Showing posts with label 10 most powerful earthquakes. Show all posts
Showing posts with label 10 most powerful earthquakes. Show all posts

Thursday, September 29, 2011

And Then the Ground Opens Up and Swallows You....A Quiz and Invitation

A modest little quiz....

True or False?
  • California is going to fall into the Pacific Ocean
  • The San Andreas fault causes all California earthquakes
  • California has more earthquakes and bigger earthquakes than anywhere else
  • Psychics and animals predict earthquakes
  • The ground opens up and swallows people during earthquakes
  • We in California are waiting for the "BIG ONE"
Want to find out the answers? Geotripper is giving a public presentation at Modesto Junior College this friday on the things we "know" about earthquakes. For those who live outside the region, give yourself the quiz, and I will blog some answers over the weekend. One or two answers might surprise you!

And yes, my students, I will give you extra credit if you take notes!
Comic art provided by Zeo (THANKS!)

Saturday, February 27, 2010

Big Quake in Chile - Upgraded magnitude 8.8


A huge earthquake has struck offshore of Maule, Chile. Initially reported at magnitude 8.3, the quake has been upgraded to 8.8, making it the sixth largest quake recorded in the world since 1900 (if the revision stands). A tsunami warning has been issued, but there are no reports out of the region yet whether it has materialized. Power outages have been reported in Santiago, but no other reports of damage yet. Needless to say, such a quake is capable of doing grevious damage (the energy of this quake is hundreds of times more than the 7.0 quake that hit Haiti six weeks ago).

The top ten most powerful quakes since 1900 (courtesy of the US Geological Survey)

1. Chile 1960 9.5
2. Prince William Sound, Alaska 1964 9.2
3. Off the West Coast of Northern Sumatra 2004 9.1
4. Kamchatka 1952 9.0
5. Off the Coast of Ecuador 1906 8.8
6. Rat Islands, Alaska 1965 8.7
7. Northern Sumatra, Indonesia 2005 8.6
8. Assam - Tibet 1950 8.6
9. Andreanof Islands, Alaska 1957 8.6
10. Southern Sumatra, Indonesia 2007 8.5
11. Banda Sea, Indonesia 1938 8.5
12. Kamchatka 1923 8.5
13. Chile-Argentina Border 1922 8.5
14. Kuril Islands 1963 8.5