus Information.
CLICK HERE FOR A TON OF WEBCAMS:
WEBCAMS OFFLINE AT TIMES DUE TO ERUPTION...TRAFFIC HEAVEY AT TIMES EXPECT SLOW RESPONSE...
ABOVE: Webcam Mount Merapi, Indonesia: View of Mount Merapi (A live view of the current weather at Mount Merapi) Some Cams auto reload every 5 seconds
Merapi (Indonesia) Live WebCam Current Activity...Click Image above or follow this link:
2nd Cam here: http://merapi.bgl.esdm.go.id/view-r.php?id=68&708
ATTENTION: QUICK LINK TO EARTHQUAKE PAGE click this text! Opens in same window
Volcanoes of Hawaii from Volcano Live (John Seach Site)http://www.volcanolive.com/hawaii.html
Click on Images BELOW for webcams Remember it maybe evening for some cams
Mt. Saint Helens Webcams "click Image" or
Try these links:
The Pacific Northwest Seismic Network
HOME | Latest Quakes | Volcanoes | Catalogs & Data | Hazards & Preparation | Research | Outreach & Education | Operations & Projects
INTERACTIVE WEBICORDERS (New Style)
Old Style Here: http://old.pnsn.org/WEBICORDER/PNSN/welcome.html
Picturesque view of Halema`uma`u crater, NEW...Fissure Cams Included... Click Image
ABOVE: Click Image Live Panorama of Halemaʻumaʻu from HVO, Kîlauea Volcano
"New"Click this link for Your choice of 14 different Hawaiian webcams Including Mobil Cams :
"New" USGS Hawaiian Volcano Observatory Recent
Earthquake Activity, Webcams, Deformation Data, Webicorders
(Generate Your Own Cross-Sectional Plots)
Recent Kilauea Status Reports, Updates, and Information Releases:
HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE
Mt. Fuji (Japan) Click on Image for Webcam View...
Above: Click Image This screen is taken from http://live-fuji.jp/fuji/livee.htm (Nishiura, Numazu-city, Shizuoka pref.) Japan "Webcam"
Below: White Island Volcano, New Zealand
Click on image above takes you to New Zealand geonet.org for a map of volcanoes, locations, and web cams. Great site, tons of information.
SERNAGEOMIN now has a webcam monitoring the recently-active Planchón-Peteroa volcano on the Chile/Argentina border. The camera can be accessed via the OVDAS main page (the link is on the left, at the bottom), or by means of this direct link. Thanks to commenter Rubén for this tip. I'm checking for better connections before adding cam here...
You may want to download a translater "pics don't need it, but you might want to surf the sites" (Google has a nice one)
Geology and tectonics of Þingvellir:
The Þingvellir area is a part of the North Atlantic rift system, almost entirely nested within the Reykjaneshryggur-Langjökull rift system. It can be described as an area of sea-floor spreading, displaying the close association of crustal rifting and volcanism. Þingvellir and the Great Rift Valley of Eastern Africa are the only sites on Earth where the effects of two major plates drifting apart can be observed. Great site lots of information and photos.
(Professor Ólafur Ingólfsson)
Professor of glacial and Quaternary Geology
University of Iceland
Department of Geology and Geography and
Institute of Earth Sciences
Mila Live from Iceland "Up to 14 Webcams"
Iceland is a volcanic island located in the North Atlantic Ocean, 300 km east of Greenland and 900 km west of Norway. The main island, which lies south of the Arctic Circle, covers an area of 103,000 km, which is roughly the size of the U.S. state of Virginia or slightly bigger than Ireland. Over 10 percent of Iceland’s territory is covered by glaciers, which includes Vatnajökull, the largest glacier in Europe. Due to its volcanic origin, the country’s nature features gushing geysers, natural hot springs, as well as lava fields spreading as far as the eye can see. The volcanic activity of Iceland made international headlines in recent years with the eruption of Eyjafjallajökull volcano in 2010 and the Grimsvötn eruption in 2011. Iceland’s numerous rivers and waterfalls are harnessed to provide cheap and environment-friendly hydroelectric energy. Founded in 2007, Míla is the hub of most telecommunications in Iceland, connecting individuals and companies not only within the country, but also with the rest of the world.
WebCams Galore "Iceland"
Geysir: Webcam "There she blows" "at times on again/off again"
One of the greatest natural attractions of Iceland, The Great Geysir, or Stori-Geysir, has been dormant since 1916 when it suddenly ceased to spout. It came to life only once in 1935, and as quickly went back to sleep. Since then its repose has sporadically been disturbed by the dumping of tonnes of carbolic soap powder into its seething orifice in order to tickle it to spout. It is not exactly known when Geysir was created. It is believed that it came into existence around the end of the 13th century when a series of strong earthquakes, accompanied by a devastating eruption of Mt. Hekla, hit Haukadalur, the geothermal valley where Geysir is located.
