This page uses the 3D JavaView viewer to show real-time double-difference hypocenter locations of earthquakes in Northern California. The box below is centered on event 72141530, which has the following hypoDD-RT solution:
Date: 2014/01/16 | Time: 23:08:34.000 | Latitude: 34.14550 | Longitude: -117.43450 | Depth: 7.400 | Magnitude: 2.00
Quality: -9 | Shift: -9 | Version: 0.0The high-resolution background seismicity included in the box comes from two double-difference catalogs. Hypocenters for the years 1984-2009 are taken from the DD catalog for Northern California (NCAeqDD.v200912.1). 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 circles, those from the DD-RT catalog by colored circles.
There are 21 earthquakes in the box. Magnitude cutoff is 1 (except for events within the last week).
Legend:
Viewer instructions:
|
The 3D applet was written by Robert Simpson (USGS) and was adapted to run from within the real-time double-difference relocation system DDRT. Contact: felixw@ldeo.columbia.edu or simpson@usgs.gov.
Time created: Thu Jan 16 23:16:30 UTC 2014