USGS Earthquake Notification Service

One of my high school friends asked me via Facebook/Twitter whether I had joined the USGS Earthquake Notification Survey. I think Henry had signed up for it, but I hadn't.

When I looked at the US map of recent earthquakes, when I was checking on the quakes at the Salton Sea, I realized there had been a quake near Trinidad, Colorado. There are extinct volcanoes near Trinidad, plus I've been traveling through Trinidad since I was a kid.

So I went ahead and signed up to get notifications about earthquakes.

Click here: Sign up for the USGS Earthquake Notification Service. if you're interested in getting email or cellphone updates about earthquake activity in the United States.

Earthquakes at the Salton Sea

According to the Los Angeles Times, a cluster of 42 quakes over a 48 hour period began Saturday morning in an area just south of Bombay Beach on the Salton Sea. The magnitude ranged from .05 to 3.3 on the Richter Scale.

From the USGS: Salton Sea earthquake map and Earthquake List shows the activity is ongoing with the highest magnitude a 4.7 quake last night.

A Google search showed a couple of links to a similar swarm of quakes in late August and early September 2005: EarthScope and Andrew's Geology Blog

I suspect I'll be watching that USGS map and list for the next several days.

Interesting that this occurred so close to the Mount Redoubt eruption in Alaska.