Earthquake Early Warning: Difference between revisions

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== SCEC Earthquake Early Warning Activities ==
[[Image:SCEC_NSF-USGS-words_logom.png|left|150px]][[Image:CISNlogos.png|right|250px]]
SCEC4 science plans emphasize the development and use of time-dependent seismic hazard analysis. SCEC is working to extend time-dependent seismic hazard analysis through application of EEW technologies.
[[Image:Swiss_Seismological_Service-Logo.png‎|right|40px]]
[[Image:usgs-logo-color.jpg|right|150px]]


== CISN ShakeAlert System ==
Earthquake early warning (EEW) is a technology that can provide rapid information about an earthquake. Under favorable circumstances, EEW technology can provide automated warning of strong ground motions from an earthquake before those ground motions have propagated to all affected sites. EEW technology provides warnings after the earthquake has begun but before the earthquake has affected all users.
SCEC is working with the [http://www.cisn.org California Integrated Seismic Network (CISN)] in the development and evaluation of a prototype CISN EEW system.


== CISN EEW Testing System Development ==
== EEW Technology Description ==
SCEC is working to developed automated CISN EEW performance evaluation system. This system, currently called the CISN Testing Center (CTC), is based on the testing framework developed on the SCEC CSEP project.


== Example Observations from ShakeMap RSS for Event (M5.0 ) ==
EEW forecast capabilities require (a) ground motion (or other) geophysical sensors, (b) scientific processing software, and (c) a communication system distributing information to users. Detailed descriptions of EEW technology can be found here:


[[File:scec.eew.EEWTest.eewTest_SHAKEMAP-Test_Event10736069.png|256px|thumb|left|Fig 1: Plotting of ShakeMap observation data for Event in Southern California.]]
*[http://en.wikipedia.org/wiki/Earthquake_warning_system EEW (Wikipedia)]
*[http://en.wikipedia.org/wiki/Earthquake_Early_Warning_%28Japan%29 Japan EEW]


[[File:scec.eew.EEWTest.eewTest_SHAKEMAP-Test_ZoomEvent10736069.png|256px|thumb|right|Fig 2: Plotting of ShakeMap observation data for Event in Southern California.]]
== CISN EEW Project  ==


[http://www.cisn.org California Integrated Seismic Network (CISN)] research groups, together with SCEC and USGS, are developing a prototype CISN EEW system called the CISN [http://earthquake.usgs.gov/earthquakes/ ShakeAlert] system.


[[SCEC]]'s current research focus on the [[ShakeAlert]] project is the development of an automated CISN EEW performance evaluation system. This EEW performance evaluation system, currently called the CISN Testing Center (CTC), is based on the testing framework developed on the SCEC [[CSEP]] project.


SCEC4 science plans emphasize the development and use of time-dependent seismic hazard analysis. SCEC earthquake system science research approach seeks to integrate EEW technologies into time-dependent seismic hazard analysis through applications.


CISN and SCEC are collaborating on the development of EEW evaluation tools and techniques. Detailed EEW development notes and current evaluation results are posted on related wiki entries including:


*[[CISN Testing Center]]
*[[CISN Testing Center (CTC) Results]]
*[[ShakeAlert]]


== CISN EEW Collaborators ==


*[http://www.cisn.org/ CISN Home Page]
*[http://eew.caltech.edu/ Caltech EEW Page]
*[http://www.seismolab.caltech.edu/index.html Caltech Seismology]
*[http://seismo.berkeley.edu/ U.C. Berkeley Seismological Station]
*[http://earthquake.usgs.gov/regional/sca/ USGS Pasadena Seismic Network Operations]
*[http://earthquake.usgs.gov/regional/nca/ USGS Menlo Park Seismic Network Operations]
*[http://www.seismo.ethz.ch/index_EN Swiss Seismological Service at ETH Zurich]
*[http://www.scec.org/ Southern California Earthquake Center (SCEC)]


== California Earthquake Information ==
*[http://earthquake.usgs.gov/earthquakes/recenteqscanv/ CISN Recent Earthquakes]
*[http://earthquake.usgs.gov/earthquakes/shakemap/ USGS ShakeMap]


== Related Entries ==


 
*[[EEW Evaluation]]
 
*[[CSEP]]
 
*[[Main Page]]
 
== Test Event List 2010 ==
 
    * catalog=ANSS
    * start_time=2010/06/01,00:00:00
    * end_time=2010/11/01,00:00:00
    * minimum_latitude=32.00
    * maximum_latitude=42.00
    * minimum_longitude=-122.00
    * maximum_longitude=-114.00
    * minimum_magnitude=4.0
    * maximum_magnitude=10
    * event_type=E
 
