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== PRELIMINARY EARTHQUAKE REPORT ==
Lamont-Doherty Cooperative Seismographic Network

Version #1: This report supersedes any earlier reports of this event.
This event has been reviewed by a seismologist.

A micro earthquake occurred at 8:32:43 PM (CDT) on Tuesday, October 20, 2009 .
The magnitude 2.9 event occurred 15 km (10 miles) SSW of Altamont, NY .
The hypocentral depth is 7 km ( 4 miles).


Magnitude 2.9 - duration magnitude (Md)
Time Tuesday, October 20, 2009 at 8:32:43 PM (CDT)
Wednesday, October 21, 2009 at 1:32:43 (UTC)
Distance from Altamont, NY - 15 km (10 miles) SSW (202 degrees)
Voorheesville, NY - 17 km (11 miles) WSW (238 degrees)
Schoharie, NY - 20 km (12 miles) ESE (121 degrees)
Chicopee, MA - 132 km (82 miles) WNW (291 degrees)
Coordinates 42 deg. 34.3 min. N (42.572N), 74 deg. 6.2 min. W ( 74.104W)
Depth 6.8 km (4.2 miles)
Quality Fair
Location Quality Parameters Nst= 18, Nph= 36, Dmin=27.7 km, Rmss=0.15 sec, Erho=0.2 km, Erzz=0.8 km, Gp=72 degrees
Event ID# ld1025153
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For more information, see http://www.ldeo.columbia.edu/LCSN

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