Gullfoss may be Iceland's most popular waterfall, and we can certainly testify to that statement. In a land of Earthly beauty, one natural wonder stands above the rest, Iceland’s beloved Gullfoss, or “Golden Falls.” With a 105-foot double-cascade, Gullfoss is by far Europe’s most powerful waterfall. On a sunlit day, the mist clouds surrounding the hammering falls are filled with dozens of rainbows
Austurvollur: Webcam"live"only a few hours of daylight check back often...Austurvöllur, Iceland a square in old town Reykjavik surrounded by the Parliament Building, the city's oldest church Domkirkja, the Hotel Borg, and the dance club NASA.
http://live.mila.is/austurvollur/ (Austurvollur cam)
Blue Lagoon: Webcam "live" in daylight hours when open for business watch everyone come and go..The Blue Lagoon The heart of Blue Lagoon's operation is at the Blue Lagoon, Iceland's most unique and popular attraction. Guests enjoy bathing and relaxing in Blue Lagoon geothermal seawater, known for its positive effects on the skin. .
http://live.mila.is/lonid/ (Blue Lagoon cam)
Pond: Webcam 'live" pond wildlife, traffic...foot and cars...The Reykjavík pond, Tjörnin, is right in the city center, by the City hall and stretches from Lækjargata to Hringbraut and Tjarnargata. It is divided in two by a bridge.
http://live.mila.is/tjornin/ (Pond cam)
Lake: Webcam "live" Watch ice flow direction, check the size of any cars or people in the live cam, once you see cars and people you get a perspective on how massive the ice is and the size of the area you see in the live feed. Makes you feel small. Jokulsarlon glacier lagoon is one of Icelands most spectacular sights, located about 60 km east of Skaftafell National Park and almost 400 km from Reykjavik. Jokulsarlon borders south and east part Iceland, at the roots of Europe's largest glacier Vatnajokull. Breidamerkurjokull, an outlet glacier of the great glacier Vatnajokull, crumbles down the steep mountainside of the glacier and big icebergs break off into the lagoon where they float around before melting. This is a very popular sightseeing attraction, widely regarded as the most picturesque scenery in all of south Iceland. "Your house would probably fit on the smallest iceberg you see" and those little dots out on the bluff? are people! When Vatnajokull, Europes largest glacier, began it´s retreat from the shore of south Iceland around 1950, it left behind a lagoon around 100 meters deep, filled with cold meltwater and huge icebergs that head out to the sea.
http://live.mila.is/jokulsarlon/ (Lake cam)
July 07, 2011 Hekla Showing signs of Unrest...! Magma movement...?
Iceland's Katla and Hekla Volcano Webcams: "live"
Shallow earthquake swarm under Katla's southern caldera continues
The earthquake swarm under the southern part of the icecap of Katla volcano that had started on 5 June continues with 30 more quakes recorded during the past 48 hours.
The quakes are mostly very small, but a few were between magnitude 2 and 3, and most are located at shallow depths of less than 5 km.
Keep an eye on Katla! Whenever Eyjafjallajokull erupts Katla won't be far behind...History shows this relationship..look at the data and see if you can guess when this might happen... 9/1/11 Earthquake swarm reported...near Katla...won't be long!!
Mount Etna Cams click this text link. auto updates every 10 seconds, 6 different views, may need compatibility mode under Tools for newer Internet Explorer 8 and 9.
Stromboli Cam click this text link. auto updates every 10 seconds, 6 different views, may need compatibility mode under Tools for newer Internet Explorer 8 and 9.
Puyehue-Cordon volcanic complex Caulle
CHILE WEBCAMS: not working at times...07/25/12
Sakura-jima Volcano Interactive Camera (Japan) U-Control Camera.
ABOVE: Sakura-jima Volcano Interactive Camera (Japan) U-Control Camera Position and Zoom.Helpfull Research Links Costa Rica:
Volcanological and Seismological Observatory of Costa Rica:
"Translator Helpful Here"
"VSOCR" Is an interdisciplinary research institute of the National University.
Recent Helicorder Displays Turrialba Volcano:
GET GOOGLE TRANSLATOR:
"NEW" Tokyo: Latest Volcanic Ash Advisory Center (VAAC) within 24 hours
Glad to see you, thanks for visiting and hope to see you again!
What to do when ...
What to do before a volcanic eruption?
Volcanic hazards can affect you. There are delimited areas of high, medium and low risk.
Know evacuation routes and have provision for temporary stay in the house of a relative
or friend not living in the danger zone. Do know your family this meeting place. If there is the possibility
of an eruption occurs and you see hit, probably the only preventive measure is proper evacuation.
Check out the measures of the contingency plan in your area.
Have on hand your valuable documents (ID, title, booklets, etc.).
If you're sick in your family, report prior to your authorities to secure their transportation
in case of an evacuation. You have to be attentive to the alarms (sirens, bells, whistles, horns, etc.).
They can let you know that the rash may occur.
Keep stored water and nonperishable food to dispose of them at the time
of a possible evacuation. Covering water containers to prevent contamination of ashes and gases.
If you have animals bookable grass, water and other food and prevents consume if they are
contaminated with ash.
Keep a first aid kit, a battery-powered radio, flashlight in good condition and spare batteries.
