Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Mwp 6.1 on date 16-01-2023 and time 04:49:52 (UTC) in region Japan [Sea]

A magnitude Mwp 6.1 earthquake occured in region: Japan [Sea], on

  • 16-01-2023 04:49:52 (UTC)
  • 16-01-2023 05:49:52 (UTC +01:00) Italian time
  • 16-01-2023 13:49:52 (UTC +09:00) local time in the region of the earthquake (Asia/Tokyo)

and geographic coordinates (lat, lon) 28.8810, 139.4780 at 410 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 5.5
Mwp 6.1
Mwpd 6.3 		2023-01-16
04:49:52		 28.8809 139.478 410 2023-01-16
05:04:53		 Sala Sismica INGV-Roma 113571621
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-16 04:49:52
Latitude 28.8809
Longitude 139.4780
Depth (km) 410 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 113571621

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 6503
Semi-minor axis of confidence ellipse (meter) 3603
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 92
Circular confidence region, given by single value of horizontal uncertainty (meter) 5347.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 43.0603
Number of associated phases, regardless of their use for origin computation 96
Number of defining phases 96
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.51635
Epicentral distance of station closest to the epicenter (degree) 2.98245
Epicentral distance of station farthest from the epicenter (degree) 74.88500
Number of stations at which the event was observed 77
Number of stations from which data was used for origin computation 77
Magnitudes information

Mwpd:6.3

Field Value
Value 6.3
Uncertainty 0.2
Num. used stations 33
Type of magnitude Mwpd
Reference to an origin 113571621
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2023-01-16 05:04:53

Mwp:6.1

Field Value
Value 6.1
Uncertainty 0.2
Num. used stations 46
Type of magnitude Mwp
Reference to an origin 113571621
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2023-01-16 05:04:53

