Va. well reacts to Haiti quake; aftershocks continue
The US. Geological Survey continues to monitor seismic events in Haiti in the wake of last evening's terrible 7.0 quake just outside the capital of Port-au-Prince. At last check, the country had sustained at least 34 aftershocks of magnitude 4.5 to 5.9.
Other faults in the region have also been active. There was a magnitude 2.5 tremor early today in the Mona Passage between Hispaniola and Puerto Rico. And the Virgin Islands reported a 3.2 shake late last night.
The powerful quake in Haiti registered strongly in a water well in Christiansburg, in southwestern Virginia, operated by the Va. Department of Environmental Quality and monitored by the USGS.
The well is very sensitive to seismic waves passing through the Earth, and water levels will rise and fall sharply in response to large quakes around the world. Here (below) is the tracing of the well's water levels in the past few days. The Haiti quake is reflected in the sharp spike - more than 9 inches - on Jan. 12.
USGS officials in Baltimore said they have seen no similar response to the quake in water wells monitored in Maryland or Delaware. (No word from dog owners. Here's how one pooch reacted seconds BEFORE the recent quake off the Northern California coast.)