February 17, 2012 Small Earthquake Swarm North of Machias

The New England Seismic Network (NESN) has reported a series of small earthquakes in Maine, as follows:
"Weston Observatory seismographs recorded several earthquakes near Machias, Maine during the morning of February 17. There have been 6 earthquakes recorded so far. The 4 largest can be seen on the seismogram below. The first is a magnitude 2.3 occurring at 12:52 AM EST, the second is a magnitude 2.4 occurring at 1:03 AM EST, the third is a magnitude 1.7 occurring at 1:40 AM EST and the fourth is a magnitude 0.8 occurring at 1:26 AM EST. 2 more earthquakes are too small to be seen on this seismogram."


seismogram of February earthquake swarm.

Figure 1. Seismogram of the PKME seismic station located in Peaks-Kenny State Park. From The New England Seismic Network (NESN)

Last updated on June 30, 2022