mb:5.5

Field Value
Value 5.5
Uncertainty 0.1
Num. used stations 59
Type of magnitude mb
Reference to an origin 113571621
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2023-01-16 05:04:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IU.COR.BHZ.00 2023-01-16T05:00:53.17 10.0 positive automatic P 47 74.8850 3.86326 0.218129
GE.LUWI.BHZ. 2023-01-16T05:00:46.27 10.0 negative automatic S 211 33.9260 -6.14201 0
GE.DAG.BHZ. 2023-01-16T05:00:41.52 10.0 positive automatic P 355 73.4850 0.205393 0
US.NLWA.BHZ.00 2023-01-16T05:00:43.15 10.0 positive automatic P 45 73.3298 2.62727 0.245634
GE.SANI.BHZ. 2023-01-16T05:00:40.97 10.0 positive automatic S 205 33.5232 -5.30818 0
IU.INCN.BHZ.00 2023-01-16T05:00:36.72 10.0 negative automatic ScP 312 13.7473 0.707183 0
NZ.OUZ.HHZ.10 2023-01-16T05:00:32.59 10.0 negative automatic P 151 71.7160 1.56451 0.263276
G.INU.BHZ.00 2023-01-16T05:00:28.31 10.0 negative automatic ScP 343 6.7926 1.16583 0
IU.KEV.BHZ.00 2023-01-16T05:00:22.87 10.0 negative automatic P 340 70.2823 0.33558 0.277356
DK.NOR.BHZ. 2023-01-16T05:00:14.50 10.0 positive automatic P 356 68.8417 0.667313 0.281152
GE.KAAM.BHZ. 2023-01-16T05:00:17.27 10.0 negative automatic P 259 69.2938 0.694454 0.263952
AU.TOO.BHZ.00 2023-01-16T04:59:59.58 10.0 positive automatic P 175 66.6877 -1.09391 0.299781
AU.MILA.BHZ.00 2023-01-16T04:59:58.75 10.0 negative automatic P 172 66.5550 -1.11849 0
IN.MNC.HHZ. 2023-01-16T04:59:53.13 10.0 positive automatic P 266 65.4015 0.64741 0.312372
IU.NWAO.BHZ.00 2023-01-16T04:59:50.90 10.0 positive automatic P 200 65.3048 -1.04314 0.334928
G.CAN.BHZ.00 2023-01-16T04:59:48.45 10.0 positive automatic P 171 64.8210 -0.474538 0.315207
CN.ATLI.BHZ. 2023-01-16T04:59:44.60 10.0 positive automatic P 34 63.8148 2.0972 0.354323
AU.MORW.BHZ. 2023-01-16T04:59:30.35 10.0 positive automatic P 203 62.1232 -1.08145 0.390797
CN.EAGLY.BHZ. 2023-01-16T04:59:26.95 10.0 positive automatic P 27 61.2869 0.961561 0.388477
AU.FORT.BHZ.00 2023-01-16T04:59:19.80 10.0 negative automatic P 191 60.6409 -1.81429 0.392834
AU.ARMA.BHZ. 2023-01-16T04:59:19.30 10.0 negative automatic P 168 60.4173 -0.992217 0.386933
GE.HALK.BHZ. 2023-01-16T04:59:16.45 10.0 positive automatic P 260 59.8458 0.161672 0.423602
IU.POHA.BHZ.00 2023-01-16T04:59:15.77 10.0 negative automatic P 83 59.2214 3.36252 0.41755
US.EGAK.BHZ.00 2023-01-16T04:59:14.85 10.0 negative automatic P 29 59.6120 0.0976837 0.407181
II.PALK.BHZ.00 2023-01-16T04:59:12.37 10.0 negative automatic P 261 59.2403 0.0997742 0.394098
GE.MALK.BHZ. 2023-01-16T04:59:09.57 10.0 negative automatic P 262 58.8322 0.119805 0.40872
IO.EVN.BHZ. 2023-01-16T04:57:37.25 10.0 negative automatic P 282 45.9319 0.332691 0.622372
II.SIMI.BHZ.00 2023-01-16T04:59:03.57 10.0 negative automatic P 300 57.9721 -0.240952 0.435642
AU.GIRL.BHZ.00 2023-01-16T04:58:56.93 10.0 positive automatic P 208 56.9722 0.217091 0.435047
G.KIP.BHZ.00 2023-01-16T04:58:56.25 10.0 negative automatic P 82 56.4485 3.16543 0.469271
IN.SHL.HHZ. 2023-01-16T04:57:06.39 10.0 positive automatic P 277 42.1955 -0.451375 0.729784
AU.QLP.BHZ. 2023-01-16T04:58:45.52 10.0 negative automatic P 175 55.6494 -1.99358 0.439293
II.KAPI.BHZ.00 2023-01-16T04:56:39.30 10.0 negative automatic P 212 38.8411 -0.545407 0.384854
AU.WRKA.BHZ.00 2023-01-16T04:58:41.33 10.0 positive automatic P 192 54.9767 -1.52872 0.504323
II.KDAK.BHZ.00 2023-01-16T04:58:37.80 10.0 positive automatic P 37 54.2675 0.0393834 0.509538
IU.MBWA.BHZ.00 2023-01-16T04:58:31.07 10.0 negative automatic P 203 53.5396 -1.49872 0.508922
GE.BNDI.BHZ. 2023-01-16T04:56:03.72 10.0 negative automatic P 197 34.6467 -1.20346 0.551807
II.AAK.BHZ.00 2023-01-16T04:58:29.82 10.0 negative automatic P 304 53.1600 -0.273558 0.480651
G.SANVU.BHZ.00 2023-01-16T04:58:20.15 10.0 negative automatic P 145 51.7944 0.201895 0.47994
II.KURK.BHZ.00 2023-01-16T04:58:05.05 10.0 negative automatic P 314 49.9200 -1.15379 0.589198