Date      Time            Lat      Lon  Depth  Mag Magt  Nst Gap  Clo  RMS  SRC  Event ID
----------------------------------------------------------------------------------------------
2010/06/02 16:07:48.08  32.0560 -115.1967  10.00  4.30  ML  12          0.22  CI      14732212
2010/06/03 18:10:04.03  32.6952 -115.9142  5.11  4.10  ML  43          0.23  CI      14733516
2010/06/10 22:07:12.97  32.0305 -115.1072  10.00  4.14  ML    7          0.28  CI      10699845
2010/06/11 20:51:11.69  32.3900 -115.1818  15.00  4.26  ML  17          0.29  CI      10700429
2010/06/12 15:29:25.45  37.4527 -117.5194  5.87  4.54  ML  25  96  53 0.14  NN        312414
2010/06/13 03:08:57.09  33.3833 -116.4158  12.48  4.90  ML  125          0.26  CI      10701405
2010/06/13 03:09:20.36  33.3920 -116.3947  5.57  4.23  ML  44          0.32  CI      10701413
2010/06/14 07:02:26.97  32.1803 -115.3155  10.00  4.69  ML  11          0.20  CI      10703133
2010/06/15 04:26:58.48  32.7002 -115.9213  5.41  5.72  Mw  52          0.28  CI      14745580
2010/06/15 04:36:07.63  32.6792 -115.9242  12.48  4.11  ML  49          0.37  CI      14745636
2010/06/15 04:59:45.53  32.6995 -115.9500  10.69  4.61  ML  71          0.33  CI      14745932
2010/06/15 05:34:16.83  32.7088 -115.9563  5.52  4.35  ML  68          0.28  CI      14746172
2010/06/15 08:14:47.02  32.6880 -115.9108  3.77  4.15  ML  67          0.30  CI      14747396
2010/06/17 09:05:38.19  32.0748 -115.0040  10.00  4.13  ML    9          0.40  CI      10160722
2010/06/25 06:37:52.80  32.6188 -115.7947  6.44  4.17  ML  50          0.31  CI      10724149
2010/07/06 16:38:05.23  32.2180 -115.3462  1.51  4.27  ML  16          0.23  CI      14776012
2010/07/07 23:53:33.53  33.4205 -116.4887  13.97  5.43  Mw  144          0.27  CI      10736069
2010/07/20 21:48:29.98  40.0764 -119.6219  11.75  4.22  ML  33 245  23 0.10  NN        314044
2010/07/30 11:13:46.81  38.6220 -118.2116  11.14  4.24  ML  19 189  27 0.11  NN        314505
2010/08/06 17:39:31.67  33.9790 -116.4432  7.66  4.05  ML  122          0.18  CI      10771621
2010/08/24 21:43:39.96  32.3633 -115.4110  10.00  4.22  ML  21          0.30  CI      10785477
2010/08/29 15:53:43.42  32.1803 -115.2930  10.00  4.28  ML  15          0.22  CI      10788765
2010/09/14 10:52:18.00  32.0485 -115.1982  10.00  4.96  Mw  14          0.21  CI      10798005
2010/09/15 06:09:53.38  32.1647 -115.2467  13.79  4.79  ML  12          0.20  CI      10798845
2010/09/20 00:30:02.40  32.0262 -115.1083  10.00  4.75  Mw    9          0.22  CI      14844244
2010/09/30 08:37:35.93  37.1385 -117.3803  8.47  4.42  ML  24 144  21 0.23  NN        317359
2010/10/05 21:22:46.52  37.1526 -117.3758  9.21  4.14  ML  13 164  19 0.12  NN        318065
 
== Additional ShakeAlert Information ==
*[http://www.cisn.org/ CISN Home Page]
*[http://www.usgs.gov/newsroom/article.asp?ID=2366&from=rss_home USGS ShakeAlert Press Release]
*[http://www.seismolab.caltech.edu/ Caltech Seismo Lab]
*[http://seismo.berkeley.edu/ U.C. Berkeley Seismo Lab]
*[http://earthquake.usgs.gov/regional/sca/ USGS Pasadena Seismic Network Operations]
*[http://earthquake.usgs.gov/regional/nca/ USGS Menlo Park Seismic Network Operations]

Latest revision as of 19:13, 29 May 2012

Earthquake early warning (EEW) is a technology that can provide rapid information about an earthquake. Under favorable circumstances, EEW technology can provide automated warning of strong ground motions from an earthquake before those ground motions have propagated to all affected sites. EEW technology provides warnings after the earthquake has begun but before the earthquake has affected all users.

EEW Technology Description

EEW forecast capabilities require (a) ground motion (or other) geophysical sensors, (b) scientific processing software, and (c) a communication system distributing information to users. Detailed descriptions of EEW technology can be found here:

CISN EEW Project

California Integrated Seismic Network (CISN) research groups, together with SCEC and USGS, are developing a prototype CISN EEW system called the CISN ShakeAlert system.

SCEC's current research focus on the ShakeAlert project is the development of an automated CISN EEW performance evaluation system. This EEW performance evaluation system, currently called the CISN Testing Center (CTC), is based on the testing framework developed on the SCEC CSEP project.

SCEC4 science plans emphasize the development and use of time-dependent seismic hazard analysis. SCEC earthquake system science research approach seeks to integrate EEW technologies into time-dependent seismic hazard analysis through applications.

CISN and SCEC are collaborating on the development of EEW evaluation tools and techniques. Detailed EEW development notes and current evaluation results are posted on related wiki entries including:

CISN EEW Collaborators

California Earthquake Information

Related Entries

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