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 75146071, which has the following hypoDD-RT solution:
Date: 2025/03/10 | Time: 06:12:8.900 | Latitude: 38.77979 | Longitude: -122.75798 | Depth: 2.102 | Magnitude: 1.10
Quality: 1 | Shift: 0.929 | 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 base catalog for Northern California (NCAeqDD.v201112.1). Hypocenters from 2012 up to present are taken from the real-time double-difference catalog DD-RT (NCAeqDDRT.v201201). Earthquakes from the DD catalog are represented by gray dots, those from the DD-RT catalog by colored dots.
There are 12097 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), Felix Waldhauser and Eric Malikowski (LDEO).
Time created: Sat Mar 22 04:01:53 UTC 2025