IU.CTAO.BHZ.00 2023-01-16T04:58:01.87 10.0 positive automatic P 172 49.4017 -0.513164 0.583853
II.WRAB.BHZ.00 2023-01-16T04:57:57.85 10.0 positive automatic P 186 49.0617 -2.00012 0.589698
AU.FITZ.BHZ. 2023-01-16T04:57:57.45 10.0 positive automatic P 198 48.8460 -0.733497 0.579457
GE.GSI.BHZ. 2023-01-16T04:57:55.07 10.0 negative automatic P 243 48.5048 -0.551484 0.540705
GE.MNAI.BHZ. 2023-01-16T04:57:52.87 10.0 negative automatic P 233 48.3223 -1.39271 0.274771
IU.MAKZ.BHZ.00 2023-01-16T04:57:48.22 10.0 negative automatic P 309 47.6112 -0.755754 0.600491
GE.LHMI.BHZ. 2023-01-16T04:57:42.77 10.0 negative automatic P 248 46.6373 1.30738 0.583045
AK.GAMB.BHZ. 2023-01-16T04:57:42.33 10.0 negative automatic P 27 46.5221 1.74099 0.638894
MY.IPM.BHZ. 2023-01-16T04:57:19.42 10.0 negative automatic P 244 43.8322 -0.38105 0.64444
MY.KUM.BHZ. 2023-01-16T04:57:18.62 10.0 negative automatic P 245 43.6327 0.414756 0.678789
MY.KOM.BHZ. 2023-01-16T04:57:17.12 10.0 positive automatic P 238 43.4087 0.684781 0.66703
IU.TIXI.BHZ.00 2023-01-16T04:57:13.32 10.0 positive automatic P 355 43.1481 -1.06427 0.671731
AU.MTN.BHZ.00 2023-01-16T04:57:07.58 10.0 negative automatic P 192 42.4950 -1.66565 0.683583
GE.SOEI.BHZ. 2023-01-16T04:56:58.32 10.0 negative automatic P 203 41.3304 -1.7939 0.631541
IU.ADK.BHZ.00 2023-01-16T04:56:46.70 10.0 positive automatic P 42 39.6569 0.23595 0.772212
GE.PMG.BHZ.00 2023-01-16T04:56:42.57 10.0 positive automatic P 168 38.9985 1.48509 0.766632
GE.LUWI.BHZ. 2023-01-16T04:55:56.17 10.0 positive automatic P 211 33.9260 -2.646 0.829411
IU.YAK.BHZ.00 2023-01-16T04:55:54.52 10.0 positive automatic P 352 33.7711 -2.99704 0.872131
GE.SANI.BHZ. 2023-01-16T04:55:53.72 10.0 negative automatic P 205 33.5232 -1.67598 0.877303
GE.FAKI.BHZ. 2023-01-16T04:55:46.02 10.0 negative automatic P 194 32.5468 -1.04877 0.876944
MY.KKM.BHZ. 2023-01-16T04:55:40.72 10.0 negative automatic P 228 31.6976 0.834164 0.836221
IU.ULN.BHZ.00 2023-01-16T04:55:36.22 10.0 positive automatic P 316 31.3468 -0.772877 0.945887
MY.LDM.BHZ. 2023-01-16T04:55:34.62 10.0 negative automatic P 224 30.9253 1.51943 0.783235
GE.TNTI.BHZ. 2023-01-16T04:55:28.12 10.0 negative automatic P 204 30.3931 -0.339493 0.943922
IU.TATO.BHZ.00 2023-01-16T04:53:20.57 10.0 positive automatic P 261 16.4819 0.533873 0.97561
IU.GUMO.BHZ.00 2023-01-16T04:53:18.65 10.0 positive automatic P 161 16.0882 2.81148 0.898876
JP.YOJ.BHZ. 2023-01-16T04:53:08.85 10.0 positive automatic P 257 15.3456 1.01188 0.909091
IU.INCN.BHZ.00 2023-01-16T04:52:49.32 10.0 negative automatic P 312 13.7473 -1.21371 0.8
II.ERM.BHZ.00 2023-01-16T04:52:47.67 10.0 positive automatic P 12 13.4674 0.190418 0.909091
JP.JTM.BHZ. 2023-01-16T04:52:29.50 10.0 positive automatic P 6 11.9785 -1.67207 0.909091
JP.JOW.BHZ. 2023-01-16T04:52:13.25 10.0 positive automatic P 261 10.1113 2.67146 0.833333
JP.JTU.BHZ. 2023-01-16T04:52:13.45 10.0 negative automatic P 306 10.2601 1.24546 0.833333
JP.JSU.BHZ. 2023-01-16T04:51:51.40 10.0 positive automatic P 291 8.2284 1.69319 0.952381
JP.JMZ.BHZ. 2023-01-16T04:51:48.80 10.0 negative automatic P 249 7.9423 2.33203 0.888889
JP.JCJ.BHZ. 2023-01-16T04:51:47.55 10.0 positive automatic S 126 2.9824 0.428548 0
IU.MAJO.BHZ.00 2023-01-16T04:51:42.12 10.0 positive automatic P 352 7.7389 -2.15048 0.930233
JP.JGF.BHZ. 2023-01-16T04:51:35.00 10.0 negative automatic P 346 6.9582 -0.622188 0.909091
JP.JMN.BHZ. 2023-01-16T04:51:34.90 10.0 positive automatic P 317 6.8118 0.907673 0.97561
G.INU.BHZ.00 2023-01-16T04:51:33.76 10.0 positive automatic P 343 6.7926 0.0536987 0.909091
JP.JSG.BHZ. 2023-01-16T04:51:25.20 10.0 negative automatic P 350 5.9000 1.2162 0.31746
JP.JHJ2.BHZ. 2023-01-16T04:51:06.10 10.0 positive automatic P 4 4.2440 -0.973792 0.952381
JP.JCJ.BHZ. 2023-01-16T04:50:57.40 10.0 positive automatic P 126 2.9824 1.49005 0.869565
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