A Digital Object Identifier (DOI) is basically what its name suggests, a unique string of characters used to identify a digital object, such as an academic publication (e.g. Twenty years of volcano ...

When it comes to earthquakes, the ground shaking that people feel is important to us, and contributes to our data source. By submitting a Felt Report, our seismologists learn more about the intensity ...

Magnitude 3.9, Wed Jun 25 2025 12:19 AM ...

Location history for this earthquake. The automatic earthquake location system makes many locations for each quake. Not all quakes have a location history ...

0 100 Depth (km) 0 1 2 Time since earthquake (minutes) Depth History p. The depth history for this event. The most recent value is shown as a larger circle and also labeled; c: caution, g: good b: ...