Earthquake with magnitude of Mwp 6.2 on date 23-12-2020 and time 18:11:49 (UTC) in region Palau [Sea]

A magnitude Mwp 6.2 earthquake occured in region: Palau [Sea], on

  • 23-12-2020 18:11:49 (UTC)
  • 23-12-2020 19:11:49 (UTC +01:00) Italian time
  • 24-12-2020 03:11:49 (UTC +09:00) local time in the region of the earthquake (Pacific/Palau)

and geographic coordinates (lat, lon) 6.16, 133.62 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
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled 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 5.5
Mwp 6.2

Mwpd 6.3
2020-12-23
18:11:49
6.16 133.63 20 2020-12-23
18:27:30
Sala Sismica INGV-Roma 85657641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-23 18:11:49
Latitude 6.16
Longitude 133.63
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 85657641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 7982
Semi-minor axis of confidence ellipse (meter) 2092
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 101
Circular confidence region, given by single value of horizontal uncertainty (meter) 6653.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 65.0487
Number of associated phases, regardless of their use for origin computation 110
Number of defining phases 110
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.05163
Epicentral distance of station closest to the epicenter (degree) 8.04431
Epicentral distance of station farthest from the epicenter (degree) 98.89154
Number of stations at which the event was observed 110
Number of stations from which data was used for origin computation 110
Magnitudes information

Mwpd:6.3

Field Value
Value 6.3
Uncertainty 0.1
Num. used stations 69
Type of magnitude Mwpd
Reference to an origin 85657641
Agency INGV
Autore early-est_ee1.2.4
Time of creation (UTC) 2020-12-23 18:27:30

Mwp:6.2

Field Value
Value 6.2
Uncertainty 0.1
Num. used stations 67
Type of magnitude Mwp
Reference to an origin 85657641
Agency INGV
Autore early-est_ee1.2.4
Time of creation (UTC) 2020-12-23 18:27:30

