Earthquakes and more earthquakes!

As I told you in class, this has been an earth-shattering week, literally.

On Sunday, there was a 7.2 earthquake in Mexico near the California earthquake. Sustained shaking of up to a minute was felt as far away as Los Angeles. Luckily, there were few injuries, but at least 5000 homes were damaged or destroyed.

And on Tuesday, there was a 7.7 earthquake off the coast of Sumatra, Indonesia.

Finally, this week saw some minor earthquakes in Alaska near Mount Redoubt, an active volcano, indicating that magma is pushing upward, and it might soon erupt.

Add these to the Haiti earthquake and the Chile earthquakes, and there have been a LOT of high-magnitude earthquakes so far in 2010. Is this weird? A precursor to 2012?

Um, no. Earthquakes happen all the time, and these earthquakes have all happened on established, major fault lines. On a geologic time scale, there’s nothing unusual at all about these quakes. CNN discusses this in more detail.

Earthquakes are so common that we’re tracking them all the time. The US agency responsible for tracking earthquakes is the United States Geological Survey (USGS). Did you know that if you type “earthquake” into Google, it gives you a listing of some of the recent earthquakes reported by the USGS.

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7 Responses to Earthquakes and more earthquakes!

  1. Harrison says:

    It’s surprising that all of these quakes are not related. At least the daamage was not too great like in Haiti.

  2. Aidan says:

    Its really suprising to me that all of these earthquakes have happened in such little time.

  3. Saheer says:

    WOWOWOWOWOW!!!! This is a wierd week!

  4. Roscoe says:

    Like alot of people are saying, I wonder why all these earthquakes are happening in such a short period of time. I hadn’t heard of them this often before Haiti one which i feel like jumpstarted a chain of earthquakes!

  5. Well, over the past hundred years we haven’t had that many earthquakes, constantly. All of the stress just compacted up and caused many earthquakes. Also, one boundary and stress fault can cause several earthquakes, including aftershocks.

  6. Pingback: Earthquake update | MS Earth Science

  7. Ben says:

    Do we know that these earthquakes aren’t related? couldn’t one trigger a string of them?

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