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 73371420, which has the following hypoDD-RT solution:
Date: 2020/04/16 | Time: 02:59:0.780 | Latitude: 38.81786 | Longitude: -122.82429 | Depth: 3.193 | Magnitude: 0.90
Quality: 1 | Shift: 0.916 | Version: 0.1The 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 10202 earthquakes in the box. Magnitude cutoff is 2 (except for events within the last week).
Legend:
Viewer instructions:
|
3D applet written by Robert Simpson (USGS) and Eric Malikowski (LDEO).
Time created: Thu Apr 16 03:11:45 UTC 2020