mb:5.5

Field Value
Value 5.5
Uncertainty 0.1
Num. used stations 88
Type of magnitude mb
Reference to an origin 85657641
Agency INGV
Autore early-est_ee1.2.4
Time of creation (UTC) 2020-12-23 18:27:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
US.WVOR.BHZ.00 2020-12-23T18:25:29.78 10.0 positive automatic P 45 98.6926 2.21528 0.0880015
US.BMO.BHZ.00 2020-12-23T18:25:28.85 10.0 positive automatic P 43 98.8915 1.01682 0.0827236
BK.CMB.BHZ.00 2020-12-23T18:25:28.02 10.0 positive automatic P 50 98.6008 1.57324 0.0871281
US.NEW.BHZ.00 2020-12-23T18:25:24.25 10.0 positive automatic P 39 97.9399 0.756937 0.0872811
US.HAWA.BHZ.00 2020-12-23T18:25:20.28 10.0 positive automatic P 42 96.9475 0.978814 0.0911981
IU.KMBO.BHZ.00 2020-12-23T18:25:18.32 10.0 positive automatic P 270 96.4521 1.3405 0.059535
PL.SUW.BHZ. 2020-12-23T18:25:17.39 10.0 positive automatic P 326 96.7321 -0.551567 0.0894744
GE.DAG.BHZ. 2020-12-23T18:25:11.91 10.0 positive automatic P 354 95.5634 -0.317874 0.089593
GE.CSS.BHZ. 2020-12-23T18:25:07.55 10.0 positive automatic P 306 94.8238 -1.74002 0.043998
CN.RES.BHZ. 2020-12-23T18:25:05.35 10.0 positive automatic P 11 94.0362 -0.872908 0.0121166
GE.VSU.BHZ. 2020-12-23T18:25:01.70 10.0 positive automatic P 330 93.4187 -0.505545 0.0937541
KO.BNN.BHZ. 2020-12-23T18:24:57.26 10.0 positive automatic P 309 92.1462 0.127911 0.0773705
DK.NOR.BHZ. 2020-12-23T18:24:52.15 10.0 positive automatic P 356 91.1414 0.0582235 0.0492491
G.ATD.BHZ.00 2020-12-23T18:24:46.85 10.0 positive automatic P 282 89.5266 0.578934 0.129449
IU.KEV.BHZ.00 2020-12-23T18:24:45.87 10.0 positive automatic P 341 89.8698 -0.3188 0.103661
GE.VOI.BHZ. 2020-12-23T18:24:44.45 10.0 positive automatic P 248 89.4624 -0.227148 0.200929
II.ABPO.BHZ.00 2020-12-23T18:24:41.47 10.0 positive automatic P 251 88.6131 0.043832 0.106623
US.WRAK.BHZ.00 2020-12-23T18:24:35.55 10.0 positive automatic P 34 87.0896 2.38455 0.110386
KO.GURO.HHZ. 2020-12-23T18:24:35.91 10.0 positive automatic P 309 87.4048 0.985873 0.144178
II.KIV.BHZ.00 2020-12-23T18:24:29.82 10.0 positive automatic P 314 86.4014 -0.822988 0.11009
II.RAYN.BHZ.00 2020-12-23T18:24:27.95 10.0 positive automatic P 293 85.8289 0.872647 0.116359
AT.SKAG.BHZ. 2020-12-23T18:24:25.90 10.0 positive automatic P 31 85.2272 0.848285 0.110632
IU.GNI.BHZ.00 2020-12-23T18:24:25.32 10.0 positive automatic P 310 85.1813 -0.276813 0.128137
CN.INK.BHZ. 2020-12-23T18:24:23.88 10.0 positive automatic P 22 85.3289 -0.564043 0.113667
GT.VNDA.BHZ.00 2020-12-23T18:24:22.63 10.0 positive automatic P 174 85.1406 -1.21189 0.0459243
G.RER.BHZ.00 2020-12-23T18:24:05.10 10.0 positive automatic P 247 81.0306 0.821073 0.127512
IU.COLA.BHZ.00 2020-12-23T18:23:54.05 10.0 positive automatic P 25 79.5592 0.00193159 0.130752
II.ARTI.BHZ.00 2020-12-23T18:23:37.22 10.0 positive automatic P 327 76.7278 -1.50735 0.160639
II.KDAK.BHZ.00 2020-12-23T18:23:36.02 10.0 positive automatic P 32 76.1878 -0.0461071 0.145935
II.UOSS.BHZ.00 2020-12-23T18:23:34.52 10.0 positive automatic P 294 76.0184 0.0674662 0.240514
IU.CASY.BHZ.00 2020-12-23T18:23:23.67 10.0 positive automatic P 189 74.3476 -1.25993 0.206223
G.ROCAM.BHZ.00 2020-12-23T18:23:23.35 10.0 positive automatic P 247 73.7445 1.84054 0.0727483
AK.TNA.BHZ. 2020-12-23T18:23:10.59 10.0 positive automatic P 22 71.7641 0.698545 0.16333
IU.RAR.BHZ.00 2020-12-23T18:23:06.65 10.0 positive automatic P 115 70.7715 1.59063 0.165241
G.AIS.BHZ.00 2020-12-23T18:22:49.35 10.0 positive automatic P 225 68.0984 2.1307 0.180545
