This page uses the Three.js 3D JavaScript library to show real-time double-difference hypocenter locations of earthquakes in Northern California. The box below is centered on event 73376245, which has the following hypoDD-RT solution:
Date: 2020/04/25 | Time: 12:22:28.940 | Latitude: 39.02521 | Longitude: -123.06012 | Depth: 0.001 | Magnitude: 1.20
Quality: 1 | Shift: 0.619 | Version: 2.1The high-resolution background seismicity included in the box comes from two double-difference catalogs. Hypocenters for the years 1984-2011 are taken from the DD catalog for Northern California (NCAeqDD.v201112.1). Hypocenters from 2010 up to present are taken from the real-time double-difference catalog DD-RT (NCAeqDD-RT.v201001). Earthquakes from the DD catalog are represented by gray dots, those from the DD-RT catalog by colored dots.
There are 812 earthquakes in the box. Magnitude cutoff is 1 (except for events within the last week).
Legend:
Viewer instructions:
|
3D applet written by Robert Simpson (USGS) and Eric Malikowski (LDEO).
Time created: Sat May 2 15:46:27 UTC 2020