Significant Earthquakes Past 30 Days

Today’s Earthquake Fact

During post-tsunami field surveys, inundation and runup measurements are taken to describe the tsunami effects. Inundation is defined as the maximum horizontal distance inland that a tsunami penetrates. Runup is the maximum vertical height above mean sea level that the sea surface attains during a tsunami. Actual tsunami wave heights can be measured from the amplitude of the wave signals seen on sea level or tide gauge instruments.

Today in Earthquake History


May 30, 1998
M 6.6, Afghanistan – One of the world's deadliest earthquakes. At least 4,000 people killed, many thousands injured… Read More

Magnitude 2.5+ Earthquakes Past Day

Real-time & Historical Earthquake Information

Significant Earthquake Archive

Errata for Latest Earthquakes