AT.AKUT.BHZ. 2020-12-23T18:22:47.84 10.0 positive automatic P 33 68.1069 0.608697 0.173248
IU.BILL.BHZ.00 2020-12-23T18:22:30.42 10.0 positive automatic P 13 65.6945 -0.936489 0.09931
IU.TIXI.BHZ.00 2020-12-23T18:22:28.87 10.0 positive automatic P 358 65.5433 -1.15294 0.182186
II.AAK.BHZ.00 2020-12-23T18:22:17.67 10.0 positive automatic P 315 63.3879 0.453387 0.219111
AK.ATKA.BHZ. 2020-12-23T18:22:12.57 10.0 positive automatic P 33 62.7132 0.323004 0.21388
II.NIL.BHZ.00 2020-12-23T18:22:08.42 10.0 positive automatic P 305 62.0431 0.191204 0.294867
NZ.ODZ.HHZ.10 2020-12-23T18:22:02.02 10.0 positive automatic P 151 60.9843 0.955207 0.219016
NZ.KHZ.HHZ.10 2020-12-23T18:21:57.50 10.0 positive automatic P 147 60.613 -0.200284 0.240184
NZ.URZ.HHZ.10 2020-12-23T18:21:54.58 10.0 positive automatic P 141 59.9956 0.190896 0.116849
IU.MAKZ.BHZ.00 2020-12-23T18:21:53.62 10.0 positive automatic P 322 59.9696 0.404833 0.398995
IU.YAK.BHZ.00 2020-12-23T18:21:23.82 10.0 positive automatic P 358 55.9491 -1.0843 0.32702
GE.HALK.BHZ. 2020-12-23T18:21:02.40 10.0 positive automatic P 273 52.6174 0.616481 0.142905
GE.MALK.BHZ. 2020-12-23T18:21:02.77 10.0 positive automatic P 276 52.6642 0.575229 0.142651
II.PALK.BHZ.00 2020-12-23T18:21:01.95 10.0 positive automatic P 274 52.541 0.557671 0.248422
II.TLY.BHZ.00 2020-12-23T18:20:55.42 10.0 positive automatic P 337 51.8196 -0.231781 0.423492
II.TAU.BHZ.00 2020-12-23T18:20:46.47 10.0 positive automatic P 167 50.6157 -0.0343231 0.319394
II.MSVF.BHZ.00 2020-12-23T18:20:45.02 10.0 positive automatic P 119 49.9402 1.88566 0.343717
IU.ULN.BHZ.00 2020-12-23T18:20:21.82 10.0 positive automatic P 336 47.4602 -0.358921 0.534349
ND.MARNC.BHZ.00 2020-12-23T18:19:55.45 10.0 positive automatic P 130 43.6075 2.56501 0.430318
G.CAN.BHZ.00 2020-12-23T18:19:54.50 10.0 positive automatic P 162 43.9245 -0.492694 0.424128
AU.RIV.BHZ. 2020-12-23T18:19:50.45 10.0 positive automatic P 159 43.2924 0.187189 0.446759
IU.NWAO.BHZ.00 2020-12-23T18:19:37.72 10.0 positive automatic P 201 42.0678 -0.919682 0.484414
IU.YSS.BHZ.00 2020-12-23T18:19:33.55 10.0 positive automatic P 9 41.55 -0.958906 0.497093
AU.ARMA.BHZ. 2020-12-23T18:19:26.22 10.0 positive automatic P 156 40.4365 -0.498514 0.524294
G.SANVU.BHZ.00 2020-12-23T18:19:21.55 10.0 positive automatic P 123 39.6581 1.00193 0.532405
AU.HTT.BHZ. 2020-12-23T18:19:20.35 10.0 positive automatic P 173 39.9021 -0.954901 0.761787
JP.JKA.BHZ. 2020-12-23T18:19:12.35 10.0 positive automatic P 10 38.7666 0.412518 0.586668
AU.MORW.BHZ. 2020-12-23T18:19:12.57 10.0 positive automatic P 205 39.0756 -1.40309 0.725987
AU.FORT.BHZ.00 2020-12-23T18:18:58.18 10.0 positive automatic P 188 37.3156 -1.51566 0.803009
GE.GSI.BHZ. 2020-12-23T18:18:50.47 10.0 positive automatic P 264 36.2842 0.26434 0.835438
IU.CHTO.BHZ.00 2020-12-23T18:18:49.50 10.0 positive automatic P 294 36.0498 0.575224 0.602309
AU.EIDS.BHZ. 2020-12-23T18:18:46.97 10.0 positive automatic P 152 35.8008 0.253004 0.661014
JP.JTM.BHZ. 2020-12-23T18:18:41.40 10.0 positive automatic P 10 35.2658 -0.23852 0.720954
PS.PSI.BHZ. 2020-12-23T18:18:38.41 10.0 positive automatic P 266 34.7609 1.22822 0.992951
AU.GIRL.BHZ.00 2020-12-23T18:18:35.18 10.0 positive automatic P 213 34.4846 -0.2494 0.696064
AU.QLP.BHZ. 2020-12-23T18:18:32.72 10.0 positive automatic P 163 34.3148 -1.09147 0.749043
GE.BKNI.BHZ. 2020-12-23T18:18:22.52 10.0 positive automatic P 261 33.0349 -0.171579 0.375437
MY.KUM.BHZ. 2020-12-23T18:18:21.67 10.0 positive automatic P 270 32.8169 0.569022 0.923719