Ponte alert to instructions to give the authorities pay no attention to rumors.
What to do during a volcanic eruption?
Above all stay calm, panic can produce more victims than the natural phenomenon.
Quickly meets your family, especially children and the elderly, who are most vulnerable at this time.
The most important thing is your life, take only your personal belongings.
Shut off water and gas, turn off the light and make sure to lock doors and windows.
Meets the agreed plans.
Keep the radio on to receive the information communicated by authorities.
If you're out and not try to enter the danger area, navigate to locations away from the volcano.
Stay away from river valleys where they will lower flows of ash and hot rocks, lava,
mud and exhaust gas. Try not to be near areas that have experienced landslides.
If the ash begins to fall put into practice the following recommendations:
Find shelter indoors and stay there until the phenomenon has passed.
Breathe through a cloth moistened with water or vinegar, this will prevent the passage
of gases and volcanic dust.
Protect your eyes closed as much as possible.
Put on a hat and heavy clothing.
In case of heavy ashfall not use the vehicle.
The only protection against the rain of ash and volcanic material of considerable
size are shelters and reinforced roofs.
Given that the explosions of the volcano can cause air waves or shock that can break the
glass windows, placed tapes in the form of X, and ultimately put tables to prevent the violent
overthrow of them.
if you were evacuated and you're in a shelter, stay calm, get food, medical care, etc.
And you can participate in the work of maintenance.
What to do after a volcanic eruption?
Remain in the safe place until you inform the authorities that has become normal. Do not try to return before your home!.
Keep in tune your radio for instructions.
Before entering your house review which has not been weakened by the eruption.
Avoid use of telephone lines, roads, transport, medical and hospital services unless absolutely necessary. Many people may need them with real urgency.
Eliminates the accumulation of volcanic material falling on the roofs because the weight they can collapse. This risk increases if there are rains because water increases the weight of the materials on the roof (one cubic meter of wet ash can weigh over a ton).
Collaborate with the tasks of care and emergency recovery.
Do not eat or drink any food you suspect is contaminated.
Extracted from the brochure What to do if a volcanic eruption?. Authors: Breton, M., Arellano, A., Tellez, A. and Navarro, C. Trust Ramon Alvarez Buylla de Aldana. Universidad de Colima, 2002.
© Copyright 2006, University of Colima.
Website developed by the General Directorate of Telematic Services # 333 University Ave. Colony of snakes. CP 28040. Colima, Colima, Mexico.
Tel (+52) 312 31 6 10 00.
Is Recent Earthquake Activity Unusual? Scientists Say No.
Released: 4/14/2010 2:55:24 PM
U.S. Department of the Interior, U.S. Geological Survey
Office of Communication
119 National Center
Reston, VA 20192 Dr. Michael Blanpied
Clarice Nassif Ransom
China’s tragic magnitude 6.9 earthquake on April 13 and the recent devastating earthquakes in Haiti, Chile, Mexico, and elsewhere have many wondering if this earthquake activity is unusual.
Scientists say 2010 is not showing signs of unusually high earthquake activity. Since 1900, an average of 16 magnitude 7 or greater earthquakes — the size that seismologists define as major — have occurred worldwide each year. Some years have had as few as 6, as in 1986 and 1989, while 1943 had 32, with considerable variability from year to year.
With six major earthquakes striking in the first four months of this year, 2010 is well within the normal range. Furthermore, from April 15, 2009, to April 14, 2010, there have been 18 major earthquakes, a number also well within the expected variation.
“While the number of earthquakes is within the normal range, this does not diminish the fact that there has been extreme devastation and loss of life in heavily populated areas,” said USGS Associate Coordinator for Earthquake Hazards Dr. Michael Blanpied.
What will happen next? Aftershocks will continue in the regions around each of this year’s major earthquakes sites. It is unlikely that any of these aftershocks will be larger than the earthquakes experienced so far, but structures damaged in the previous events could be further damaged and should be treated with caution. Beyond the ongoing aftershock sequences, earthquakes in recent months have not raised the likelihood of future major earthquakes; that likelihood has not decreased, either. Large earthquakes will continue to occur just as they have in the past.
Though the recent earthquakes are not unusual, they are a stark reminder that earthquakes can produce disasters when they strike populated areas — especially areas where the buildings have not been designed to withstand strong shaking. What can you do to prepare? Scientists cannot predict the timing of specific earthquakes. However, families and communities can improve their safety and reduce their losses by taking actions to make their homes, places of work, schools and businesses as earthquake-safe as possible. The USGS provides information on how you can prepare at the Earthquake Hazards Program Web site.
USGS provides science for a changing world. For more information, visit www.usgs.gov.
Subscribe to USGS News Releases via our electronic mailing list or RSS feed.
**** www.usgs.gov ****
Links and contacts within this release are valid at the time of publication. Released: 11/20/2010 2:55:24 PM
Having Troubles? Or comments? Leave a message in the Comments Section...I check, Test, Update this site everyday! But still may miss things. Thanks, Ken.
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