Wednesday, August 24, 2005

I feel the earth move!

How nerdy can this be? I was blogging when a very small, but seemingly rare earthquake rumbled through my neighborhood. My feet firmly planted on the floor, I felt a sustained vibration of the house with windows and pictures rattling. Nothing fell. Nothing broke. It was a very unusual experience, however. I reported my very unscientific observations to the Seismology guys as the US Geological Survey Earthquake Hazards program.

The official USGS report on event "usceaf"
A minor earthquake occurred at 03:09:41 (UTC) on Thursday, August 25, 2005. The magnitude 3.8 event has been located in NORTH CAROLINA. (This event has been reviewed by a seismologist.)

Magnitude 3.8

Date-Time
Thursday, August 25, 2005 at 03:09:41 (UTC) = Coordinated Universal Time
Wednesday, August 24, 2005 at 11:09:41 PM = local time at epicenter

Location
35.878N, 82.797W
Depth 5 km (3.1 miles) set by location program
Region NORTH CAROLINA

Distances
* 4 km (2 miles) ESE (122) from Hot Springs, NC
* 14 km (9 miles) NW (308) from Marshall, NC
* 23 km (14 miles) WNW (284) from Mars Hill, NC
* 40 km (25 miles) NNW (327) from Asheville, NC
* 104 km (64 miles) E (95) from Knoxville, TN
* 564 km (350 miles) SSW (207) from Pittsburgh, PA

Location Uncertainty
horizontal +/- 7.8 km (4.8 miles); depth fixed by location program

Parameters
Nst= 28, Nph= 28, Dmin=100.1 km, Rmss=1.42 sec, Gp= 79,
M-type="Nuttli" surface wave magnitude (MLg), Version=6

Source USGS NEIC (WDCS-D)

Event ID usceaf


qv: USGS Event Link



2 Comments:

At 3:05 AM, Brad Alexander said...

Earthquakes can be scary, or fun. I guess it depends on your sense of adventure.

We had a 3.8 centered about 7 miles from my house earlier this year. But of course I'm in California.

Anyhow, earthquakes are one of my many hobbies. I have created a special report about your quake. You might be interested in the maps showing the location of this quake and previous quakes.

http://alpineequakes.blogspot.com/

 
At 10:37 AM, Phil Yanov said...

Thanks. Your report made for interesting reading.

 

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