Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Mwp 6.0 on date 03-12-2021 and time 04:40:09 (UTC) in region Chile [Sea]

A magnitude Mwp 6.0 earthquake occured in region: Chile [Sea], on

  • 03-12-2021 04:40:09 (UTC)
  • 03-12-2021 05:40:09 (UTC +01:00) Italian time
  • 02-12-2021 23:40:09 (UTC -05:00) local time in the region of the earthquake (Pacific/Easter)

and geographic coordinates (lat, lon) -27.9770, -112.0450 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.

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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
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		mb 5.2
Mwp 6.0
Mwpd 6.1 		2021-12-03
04:40:09		 -27.9773 -112.045 20 2021-12-03
05:04:05		 Sala Sismica INGV-Roma 98080711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-03 04:40:09
Latitude -27.9773
Longitude -112.0450
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 98080711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 19638
Semi-minor axis of confidence ellipse (meter) 5653
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 46
Circular confidence region, given by single value of horizontal uncertainty (meter) 16131.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 136.09
Number of associated phases, regardless of their use for origin computation 56
Number of defining phases 56
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.16041
Epicentral distance of station closest to the epicenter (degree) 2.45355
Epicentral distance of station farthest from the epicenter (degree) 143.86466
Number of stations at which the event was observed 55
Number of stations from which data was used for origin computation 55
Magnitudes information

Mwpd:6.1

Field Value
Value 6.1
Uncertainty 0.0
Num. used stations 9
Type of magnitude Mwpd
Reference to an origin 98080711
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-12-03 05:04:05

Mwp:6.0

Field Value
Value 6.0
Uncertainty 0.1
Num. used stations 11
Type of magnitude Mwp
Reference to an origin 98080711
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-12-03 05:04:05

