Recent Earthquakes in the Northeastern U.S.
== PRELIMINARY EARTHQUAKE REPORT ==Lamont-Doherty Cooperative Seismographic Network (LCSN)
Version #1: This report supersedes any earlier reports of this event.
This event has been reviewed by a seismologist.
A micro earthquake occurred at 1:34:02 AM (EDT) on Monday, May 11, 2009
.
The magnitude 1.2 event occurred 17 km (10 miles) SW of Harrisburg,PA.
The hypocentral depth is 1 km ( 1 mile).
| Magnitude | 1.2 - duration magnitude (Md) |
|---|---|
| Time | Monday, May 11, 2009 at 1:34:02 AM (EDT)
Monday, May 11, 2009 at 5:34:02 (UTC) |
| Distance from | Harrisburg,PA - 17 km (10 miles) SW (217 degrees) Middletown,PA - 20 km (13 miles) WSW (237 degrees) Harrisburg,PA - 49 km (30 miles) SE (128 degrees) |
| Coordinates | 40 deg. 5.9 min. N (40.099N), 76 deg. 58.2 min. W ( 76.970W) |
| Depth | 1 km (0.6 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst= 3, Nph= 7, Dmin=53.9 km, Rmss=0.14 sec, Erho=0.5 km, Erzz=0 km, Gp=151.2 degrees |
| Event ID# | ld1023835 |
| Additional Information | map |