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Recent Earthquakes in the Northeastern U.S.

== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, National Earthquake Information Center

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

A light earthquake occurred at 7:12:23 PM (EDT) on Tuesday, October 16, 2012 .
The magnitude 4.0 event occurred 27 km (17 miles) WSW of Portland,ME.
The hypocentral depth is 4 km ( 2 miles).


Magnitude 4.0 - (unknown type)
Time Tuesday, October 16, 2012 at 7:12:23 PM (EDT)
Tuesday, October 16, 2012 at 23:12:23 (UTC)
Distance from Portland,ME - 27 km (17 miles) WSW (258 degrees)
Pease AFB,NH - 59 km (37 miles) NNE (13 degrees)
Laconia,NH - 63 km (39 miles) E (87 degrees)
Coordinates 43 deg. 36.0 min. N (43.600N), 70 deg. 39.0 min. W ( 70.650W)
Depth 3.6 km (2.2 miles)
Quality unknown
Location Quality Parameters Nst=216, Nph=216, Dmin=82.3 km, Rmss=0 sec, Erho=0 km, Erzz=0 km, Gp=46.8 degrees
Event ID# usb000d75b
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