Featured Research

from universities, journals, and other organizations

Large Earthquake Hits Chile, Generates Tsunami Across Pacific

Date:
February 27, 2010
Source:
U.S. Geological Survey/Earthquake Hazards Program
Summary:
An 8.8 magnitude earthquake struck off the coast of central Chile early morning on Saturday, February 27, 2010, about 200 miles southwest of the Chilean capital of Santiago, killing several hundred people and exposing millions of people to strong shaking that toppled many buildings. In addition, a tsunami triggered by the earthquake reverberated through the entire Pacific Ocean.

Shakemap of the Feb. 27, 2010 earthquake that struck off the coast of Chile.
Credit: Image courtesy of USGS

An 8.8 magnitude earthquake struck off the coast of central Chile early morning on Saturday, February 27, 2010 at 3:34 a.m. local time, about 200 miles southwest of the Chilean capital of Santiago, killing several hundred people and exposing millions of people to strong shaking that toppled many buildings.

Related Articles


Tsunami warnings were issued for Hawaii, as well as Australia, New Zealand, Indonesia, Japan, and other countries along the Pacific coastline, as the giant waves triggered by the earthquake reverberated through the entire ocean.

This earthquake occurred at the boundary between the Nazca and South American tectonic plates. The two plates are converging at a rate of 80 mm per year. The earthquake occurred as thrust-faulting on the interface between the two plates, with the Nazca plate moving down and landward below the South American plate.

Coastal Chile has a history of very large earthquakes. Since 1973, there have been 13 events of magnitude 7.0 or greater. The February 27 shock originated about 230 km north of the source region of the magnitude 9.5 earthquake of May, 1960 -- the largest earthquake worldwide in the last 200 years or more. This giant earthquake spawned a tsunami that engulfed the Pacific Ocean. An estimated 1600 lives were lost to the 1960 earthquake and tsunami in Chile, and the 1960 tsunami took another 200 lives among Japan, Hawaii, and the Philippines.

Approximately 870 km to the north of the February 27 earthquake is the source region of the magnitude 8.5 earthquake of November, 1922. This great quake significantly impacted central Chile, killing several hundred people and causing severe property damage. The 1922 quake generated a 9-meter local tsunami that inundated the Chile coast near the town of Coquimbo; the tsunami also crossed the Pacific, washing away boats in Hilo harbor, Hawaii.

The magnitude 8.8 earthquake of February 27, 2010 ruptured the portion of the South American subduction zone separating these two massive historical earthquakes.

A large vigorous aftershock sequence can be expected from this earthquake.


Story Source:

The above story is based on materials provided by U.S. Geological Survey/Earthquake Hazards Program. Note: Materials may be edited for content and length.


Cite This Page:

U.S. Geological Survey/Earthquake Hazards Program. "Large Earthquake Hits Chile, Generates Tsunami Across Pacific." ScienceDaily. ScienceDaily, 27 February 2010. <www.sciencedaily.com/releases/2010/02/100227210429.htm>.
U.S. Geological Survey/Earthquake Hazards Program. (2010, February 27). Large Earthquake Hits Chile, Generates Tsunami Across Pacific. ScienceDaily. Retrieved October 24, 2014 from www.sciencedaily.com/releases/2010/02/100227210429.htm
U.S. Geological Survey/Earthquake Hazards Program. "Large Earthquake Hits Chile, Generates Tsunami Across Pacific." ScienceDaily. www.sciencedaily.com/releases/2010/02/100227210429.htm (accessed October 24, 2014).

Share This



More Earth & Climate News

Friday, October 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Dances With Wolves in China's Wild West

Dances With Wolves in China's Wild West

AFP (Oct. 23, 2014) One man is on a mission to boost the population of wolves in China's violence-wracked far west. The animal - symbol of the Uighur minority there - is under threat with a massive human resettlement program in the region. Duration: 00:41 Video provided by AFP
Powered by NewsLook.com
San Diego Zoo's White Rhinos Provide Hope for the Critically Endangered Species

San Diego Zoo's White Rhinos Provide Hope for the Critically Endangered Species

Reuters - Light News Video Online (Oct. 22, 2014) The pair of rare white northern rhinos bring hope for their species as only six remain in the world. Elly Park reports. Video provided by Reuters
Powered by NewsLook.com
Trick-or-Treating Banned Because of Polar Bears

Trick-or-Treating Banned Because of Polar Bears

Buzz60 (Oct. 21, 2014) Mother Nature is pulling a trick on the kids of Arviat, Canada. As Mara Montalbano (@maramontalbano) tells us, the effects of global warming caused the town to ban trick-or-treating this Halloween. Video provided by Buzz60
Powered by NewsLook.com
Traditional Farming Methods Gaining Ground in Mali

Traditional Farming Methods Gaining Ground in Mali

AFP (Oct. 20, 2014) He is leading a one man agricultural revolution in Mali - Oumar Diatabe uses traditional farming methods to get the most out of his land and is teaching others across the country how to do the same. Duration: 01:44 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins