Community Seismic Network
A low-cost dense seismic network

CSN - Available Data

If you use data available below, cite:

"Community Seismic Network. (2024). Community Seismic Network Earthquake Dataset: http://csn.caltech.edu/data/ [Data set]. CaltechDATA. https://doi.org/10.22002/h2f92-ejv09."

The CSN sensors are largely hosted by volunteers and, although they are decimated to prevent recording human voices, can detect events such as a door closing, elevators moving, etc, which are not part of our mission. Out of respect for the privacy of our hosts, we do not distribute continuous waveform data. However, when there is an interesting earthquake, the available data are shown in the tables below. In each entry, the 'Link' column is a link to a zip file containing the time series for each station in the network (at the time of the event). The data are in SAC (Seismic Analysis Code) format, a binary format commonly used with seismic waveform data.

2024

Date-Time (UTC) Mag Latitude Longitude Depth Eq ID Link Name
2024/01/01,16:27:32 4.1 33.580 -118.370 11.4 ci40453591 .zip Rancho Palos Verdes
2024/01/05,18:55:54 4.2 34.258 -117.509 9.2 ci40455759 .zip Lytle Creek
2024/01/25,03:43:20 4.2 34.112 -117.312 15.8 ci39756418 .zip San Bernardino
2024/02/09,21:47:27 4.6 34.057 -118.908 15.3 ci40664632 .zip Malibu

2023

Date-Time (UTC) Mag Latitude Longitude Depth Eq ID Link Name
2023/01/25,10:00:54 4.2 33.885 -118.704 14.7 ci40161279 .zip Malibu
2023/07/02,09:29:49 3.7 33.827 -118.881 10.7 ci40501968 .zip Malibu
2023/08/20,21:41:01 5.1 34.4085 -119.1883 4.8 ci39645386 .zip Ojai
2023/10/18,16:29:14 4.2 38.127 -121.643 8.5 nc73948665 .zip Isleton
2023/10/28,01:38:31 3.7 37.618 -122.377 3.7 nc73952475 .zip Millbrae

2022

Date-Time (UTC) Mag Latitude Longitude Depth Eq ID Link Name
2022/09/19,18:05:07 7.6 18.367 -103.252 15.0 us7000i9bs .zip Mexico

2021

Date-Time (UTC) Mag Latitude Longitude Depth Eq ID Link Name
2021/01/20,16:31:59 3.5 33.9187 -118.2717 19.8 ci39762912 .zip Willowbrook
2021/04/05,11:44:02 4.0 33.9405 -118.3333 19.3 ci39838928 .zip Lennox
2021/06/24,00:08:35 3.2 33.9498 -118.3947 11.7 ci39716863 .zip El Segundo
2021/09/18,02:58:34 4.3 33.8313 -118.2637 11.9 ci39812319 .zip Carson

2020

Date-Time (UTC) Mag Latitude Longitude Depth Eq ID Link Name
2020/04/22,07:03:48 3.7 33.9890 -118.3495 11.6 ci39400304 .zip Windsor Hills
2020/07/30,11:29:29 4.2 34.3017 -118.4383 8.8 ci39322287 .zip Pacoima
2020/09/19,06:38:47 4.5 34.0385 -118.0803 16.9 ci38695658 .zip El Monte

2019

Date-Time (UTC) Mag Latitude Longitude Depth Eq ID Link Name
2019/07/04,17:33:49 6.4 35.7052 -117.5060 10.7 ci38443183 .zip Searle Valley
2019/07/06,03:19:53 7.1 35.7695 -117.5993 8.0 ci38457511 .zip Ridgecrest
2019/10/18,07:19:51 3.5 33.8913 -118.2185 23.6 ci38905415 .zip Compton

2018

Date-Time (UTC) Mag Latitude Longitude Depth Eq ID Link Name
2018/01/25,10:09:56 4.0 33.7410 -117.4910 11.2 ci38092312 .zip Trabuco Canyon
2018/02/17,10:16:56 2.9 34.0860 -118.2560 6.7 ci38110592 .zip Silver Lake
2018/04/05,19:29:16 5.3 33.8380 -119.7260 9.9 ci37908735 .zip Santa Cruz Island
2018/05/08,11:49:34 4.5 34.0160 -116.7800 12.9 ci38167848 .zip Cabazon
2018/08/29,02:33:28 4.4 34.1360 -117.7750 5.5 ci38038071 .zip La Verne 3

2017

Date-Time (UTC) Mag Latitude Longitude Depth Eq ID Link Name
2017/05/02,05:28:41 3.1 34.0260 -118.5190 9.6 ci37637991 .zip Santa Monica
2017/09/08,04:49:21 8.1 15.0680 -93.7150 69.7 us2000avh0 .zip Mexico
2017/11/10,09:25:11 3.1 33.9310 -118.3020 11.9 ci37809031 .zip Willowbrook
2017/12/07,00:33:15 4.0 34.1480 -116.4790 11.1 ci37824087 .zip Julian

2016

Date-Time (UTC) Mag Latitude Longitude Depth Eq ID Link Name
2016/01/06,14:42:34 4.4 33.9580 -116.8880 16.7 ci37510616 .zip Banning
2016/01/11,03:13:52 3.1 33.9540 -117.9090 3.3 ci37511872 .zip Rowland Heights
2016/01/14,04:23:58 3.6 35.4060 -117.8100 6.9 ci37295831 .zip Johannesburg 2
2016/02/16,09:24:20 3.9 34.3030 -116.8630 3.1 ci37524376 .zip Big Bear City
2016/02/20,06:13:20 4.3 34.6100 -116.6290 6.7 ci37526424 .zip Lucerne Valley
2016/02/24,00:02:23 4.9 35.5420 -119.3730 22.1 ci37528064 .zip Wasco
2016/06/10,08:04:38 5.2 33.4310 -116.4430 12.3 ci37374687 .zip Borrego Springs
2016/09/20,14:43:58 3.0 33.9140 -118.2980 11.7 ci37695608 .zip Gardena

2015

Date-Time (UTC) Mag Latitude Longitude Depth Eq ID Link Name
2015/01/04,03:18:09 4.2 34.6200 -118.6300 8.8 ci37301704 .zip Lake Castaic
2015/04/13,04:17:41 3.3 33.9920 -118.3620 11.7 ci37362808 .zip View Park
2015/04/30,14:01:15 3.4 33.8510 -118.2510 14.7 ci37372672 .zip Carson
2015/05/30,11:23:02 7.8 27.8310 -140.4930 189.0 us20002ki3 .zip Japan Teleseism
2015/07/25,12:54:07 3.8 34.0900 -117.4450 5.1 ci37213455 .zip Fontana 2015
2015/10/11,08:23:47 2.7 34.0000 -117.9760 4.5 ci37474256 .zip Hacienda Heights
2015/10/14,13:55:29 3.5 34.1970 -116.9070 10.1 ci37475560 .zip Big Bear Lake
2015/10/25,11:05:01 3.3 34.0620 -118.7590 10.0 ci37263871 .zip Malibu
2015/11/05,10:58:54 3.5 34.3420 -118.4660 3.3 ci37485624 .zip Pacoima
2015/11/18,04:41:48 3.4 34.1750 -117.4400 9.0 ci37274199 .zip Fontana 4
2015/12/27,18:31:18 4.2 35.2140 -117.2810 3.2 ci37506472 .zip Johannesburg
2015/12/30,01:48:57 4.4 34.1910 -117.4130 7.0 ci37507576 .zip Devore

2014

Date-Time (UTC) Mag Latitude Longitude Depth Eq ID Link Name
2014/01/15,09:35:18 4.4 34.1430 -117.4420 3.5 ci11413954 .zip Fontana 3
2014/02/08,18:13:08 3.0 34.0850 -118.2860 8.0 ci11422298 .zip Hollywood
2014/03/17,13:25:36 4.4 34.1350 -118.4860 9.9 ci15476961 .zip Westwood
2014/03/29,04:09:42 5.1 33.9190 -117.9440 7.5 ci15481673 .zip La Habra

2013

Date-Time (UTC) Mag Latitude Longitude Depth Eq ID Link Name
2013/02/10,20:26:43 1.9 34.2140 -117.5520 8.0 ci11242634 .zip Rancho Cucamonga
2013/03/11,16:56:06 4.7 33.5020 -116.4570 13.1 ci15296281 .zip Anza
2013/03/13,04:21:13 3.4 33.5130 -116.4750 11.8 ci15302289 .zip Anza 2
2013/03/17,14:00:38 2.0 34.1220 -117.4900 14.5 ci15307913 .zip Fontana 2
2013/03/20,16:22:40 2.8 34.0240 -118.2100 16.0 ci15310433 .zip Los Angeles
2013/04/27,02:52:18 3.2 33.9600 -118.4240 12.0 ci15333497 .zip Marina del Rey
2013/04/29,03:06:19 2.8 33.9620 -118.4220 12.0 ci15334521 .zip Marina del Rey 2
2013/05/07,09:06:09 3.6 34.4890 -119.3040 13.4 ci15338761 .zip Meiners Oaks
2013/05/29,14:38:02 4.9 34.4050 -119.9180 0.0 ci15350729 .zip Santa Barbara Channel
2013/06/07,11:25:31 2.9 33.6660 -118.3930 2.0 ci15356345 .zip Rancho Palos Verdes
2013/07/24,16:46:02 4.3 35.4860 -118.2870 6.6 ci11339042 .zip Weldon
2013/08/25,18:50:28 4.2 35.4800 -118.2850 2.3 ci15396881 .zip Weldon 2
2013/09/19,11:43:55 3.7 34.0810 -117.7850 2.7 ci11366538 .zip La Verne
2013/09/19,12:06:33 3.8 34.0830 -117.7850 2.7 ci11366562 .zip La Verne 2
2013/10/06,02:06:21 4.2 34.7090 -116.2940 1.9 ci11373458 .zip Joshua Tree
2013/10/17,12:35:20 1.7 34.2180 -118.1910 2.3 ci11379746 .zip La Canada

2012

Date-Time (UTC) Mag Latitude Longitude Depth Eq ID Link Name
2012/07/05,18:48:07 2.1 34.1610 -118.1630 16.0 ci11132378 .zip Altadena
2012/08/08,16:33:32 4.3 33.9000 -117.7900 10.0 ci15189281 .zip Yorba Linda 2
2012/08/26,20:57:58 5.5 33.0260 -115.5400 9.0 ci15200401 .zip Brawley
2012/09/03,10:26:56 3.2 34.0750 -118.3900 2.4 ci15210193 .zip Beverly Hills
2012/10/28,15:24:23 3.9 34.3510 -118.4580 3.4 ci15237281 .zip Newhall 2
2012/11/05,04:06:40 2.4 33.9570 -118.3670 4.3 ci15241329 .zip Lennox
2012/11/06,02:39:15 3.3 33.8920 -118.5730 15.3 ci15241697 .zip Manhattan Beach
2012/11/08,03:33:14 2.4 34.3370 -118.4760 4.3 ci15242577 .zip San Fernando
2012/11/14,00:25:26 1.7 34.0480 -118.0990 2.3 ci15244793 .zip Monterey Park
2012/11/19,15:44:58 2.6 34.1500 -118.3540 13.8 ci11205898 .zip North Hollywood 2