Earthquake Recap: Upward of 10 Quakes Hit Santa Clara County

Multiple earthquakes hit Los Altos, Gilroy and Morgan Hill from April 2 to 6.


Thirteen earthquakes, averaging a magnitude of 1.9 on the Richter scale, struck Santa Clara County this week.

The largest quake, with a magnitude of 2.9, occurred just nine miles north of Morgan Hill at 2:42 a.m. Thursday, according to the U.S. Geological Survey website.

Three tremors rocked the county on Friday alone, with a 1.8 magnitude quake striking three miles south of Los Altos and 20 minutes from Campbell at 5:11 p.m. A slightly smaller quake, registering at 1.5, hit three miles from Los Altos the day before at 11:59 a.m.

Multiple tremors shook the South County area, especially in Gilroy and Morgan Hill. In Gilroy, a 1.8 magnitude quake hit four miles south of the Garlic Capital at 4:08 p.m. Thursday, and three more hit Gilroy Wednesday.

The first struck a few miles from Gilroy at 2:29 a.m. with a magnitude of 2.0. The second, a 1.2, hit three miles away at 4:28 p.m. and another 2.0 quake hit the Garlic City about 10 minutes later in the same area.

On Tuesday, a 1.2 magnitude quake hit five miles from San Martin at 7:19 p.m., along with additional smaller quakes striking near the same area. To view the quakes that sent trembles through the county in the earlier portion of the week, view the UGSG earthquake list.

valerie marinovich April 07, 2012 at 03:07 PM
I would have enjoyed a bit more background about this. Maybe brought the USGS into it.
Corinne Speckert April 07, 2012 at 06:18 PM
That's a great suggestion, Valerie. I'm going to start doing these earthquake recaps on a regular basis. I'll try to contact someone from the USGS for the next one, and maybe I'll be able to get some additional details for this recap at that time, too. Thanks again :)
Brian April 09, 2012 at 06:48 PM
We haven't had a decent sized earthquake in a looong while! '89 really did a number on Gilroy, especially downtown!
Brian April 09, 2012 at 09:10 PM
This is the first place I go, as soon as I feel anything. Even seconds after a quake, Info will be auto posted by a computer, then within minutes somebody from the USGS will have more info. It's pretty slick, come to think of it, I wonder if there is an app for that? Anyways, here's the link! (On the same USGS website that is posted in the article) http://earthquake.usgs.gov/earthquakes/recenteqscanv/


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