RM.SLV.BHZ. 2020-12-23T18:18:18.67 10.0 positive automatic P 301 32.5042 -0.152814 0.393825
MY.IPM.BHZ. 2020-12-23T18:18:18.67 10.0 positive automatic P 269 32.4964 0.781389 1.0443
GE.MNAI.BHZ. 2020-12-23T18:18:16.17 10.0 positive automatic P 252 32.3765 -0.683226 0.446115
AU.WRKA.BHZ.00 2020-12-23T18:18:08.73 10.0 positive automatic P 189 31.6201 -1.76747 1.03113
IU.MAJO.BHZ.00 2020-12-23T18:18:01.37 10.0 positive automatic P 7 30.6759 0.0623981 0.889899
IU.MBWA.BHZ.00 2020-12-23T18:17:59.37 10.0 positive automatic P 206 30.528 -0.984215 0.878127
JP.JGF.BHZ. 2020-12-23T18:17:50.70 10.0 positive automatic P 6 29.6457 -2.03656 0.468725
G.INU.BHZ.00 2020-12-23T18:17:49.56 10.0 positive automatic P 6 29.3604 -0.707132 0.984944
IU.CTAO.BHZ.00 2020-12-23T18:17:48.02 10.0 positive automatic P 155 29.0332 -0.166362 1.04154
JP.JTU.BHZ. 2020-12-23T18:17:42.50 10.0 positive automatic P 353 28.6381 -2.26321 0.615385
GE.SMRI.BHZ. 2020-12-23T18:17:27.42 10.0 positive automatic P 241 26.6349 0.0733892 0.769231
II.WRAB.BHZ.00 2020-12-23T18:17:19.95 10.0 positive automatic P 178 26.0983 -0.360639 1.24709
RM.DLV.BHZ. 2020-12-23T18:17:17.92 10.0 positive automatic P 285 25.481 1.08695 0.482757
JP.JSU.BHZ. 2020-12-23T18:17:14.30 10.0 positive automatic P 354 25.5257 -1.95353 0.683546
AU.FITZ.BHZ. 2020-12-23T18:17:13.98 10.0 positive automatic P 198 25.5049 -1.09656 1.30538
GE.JAGI.BHZ. 2020-12-23T18:17:04.62 10.0 positive automatic P 233 24.3075 -0.437736 0.962183
JP.JCJ.BHZ. 2020-12-23T18:16:47.40 10.0 positive automatic P 20 22.4662 0.860725 0.769231
IU.TATO.BHZ.00 2020-12-23T18:16:43.52 10.0 positive automatic P 330 22.1135 0.148952 0.43956
JP.JOW.BHZ. 2020-12-23T18:16:35.25 10.0 positive automatic P 347 21.2981 0.140645 0.855932
AU.RABL.BHZ.00 2020-12-23T18:16:35.05 10.0 positive automatic P 119 21.205 1.81129 1.1589
JP.YOJ.BHZ. 2020-12-23T18:16:32.55 10.0 positive automatic P 332 20.9512 1.69755 0.955461
AU.MTN.BHZ.00 2020-12-23T18:16:10.70 10.0 positive automatic P 187 19.1594 -0.276945 0.705402
AU.KDU.BHZ.00 2020-12-23T18:16:07.50 10.0 positive automatic P 183 18.8767 -0.367611 1.38994
GE.MMRI.BHZ. 2020-12-23T18:16:06.62 10.0 positive automatic P 218 18.6456 1.06258 1.19513
GE.SOEI.BHZ. 2020-12-23T18:16:02.92 10.0 positive automatic P 210 18.4407 -1.06784 1.0078
GE.BKB.BHZ. 2020-12-23T18:16:02.87 10.0 positive automatic P 247 18.2038 0.12303 0.951776
II.KAPI.BHZ.00 2020-12-23T18:15:55.97 10.0 positive automatic P 231 17.793 0.12132 0.898876
MY.KKM.BHZ. 2020-12-23T18:15:50.82 10.0 positive automatic P 271 17.3109 0.89731 1.20627
AU.MANU.BHZ.00 2020-12-23T18:15:32.85 10.0 positive automatic P 120 15.9826 0.343862 0.888889
GE.SAUI.BHZ. 2020-12-23T18:15:12.12 10.0 positive automatic P 189 14.327 0.629691 0.496126
GE.LUWI.BHZ. 2020-12-23T18:14:52.02 10.0 positive automatic P 237 13.0078 -0.997074 0.461483
GE.BNDI.BHZ. 2020-12-23T18:14:31.82 10.0 positive automatic P 199 11.3056 1.72167 0.527657
GE.SANI.BHZ. 2020-12-23T18:14:27.62 10.0 positive automatic P 223 11.2014 0.677215 1.30356
GE.GENI.BHZ. 2020-12-23T18:14:22.17 10.0 positive automatic P 143 10.9181 -2.92401 0.164416
GE.FAKI.BHZ. 2020-12-23T18:14:01.57 10.0 positive automatic P 189 9.1782 1.22949 1.31541
GE.TNTI.BHZ. 2020-12-23T18:13:48.42 10.0 positive automatic P 229 8.2451 0.700865 0.704702
IU.DAV.BHZ.00 2020-12-23T18:13:42.67 10.0 positive automatic P 277 8.0443 -1.74086 0.769231
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download