Massachusetts has a history of felt earthquakes, including the notable 1755 Cape Ann event offshore. This page pulls real records for Massachusetts: the largest earthquakes on record from USGS, how often the ground shakes nearby, tsunamis from the NOAA database, and volcanoes from the Smithsonian program. Nothing is guessed.
A quiet recent record is good news, but many damaging earthquakes strike places that were quiet for decades. The only real protection is a warning the moment the ground moves - which is exactly what the free QuakeMate app gives you, along with tsunami and volcano alerts for Massachusetts.
Check Massachusetts hazard risk in detail
An interactive breakdown of the earthquake, tsunami and volcano risk in Massachusetts - or search any city or region.
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Earthquake risk in Massachusetts - FAQ
Is Massachusetts at risk of earthquakes?
Yes. On average about 1 quake every 10 years nearby of magnitude 4+ within 300 km, based on the last 20 years of USGS data.
What was the biggest earthquake in Massachusetts?
We don't have a standout large earthquake on record close to Massachusetts in the modern catalog, though smaller quakes can still occur.
Does Massachusetts get tsunamis?
Yes - 11 tsunamis since 1668 (most recently 2008) within 300 km, from the NOAA database. The deadliest killed around 3 people.
How do I get earthquake warnings in Massachusetts?
Download the free QuakeMate app for iPhone. It watches your location and sends a real-time push the instant a quake strikes nearby, plus tsunami and volcano alerts, with custom magnitude and distance rules. On Android, join the waitlist.