Earthquake with magnitude of Mwp 7.2 on date 08-09-2021 and time 01:47:49 (UTC) in region Guerrero, Mexico [Land: Mexico]

A magnitude Mwp 7.2 earthquake occured in region: Guerrero, Mexico [Land: Mexico], on

  • 08-09-2021 01:47:49 (UTC)
  • 08-09-2021 03:47:49 (UTC +02:00) Italian time
  • 07-09-2021 20:47:49 (UTC -05:00) local time in the region of the earthquake (America/Mexico_City)

and geographic coordinates (lat, lon) 17.163, -99.646 at 20 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

No Italian municipalities within 100 km from the epicenter with at least 50000 inhabitants.

Recent and historical seismicity
Seismic hazard
Shakemap

These three maps show the results of the analysis using the software ShakeMap designed to provide the level of ground shaking experienced in a region using the data recorded by seismometers and strong motion instruments and seismological information regarding the attenuation of the wavefield with distance and the site characteristics. The Shakemaps are determined for research purposes to provide fast estimates of the level of ground shaking produced by the earthquake. The maps are calculated automatically and adjourned progressively as more data become available. See http://shakemap.rm.ingv.it/ for additional information.

The red star indicates the epicenter. The red triangles show the stations of the INGV Italian National Seismic Network and the blue triangles those of the Nationa Accelerometric Network of the Dipartimento della Protezione Civile.

Intensity Shakemap

Intensity Shakemap

This map shows the distribution of the istrumentally derived intensities. To this purpose, it is used a conversion relation between ground acceleration and velocity, and the Mercalli Modificata (MMI - Modified Mercalli Intensity) scale. In general, the Mercalli intensity scale relies on the effects that the ground shaking produces as reported by an observer.
Peak ground acceleration Shakemap

Peak ground acceleration Shakemap

This map shows This map shows the distribution of peak ground acceleration expressed as per cent of the acceleration of gravity (i.e., g = 9.81 m/s²).
Peak velocity Shakemap

Peak velocity Shakemap

This map shows the distribution of peak ground velocities expressed in cm/s.
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
mb 5.7
Mwp 7.2

Mwpd 7.3
2021-09-08
01:47:49
17.1633 -99.646 20 2021-09-08
02:03:47
Sala Sismica INGV-Roma 95176151
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-08 01:47:49
Latitude 17.1633
Longitude -99.6460
Depth (km) 20 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 95176151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 18493
Semi-minor axis of confidence ellipse (meter) 2299
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 37
Circular confidence region, given by single value of horizontal uncertainty (meter) 14992
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 181.013
Number of associated phases, regardless of their use for origin computation 78
Number of defining phases 78
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.07027
Epicentral distance of station closest to the epicenter (degree) 2.21139
Epicentral distance of station farthest from the epicenter (degree) 46.78984
Number of stations at which the event was observed 76
Number of stations from which data was used for origin computation 76
Magnitudes information

Mwp:7.2

Field Value
Value 7.2
Uncertainty 0.1
Num. used stations 67
Type of magnitude Mwp
Reference to an origin 95176151
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-09-08 02:03:47

Mwpd:7.3

Field Value
Value 7.3
Uncertainty 0.1
Num. used stations 61
Type of magnitude Mwpd
Reference to an origin 95176151
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-09-08 02:03:47

