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 6:36:11 PM (EDT) on Thursday, April 30, 2009
.
The magnitude 2.0 event occurred 21 km (13 miles) SW of Harrisburg,PA.
The hypocentral depth is 1 km ( 1 mile).
| Magnitude | 2.0 - duration magnitude (Md) |
|---|---|
| Time | Thursday, April 30, 2009 at 6:36:11 PM (EDT)
Thursday, April 30, 2009 at 22:36:11 (UTC) |
| Distance from | Harrisburg,PA - 21 km (13 miles) SW (220 degrees) Middletown,PA - 25 km (16 miles) SW (236 degrees) Harrisburg,PA - 48 km (30 miles) SE (134 degrees) |
| Coordinates | 40 deg. 4.4 min. N (40.073N), 77 deg. 0.8 min. W ( 77.013W) |
| Depth | 1 km (0.6 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst= 9, Nph= 19, Dmin=57 km, Rmss=0.24 sec, Erho=0.4 km, Erzz=0 km, Gp=140.4 degrees |
| Event ID# | ld1023768 |
| Additional Information | map |