5/22/2015 — Rare East Coast earthquake strikes MAINE — Forecast to occur 24 hours prior

A very rare 2.1M earthquake has struck the East coast in Maine.

The epicenter of the magnitude 2.1 event was near the town of Peru, Maine.

2.1 maine may 22 2015


This event was expected to occur in light of the other activity which occurred Southwest of this location.

The area from Virgina to New Brunswick was forecast to show seismic movement a full day before this event in Maine happened.

Quite literally, the earthquake forecast issued on May 21, 2015 called for a small swarm of earthquakes to strike the Northeast edge of the craton between Virginia, and New Brunswick.

24 hours after the warning was issued, we see movement strike directly in the middle of the warned zone.

See the forecast for the East coast here: (talking East coast at about 20min 55sec into this video)


Going forward, we still have over 6 full days left to go in the forecast watch time.  Thus, we should expect more East coast movement over the next 7 days.

Now that Maine is already showing movement on day 1 of the forecast, I think we’ll be seeing more movement in the Northeast over the next week for sure.

Movement on day 1 of the forecast means the area was primed, and ready to go.


Information on this Maine earthquake from the USGS:


Magnitude / uncertainty 2.0 ml± 0.1
Location / uncertainty 44.504°N 70.313°W± 1.0 km
Depth / uncertainty 5.7 km± 7.7
Origin Time 2015-05-22 04:45:00.450 UTC
Number of Stations
Number of Phases 30
Minimum Distance 52.21 km (0.47°)
Travel Time Residual 0.40 sec
Azimuthal Gap 116°
FE Region Maine (475)


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