mb:5.7

Field Value
Value 5.7
Uncertainty 0.1
Num. used stations 68
Type of magnitude mb
Reference to an origin 95176151
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-09-08 02:03:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
CX.MNMCX.BHZ. 2021-09-08T01:56:14.50 10.0 positive automatic P 140 46.7898 -2.22436 0.48385
GT.LPAZ.BHZ.00 2021-09-08T01:56:04.65 10.0 positive automatic P 135 45.6447 -3.4953 0.642405
CN.BBB.BHZ. 2021-09-08T01:55:35.30 10.0 positive automatic P 334 41.5716 0.784429 0.584976
II.FFC.BHZ.00 2021-09-08T01:55:00.87 10.0 positive automatic P 358 37.603 -0.64005 0.794229
CU.GRGR.BHZ.00 2021-09-08T01:54:56.20 10.0 positive automatic P 93 37.0396 -0.510397 0.609545
US.NLWA.BHZ.00 2021-09-08T01:54:49.83 10.0 positive automatic P 332 36.1873 0.307268 0.78523
US.LBNH.BHZ.00 2021-09-08T01:54:46.43 10.0 positive automatic P 35 35.7228 0.931125 0.822258
IU.BBSR.BHZ.00 2021-09-08T01:54:40.10 10.0 positive automatic P 58 34.9693 1.13965 0.733875
IU.HRV.BHZ.00 2021-09-08T01:54:38.52 10.0 positive automatic P 37 34.833 0.713489 0.850252
CN.GAC.BHZ. 2021-09-08T01:54:38.23 10.0 negative automatic P 30 34.9139 -0.25935 0.810016
US.LONY.BHZ.00 2021-09-08T01:54:35.55 10.0 positive automatic P 32 34.5794 -0.109851 0.865784
US.NEW.BHZ.00 2021-09-08T01:54:31.53 10.0 positive automatic P 339 34.2171 -1.04916 0.814486
IU.COR.BHZ.00 2021-09-08T01:54:29.60 10.0 positive automatic P 329 33.8542 0.280951 0.85026
US.HAWA.BHZ.00 2021-09-08T01:54:25.73 10.0 positive automatic P 335 33.5515 -0.999195 0.84658
US.BINY.BHZ.00 2021-09-08T01:54:15.03 10.0 positive automatic P 34 32.1608 0.441374 0.827314
US.EGMT.BHZ.00 2021-09-08T01:54:12.50 10.0 positive automatic P 347 31.9501 -0.325561 0.735473
US.MSO.BHZ.00 2021-09-08T01:54:12.08 10.0 positive automatic P 341 31.9295 -0.605624 0.933243
IU.SJG.BHZ.00 2021-09-08T01:54:11.92 10.0 positive automatic P 83 31.8908 -0.274845 0.934088
US.DGMT.BHZ.00 2021-09-08T01:54:09.05 10.0 positive automatic P 354 31.525 0.034979 0.877854
US.EYMN.BHZ.00 2021-09-08T01:54:07.73 10.0 positive automatic P 10 31.4978 -1.02142 0.920238
US.BMO.BHZ.00 2021-09-08T01:54:07.28 10.0 positive automatic P 336 31.3976 -0.706358 0.911531
US.AGMN.BHZ.00 2021-09-08T01:54:06.15 10.0 positive automatic P 5 31.2862 -0.712719 0.903264
US.WVOR.BHZ.00 2021-09-08T01:54:00.33 10.0 negative automatic P 331 30.0109 4.5453 0.869521
US.BOZ.BHZ.00 2021-09-08T01:53:57.18 10.0 positive automatic P 343 30.1389 0.222253 0.876505
IU.SSPA.BHZ.00 2021-09-08T01:53:56.45 10.0 positive automatic P 34 30.0481 0.522158 0.951522
US.LAO.BHZ.00 2021-09-08T01:53:55.18 10.0 positive automatic P 351 30.0216 -0.62305 0.908821
US.ERPA.BHZ.00 2021-09-08T01:53:55.63 10.0 positive automatic P 30 30.0768 -0.556378 0.840793
BK.MCCM.BHZ.00 2021-09-08T01:53:49.22 10.0 positive automatic P 321 29.2183 0.695578 0.851064
US.HLID.BHZ.00 2021-09-08T01:53:48.78 10.0 positive automatic P 338 29.2075 0.0401253 0.898876
US.LKWY.BHZ.00 2021-09-08T01:53:46.73 10.0 positive automatic P 344 28.8536 1.01814 0.888889
US.CBN.BHZ.00 2021-09-08T01:53:44.65 10.0 positive automatic P 38 28.6799 0.894459 0.930233
US.AAM.BHZ.00 2021-09-08T01:53:42.78 10.0 positive automatic P 25 28.6028 -0.312297 0.898876
BK.CMB.BHZ.00 2021-09-08T01:53:34.85 10.0 positive automatic P 323 27.6718 -0.0265028 0.952381
US.AHID.BHZ.00 2021-09-08T01:53:32.10 10.0 positive automatic P 342 27.395 -0.514099 0.465116
CU.GRTK.BHZ.00 2021-09-08T01:53:32.67 10.0 positive automatic P 76 27.2131 2.02795 0.898876
US.ELK.BHZ.00 2021-09-08T01:53:30.68 10.0 positive automatic P 333 27.1444 0.273072 0.941176
CU.SDDR.BHZ.00 2021-09-08T01:53:30.43 10.0 positive automatic P 82 26.9907 1.68578 0.888889
