Latest Events

 

Latest DDRT Event Relocation Stats

Event ID Time (UTC) Location Depth Mag. Delta Tech Summary 3D
73261925 2019-08-30 04:54:37 35.55529° -120.80043° 5.105 1.4 0.102 tech summary 3D
73261920 2019-08-30 04:54:37 35.55194° -120.80461° 5.462 1.9 0.860 tech summary 3D
73261910 2019-08-30 04:33:48 38.79353° -122.82739° 4.003 0.1 0.528 tech summary 3D
73261905 2019-08-30 04:29:35 38.79764° -122.78537° 5.269 0.6 0.915 tech summary 3D
73261900 2019-08-30 04:24:26 38.86176° -122.77154° 1.885 1.0 1.015 tech summary 3D
73261890 2019-08-30 04:17:02 38.77746° -122.72835° 2.24 1.1 1.388 tech summary 3D
73261895 2019-08-30 04:14:39 37.33829° -122.1277° 6.249 0.3 2.038 tech summary 3D
73261885 2019-08-30 04:12:47 37.5307° -118.98585° 5.449 1.0 1.280 tech summary 3D
73261875 2019-08-30 03:44:30 38.82041° -122.7744° 3.013 0.2 0.573 tech summary 3D
73261865 2019-08-30 03:27:39 38.78556° -122.7434° 2.003 -0.1 0.674 tech summary 3D
73261860 2019-08-30 01:43:50 38.82205° -122.7908° 3.915 1.0 1.157 tech summary 3D
73261855 2019-08-30 00:59:22 38.84279° -122.81545° 3.094 0.1 2.899 tech summary 3D
73261850 2019-08-30 00:44:30 35.9898° -120.5425° -0.45 0.2 0.000 tech summary 3D
73261845 2019-08-30 00:38:04 38.83664° -122.82847° 1.553 0.1 0.422 tech summary 3D
73261840 2019-08-30 00:27:30 35.7121° -121.04421° 6.709 1.4 0.708 tech summary 3D
73261835 2019-08-30 00:27:30 35.71142° -121.04354° 6.685 1.5 0.552 tech summary 3D
73261830 2019-08-30 00:19:50 38.83826° -122.8273° 1.834 0.6 0.698 tech summary 3D
73261825 2019-08-30 00:11:00 37.90816° -121.97912° 10.643 1.3 0.426 tech summary 3D
73261820 2019-08-29 23:52:24 38.83903° -122.82745° 1.755 0.6 1.287 tech summary 3D
73261810 2019-08-29 22:56:17 37.59522° -119.00747° 4.682 0.3 2.857 tech summary 3D
73261805 2019-08-29 22:51:24 38.841° -122.82964° 3.049 1.7 0.710 tech summary 3D
73261800 2019-08-29 22:45:30 38.84068° -122.83114° 2.612 0.2 0.762 tech summary 3D
73261795 2019-08-29 22:42:22 38.7938° -122.7352° 1.9 0.4 0.000 tech summary 3D
73261790 2019-08-29 21:59:23 36.54235° -121.13212° 6.287 1.3 1.550 tech summary 3D
73261780 2019-08-29 21:52:50 38.80454° -122.77717° 3.424 0.2 0.714 tech summary 3D
73261770 2019-08-29 21:33:58 37.6085° -118.8497° 4.02 0.6 0.000 tech summary 3D
73261765 2019-08-29 21:15:20 38.79001° -122.80152° 4.149 1.1 1.110 tech summary 3D
73261760 2019-08-29 21:11:02 38.79093° -122.77419° 0.737 0.6 0.733 tech summary 3D
73261755 2019-08-29 21:07:44 38.78418° -122.75612° 2.149 0.9 0.895 tech summary 3D
73261750 2019-08-29 20:53:26 38.0377° -121.8532° 2.48 1.6 0.000 tech summary 3D

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This website displays automatic near-real-time double-difference (DD-RT) hypocenter locations for earthquakes recorded in northern California and routinely processed at the Northern California Seismic Network (NCSN). more...The DD-RT process relocates new earthquakes relative to a high-resolution DD catalog of background seismicity, NCAeqDD, by using differential times between the new event and its neighboring (reference) events in the DD catalog. Routinely determined parametric data of new events, such as phase picks and hypocentral information, are automatically sent to LDEO by the NCSN and waveforms are accessed from the real-time DART server at the Northern California Earthquake Data Center (NCEDC) in Berkeley. Data associated with the reference events are accessed from a locally stored copy of the entire Northern CA seismic archive. See Waldhauser (BSSA, 2009) for more information.

Archives

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2024: 01 02 03 04 05 06 07 08 09 10 11 12

2023: 01 02 03 04 05 06 07 08 09 10 11 12

2022: 01 02 03 04 05 06 07 08 09 10 11 12

2021: 01 02 03 04 05 06 07 08 09 10 11 12

2020: 01 02 03 04 05 06 07 08 09 10 11 12

2019: 01 02 03 04 05 06 07 08 09 10 11 12

2018: 01 02 03 04 05 06 07 08 09 10 11 12

2017: 01 02 03 04 05 06 07 08 09 10 11 12

2016: 01 02 03 04 05 06 07 08 09 10 11 12

2015: 01 02 03 04 05 06 07 08 09 10 11 12

2014: 01 02 03 04 05 06 07 08 09 10 11 12

2013: 01 02 03 04 05 06 07 08 09 10 11 12

2012: 01 02 03 04 05 06 07 08 09 10 11 12

Faults & Regions of Interest

Earthquakes of Interest

Event Types

  • Original CISN event
  • Relocated DDRT event

Event Magnitudes

  • ≤ 2
  • ≥ 2
  • ≥ 3
  • ≥ 4
  • ≥ 5
  • ≥ 6
  • ≥ 7