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 73900781, which has the following hypoDD-RT solution:
Date: 2023/06/13 | Time: 20:05:33.630 | Latitude: 35.67495 | Longitude: -120.99110 | Depth: 2.184 | Magnitude: 1.40
Quality: 2 | Shift: 0.376 | Version: 3.1The 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 5027 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), Felix Waldhauser and Eric Malikowski (LDEO).
Time created: Wed Jun 14 06:01:45 UTC 2023