IU.RSSD.BHZ.00 2021-09-08T01:53:30.95 10.0 positive automatic P 353 27.2099 -0.0267479 0.952381
US.ACSO.BHZ.00 2021-09-08T01:53:30.05 10.0 positive automatic P 29 27.2006 -0.526638 0.879121
US.BW06.BHZ.00 2021-09-08T01:53:28.20 10.0 positive automatic P 344 26.9572 -0.519689 0.930233
IU.OTAV.BHZ.00 2021-09-08T01:53:27.12 10.0 positive automatic P 127 26.8668 -1.00817 0.888889
US.ECSD.BHZ.00 2021-09-08T01:53:25.28 10.0 positive automatic P 5 26.6927 -0.763609 0.97561
US.HWUT.BHZ.00 2021-09-08T01:53:24.43 10.0 positive automatic P 340 26.4948 -0.0642572 0.941176
US.BLA.BHZ.00 2021-09-08T01:53:22.58 10.0 positive automatic P 36 26.2365 0.625703 0.91954
US.DUG.BHZ.00 2021-09-08T01:53:17.60 10.0 positive automatic P 336 25.6958 0.402386 0.952381
US.HDIL.BHZ.00 2021-09-08T01:53:10.45 10.0 positive automatic P 19 25.0421 -0.591533 0.941176
US.TPNV.BHZ.00 2021-09-08T01:53:08.25 10.0 positive automatic P 327 24.6137 0.868746 0.952381
US.TZTN.BHZ.00 2021-09-08T01:53:01.88 10.0 positive automatic P 33 24.042 -0.0857454 0.941176
US.OGNE.BHZ.00 2021-09-08T01:52:59.98 10.0 positive automatic P 356 23.8695 -0.527232 0.860215
CU.GTBY.BHZ.00 2021-09-08T01:52:56.87 10.0 positive automatic P 79 23.4026 0.920229 0.952381
US.ISCO.BHZ.00 2021-09-08T01:52:53.83 10.0 positive automatic P 348 23.2204 -0.664592 0.941176
IM.TKL.BHZ. 2021-09-08T01:52:53.52 10.0 positive automatic P 34 23.2542 -0.916063 0.930233
II.PFO.BHZ.00 2021-09-08T01:52:44.92 10.0 positive automatic P 321 22.3186 0.221947 0.941176
IU.CCM.BHZ.00 2021-09-08T01:52:41.75 10.0 positive automatic P 18 22.1523 -0.993479 0.930233
US.KSU1.BHZ.00 2021-09-08T01:52:41.20 10.0 positive automatic P 6 22.0957 -0.949381 0.941176
US.GOGA.BHZ.00 2021-09-08T01:52:38.78 10.0 positive automatic P 39 21.8012 -0.197831 0.952381
US.CBKS.BHZ.00 2021-09-08T01:52:36.63 10.0 positive automatic P 360 21.6499 -0.820059 0.909091
IU.WVT.BHZ.00 2021-09-08T01:52:36.37 10.0 positive automatic P 27 21.6642 -1.14315 0.963855
US.MVCO.BHZ.00 2021-09-08T01:52:35.68 10.0 positive automatic P 340 21.4984 -0.400689 0.733945
US.SDCO.BHZ.00 2021-09-08T01:52:33.28 10.0 positive automatic P 347 21.2145 0.186172 0.941176
CU.MTDJ.BHZ.00 2021-09-08T01:52:32.30 10.0 positive automatic P 84 21.0786 0.95294 0.909091
US.WUAZ.BHZ.00 2021-09-08T01:52:31.50 10.0 positive automatic P 333 21.1083 -0.280992 0.898876
IU.DWPF.BHZ.00 2021-09-08T01:52:20.40 10.0 positive automatic P 54 20.0179 0.705463 0.930233
US.LRAL.BHZ.00 2021-09-08T01:52:15.10 10.0 positive automatic P 33 19.5378 0.627924 0.869565
IU.ANMO.BHZ.00 2021-09-08T01:52:07.37 10.0 positive automatic P 342 18.7911 0.785753 0.963855
IU.TUC.BHZ.00 2021-09-08T01:52:02.50 10.0 negative automatic P 328 18.1851 -2.76535 0
US.MIAR.BHZ.00 2021-09-08T01:51:59.50 10.0 positive automatic P 16 18.2084 -0.253595 0.888889
US.BRAL.BHZ.00 2021-09-08T01:51:56.28 10.0 positive automatic P 37 18.084 -1.92471 0.610687
US.VBMS.BHZ.00 2021-09-08T01:51:45.35 10.0 positive automatic P 27 17.1681 -1.50954 0.761905
G.HDC.BHZ.00 2021-09-08T01:51:42.30 10.0 positive automatic P 113 16.6987 1.13808 0.930233
II.JTS.BHZ.00 2021-09-08T01:51:30.27 10.0 positive automatic P 114 15.8303 0.353116 0.909091
US.NATX.BHZ.00 2021-09-08T01:51:22.80 10.0 positive automatic P 16 15.2788 0.0955369 0.869565
GE.BOAB.BHZ. 2021-09-08T01:51:09.25 10.0 positive automatic P 107 14.3073 -0.410017 0.833333
IU.HKT.BHZ.00 2021-09-08T01:50:55.15 10.0 positive automatic P 15 13.2622 -0.110934 0.740741
CU.TGUH.BHZ.00 2021-09-08T01:50:41.73 10.0 positive automatic P 103 12.3109 -0.802757 0.43956
G.UNM.BHZ.00 2021-09-08T01:48:26.85 10.0 positive automatic P 12 2.2114 2.70751 0.930233
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download