mb:5.2

Field Value
Value 5.2
Uncertainty 0.1
Num. used stations 51
Type of magnitude mb
Reference to an origin 98080711
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-12-03 05:04:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IU.ULN.BHZ.00 2021-12-03T04:59:38.42 10.0 positive automatic PKPdf 314 143.8647 -3.18406 0
AU.MAW.BHZ. 2021-12-03T04:52:33.55 10.0 negative automatic P 178 84.3387 -4.6249 0
US.LONY.BHZ.00 2021-12-03T04:52:16.70 10.0 negative automatic P 26 80.2408 -0.111372 0.166791
US.EYMN.BHZ.00 2021-12-03T04:52:04.45 10.0 negative automatic P 14 78.1333 -0.84484 0.176071
US.NEW.BHZ.00 2021-12-03T04:51:55.03 10.0 negative automatic P 357 76.3742 -0.451842 0.205562
US.HAWA.BHZ.00 2021-12-03T04:51:45.65 10.0 negative automatic P 355 74.6754 -0.0199646 0.217828
US.BOZ.BHZ.00 2021-12-03T04:51:39.35 10.0 negative automatic P 0 73.5721 -0.0894262 0
US.RLMT.BHZ.00 2021-12-03T04:51:36.08 10.0 negative automatic P 2 73.1401 -0.901231 0.241974
US.BMO.BHZ.00 2021-12-03T04:51:35.53 10.0 negative automatic P 356 72.9848 -0.37427 0.240838
US.ECSD.BHZ.00 2021-12-03T04:51:35.43 10.0 positive automatic P 12 73.0905 -0.981364 0.248359
US.HDIL.BHZ.00 2021-12-03T04:51:28.08 10.0 negative automatic P 18 71.7110 -0.0595651 0.238197
US.BLA.BHZ.00 2021-12-03T04:51:27.78 10.0 negative automatic P 26 71.6244 0.0882781 0.239099
US.HLID.BHZ.00 2021-12-03T04:51:26.98 10.0 positive automatic P 358 71.5697 -0.579236 0.23967
US.WVOR.BHZ.00 2021-12-03T04:51:22.08 10.0 positive automatic P 355 70.6700 0.046297 0.257549
US.BW06.BHZ.00 2021-12-03T04:51:21.10 10.0 positive automatic P 2 70.7780 -1.73905 0.268427
US.AHID.BHZ.00 2021-12-03T04:51:21.28 10.0 negative automatic P 1 70.7450 -1.31728 0.259642
US.TZTN.BHZ.00 2021-12-03T04:51:16.43 10.0 positive automatic P 24 69.8626 -0.495257 0.257815
US.HWUT.BHZ.00 2021-12-03T04:51:14.70 10.0 negative automatic P 0 69.5826 -0.747859 0.266651
IM.TKL.BHZ. 2021-12-03T04:51:11.19 10.0 negative automatic P 24 68.9893 -0.320279 0.267353
US.ELK.BHZ.00 2021-12-03T04:51:10.15 10.0 positive automatic P 357 68.7830 -0.40467 0.261117
IU.CCM.BHZ.00 2021-12-03T04:51:09.82 10.0 positive automatic P 17 68.8422 -0.760532 0.274954
US.DUG.BHZ.00 2021-12-03T04:51:06.80 10.0 negative automatic P 359 68.1731 0.184336 0.29571
US.ISCO.BHZ.00 2021-12-03T04:51:06.13 10.0 negative automatic P 5 68.0381 0.141743 0.27794
IU.WVT.BHZ.00 2021-12-03T04:51:04.40 10.0 positive automatic P 21 68.0386 -1.14871 0.297324
US.GOGA.BHZ.00 2021-12-03T04:50:59.33 10.0 positive automatic P 26 67.1014 -0.293362 0.323756
BK.CMB.BHZ.00 2021-12-03T04:50:55.50 10.0 positive automatic P 353 66.4697 -0.192293 0.280594
US.SDCO.BHZ.00 2021-12-03T04:50:52.60 10.0 positive automatic P 6 66.0056 -0.438672 0.311403
US.OXF.BHZ.00 2021-12-03T04:50:52.05 10.0 positive automatic P 20 66.0519 -0.859019 0.310844
NN.PRN.HHZ. 2021-12-03T04:50:49.78 10.0 positive automatic P 357 65.4418 0.575292 0.151309
BK.SAO.BHZ.00 2021-12-03T04:50:49.35 10.0 positive automatic P 352 65.3392 0.998927 0.323145
US.LRAL.BHZ.00 2021-12-03T04:50:49.50 10.0 positive automatic P 23 65.4823 0.262288 0.317764
US.MVCO.BHZ.00 2021-12-03T04:50:47.90 10.0 positive automatic P 3 65.2593 -0.249728 0.320494
US.TPNV.BHZ.00 2021-12-03T04:50:47.95 10.0 negative automatic P 356 65.0434 1.30186 0
US.MIAR.BHZ.00 2021-12-03T04:50:44.03 10.0 positive automatic P 17 64.9138 -1.54099 0.352468
US.AMTX.BHZ.00 2021-12-03T04:50:36.80 10.0 positive automatic P 9 63.6167 -0.403471 0.33347
US.WUAZ.BHZ.00 2021-12-03T04:50:36.85 10.0 positive automatic P 1 63.4946 0.35222 0.358629
IU.DWPF.BHZ.00 2021-12-03T04:50:35.10 10.0 negative automatic P 30 63.2942 0.197316 0.365595
IU.ANMO.BHZ.00 2021-12-03T04:50:34.12 10.0 positive automatic P 5 63.1416 -0.0783361 0.335687
II.PFO.BHZ.00 2021-12-03T04:50:25.52 10.0 negative automatic P 356 61.7272 0.873812 0.378037
IU.TUC.BHZ.00 2021-12-03T04:50:15.17 10.0 positive automatic P 1 60.2963 0.297982 0.380005
IU.HKT.BHZ.00 2021-12-03T04:50:13.20 10.0 positive automatic P 16 59.9698 0.794345 0.402234
US.MNTX.BHZ.00 2021-12-03T04:50:12.28 10.0 positive automatic P 7 60.0095 -0.539802 0.352494
US.JCT.BHZ.00 2021-12-03T04:50:09.30 10.0 positive automatic P 12 59.6106 -0.805095 0.421992
MX.TLIG.BHZ. 2021-12-03T04:48:42.73 10.0 positive automatic P 18 47.3709 2.35648 0.558701
II.JTS.BHZ.00 2021-12-03T04:48:35.32 10.0 positive automatic P 38 46.3854 2.78866 0.533892
IU.OTAV.BHZ.00 2021-12-03T04:48:06.67 10.0 positive automatic P 55 42.8022 2.19984 0.64795
GT.LPAZ.BHZ.00 2021-12-03T04:48:00.38 10.0 positive automatic P 83 42.0762 0.832365 0.660604
CX.MNMCX.BHZ. 2021-12-03T04:47:39.60 10.0 negative automatic P 87 39.6982 0.842188 0.687635
WA.ZON.HHZ. 2021-12-03T04:47:20.38 10.0 negative automatic P 106 37.5661 -0.216148 0.741964
G.COYC.BHZ.00 2021-12-03T04:47:07.30 10.0 positive automatic P 130 36.0157 -0.00106874 0.806886
GT.PLCA.BHZ.00 2021-12-03T04:47:06.63 10.0 negative automatic P 122 36.1586 -2.03984 0.823203
C1.BO02.BHZ. 2021-12-03T04:47:03.22 10.0 positive automatic P 112 35.6235 -0.830279 0.761542
C.GO06.BHZ. 2021-12-03T04:47:02.43 10.0 positive automatic P 120 35.3201 0.921113 0.767195
II.RPN.BHZ.00 2021-12-03T04:40:47.77 10.0 positive automatic P 71 2.5487 0.0434395 0.97561
C1.VA02.BHZ. 2021-12-03T04:40:46.08 10.0 positive automatic P 71 2.4536 -0.331225 0.909091
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