Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Mwp 5.7 on date 04-10-2023 and time 02:19:10 (UTC) in region Southeast of Honshu, Japan [Sea: Japan]

A magnitude Mwp 5.7 earthquake occured in region: Southeast of Honshu, Japan [Sea: Japan], on

  • 04-10-2023 02:19:10 (UTC)
  • 04-10-2023 04:19:10 (UTC +02:00) Italian time
  • 04-10-2023 11:19:10 (UTC +09:00) local time in the region of the earthquake (Asia/Tokyo)

and geographic coordinates (lat, lon) 29.8900, 140.2400 at 18 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 5.7
Mwpd 5.8 		2023-10-04
02:19:10		 29.8898 140.24 18 2023-10-04
02:37:15		 Sala Sismica INGV-Roma 121730801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-04 02:19:10
Latitude 29.8898
Longitude 140.2400
Depth (km) 18 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 121730801

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 27902209
Semi-minor axis of confidence ellipse (meter) 19408058
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 296
Circular confidence region, given by single value of horizontal uncertainty (meter) 22528400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 93.4487
Number of associated phases, regardless of their use for origin computation 61
Number of defining phases 61
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.98761
Epicentral distance of station closest to the epicenter (degree) 3.24567
Epicentral distance of station farthest from the epicenter (degree) 83.69911
Number of stations at which the event was observed 61
Number of stations from which data was used for origin computation 61
Magnitudes information

Mwpd:5.8

Field Value
Value 5.8
Uncertainty 0.0
Num. used stations 5
Type of magnitude Mwpd
Reference to an origin 121730801
Agency INGV
Autore Auto added
Time of creation (UTC) 2023-10-04 02:37:15

Mwp:5.7

Field Value
Value 5.7
Uncertainty 0.0
Num. used stations 7
Type of magnitude Mwp
Reference to an origin 121730801
Agency INGV
Autore Auto added
Time of creation (UTC) 2023-10-04 02:37:15

