PAGER stands for the Prompt Assessment of Global Earthqu
Those estimates can be found on our Earthquake Statistics website.
East Coast: Historically, no tsunamis have been generated on the east coast, a consequence of the low level of seismic activity and the lack of vertical fault
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Currently, PAGER results are not directly available to the public through e-mail. However, users can sign up for earthquake alerts through the USGS Earthquake Notification Service (ENS).
The earliest reference we have to unusual animal behavior prior to a significant earthquake is from Greece in 373 BC. Rats, weasels, snakes, and centipedes reportedly left their homes and headed for safety several days before a destructive earthquake.
Report an earthquake experience or related observation through the Did You Feel It? citizen science webpage.
The results of past calculations are stored in a table near the bottom of the page. Subsequent calculations will be appended to this table until you reload or leave the page. 
Both earthquakes and nuclear tests can rapidly release a large amount of energy. The energy source for small yield (typically less than 50 kilotons) thermonuclear devices is the splitting of heavy radioactive isotopes.