mb:5.2

Field Value
Value 5.2
Uncertainty 0.1
Num. used stations 46
Type of magnitude mb
Reference to an origin 121730801
Agency INGV
Autore Auto added
Time of creation (UTC) 2023-10-04 02:37:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
II.PFO.BHZ.00 2023-10-04T02:31:39.02 10.0 positive automatic P 55 9290.6001 0.36383 0.118151
US.BW06.BHZ.00 2023-10-04T02:31:36.65 10.0 positive automatic P 44 9233.6571 1.60821 0.119612
IU.ANTO.BHZ.00 2023-10-04T02:31:34.65 10.0 positive automatic P 312 9224.9547 -0.370817 0.124118
US.HWUT.BHZ.00 2023-10-04T02:31:34.05 10.0 positive automatic P 46 9170.2317 2.03884 0.125604
PL.KWP.BHZ. 2023-10-04T02:31:34.91 10.0 positive automatic P 325 9223.9002 -0.234507 0.12126
US.DUG.BHZ.00 2023-10-04T02:31:33.88 10.0 positive automatic P 47 9169.5657 1.95572 0.119913
US.TPNV.BHZ.00 2023-10-04T02:31:25.15 10.0 positive automatic P 52 9111.2352 -5.21597 0.124278
US.ELK.BHZ.00 2023-10-04T02:31:24.33 10.0 positive automatic P 48 8964.0492 2.04608 0.129903
US.HLID.BHZ.00 2023-10-04T02:31:18.78 10.0 positive automatic P 45 8856.9453 1.77118 0.12294
BK.CMB.BHZ.00 2023-10-04T02:31:12.62 10.0 positive automatic P 52 8736.144 0.723635 0.13677
IU.KIEV.BHZ.00 2023-10-04T02:31:12.22 10.0 positive automatic P 323 8782.1868 -0.835994 0.136951
US.WVOR.BHZ.00 2023-10-04T02:31:07.30 10.0 positive automatic P 48 8625.8655 0.936834 0.0467634
GE.SUMG.BHZ.10 2023-10-04T02:31:05.55 10.0 positive automatic P 360 8605.6746 0.760905 0.133119
US.BMO.BHZ.00 2023-10-04T02:31:04.83 10.0 positive automatic P 45 8585.9943 1.38045 0.13995
US.NEW.BHZ.00 2023-10-04T02:30:56.35 10.0 positive automatic P 42 8411.5356 1.86892 0.136306
GE.VSU.BHZ. 2023-10-04T02:30:55.55 10.0 positive automatic P 330 8422.902 0.49898 0.142118
II.KIV.BHZ.00 2023-10-04T02:30:49.17 10.0 positive automatic P 312 8291.4669 0.202091 0.140283
US.NLWA.BHZ.00 2023-10-04T02:30:37.15 10.0 positive automatic P 45 8008.2726 2.43535 0.157217
GE.DAG.BHZ. 2023-10-04T02:30:35.17 10.0 positive automatic P 355 8051.718 0.174553 0.0207996
IU.KEV.BHZ.00 2023-10-04T02:30:17.17 10.0 positive automatic P 340 7720.9824 -0.197121 0.17719
AU.FORT.BHZ.00 2023-10-04T02:29:25.55 10.0 positive automatic P 192 6855.6264 -1.52492 0.224754
II.ARTI.BHZ.00 2023-10-04T02:29:20.97 10.0 positive automatic P 321 6783.7539 -1.7568 0.219109
CN.EAGLY.BHZ. 2023-10-04T02:29:18.53 10.0 positive automatic P 27 6669.6015 2.74518 0.11464
CN.CROWY.BHZ. 2023-10-04T02:29:09.48 10.0 positive automatic P 26 6521.1612 2.96139 0.237113
II.JZAX.BHZ.00 2023-10-04T02:29:05.25 10.0 positive automatic P 301 6511.26 -0.639766 0.328191
US.EGAK.BHZ.00 2023-10-04T02:29:05.25 10.0 positive automatic P 29 6483.2547 1.16301 0.125659
IU.COLA.BHZ.00 2023-10-04T02:28:46.95 10.0 positive automatic P 29 6166.7826 2.31608 0.274511
AU.WRKA.BHZ.00 2023-10-04T02:28:46.60 10.0 positive automatic P 193 6227.8548 -1.29329 0.269152
II.BORK.BHZ.00 2023-10-04T02:28:37.25 10.0 positive automatic P 316 6076.8282 -0.803757 0.276201
II.KDAK.BHZ.00 2023-10-04T02:28:26.60 10.0 positive automatic P 38 5890.0707 0.495201 0.311924
II.AAK.BHZ.00 2023-10-04T02:28:26.52 10.0 positive automatic P 303 5900.7267 -0.403926 0.296342
AU.FITZ.BHZ. 2023-10-04T02:28:02.10 10.0 positive automatic P 198 5551.11 -0.138468 0.323566
II.KURK.BHZ.00 2023-10-04T02:27:59.30 10.0 positive automatic P 313 5517.6435 -0.713689 0.351179
GE.GSI.BHZ. 2023-10-04T02:27:58.67 10.0 positive automatic P 243 5500.4829 -0.301872 0.341047
IU.MAKZ.BHZ.00 2023-10-04T02:27:43.42 10.0 positive automatic P 308 5273.3547 0.170216 0.371065
PS.PSI.BHZ. 2023-10-04T02:27:42.91 10.0 positive automatic P 243 5287.0188 -0.945636 0.174433
GE.JAGI.BHZ. 2023-10-04T02:27:29.02 10.0 positive automatic P 217 5087.13 -0.550353 0.389673
MY.IPM.BHZ. 2023-10-04T02:27:22.22 10.0 positive automatic P 243 4981.3359 -0.537236 0.415856
MY.KUM.BHZ. 2023-10-04T02:27:21.02 10.0 positive automatic P 245 4957.704 -0.376259 0.429826
AU.MTN.BHZ.00 2023-10-04T02:27:11.13 10.0 positive automatic P 193 4842.2307 -1.77937 0.220049
AU.KDU.BHZ.00 2023-10-04T02:27:07.15 10.0 positive automatic P 191 4798.2969 -2.54476 0.113367
IU.TIXI.BHZ.00 2023-10-04T02:27:00.70 10.0 positive automatic P 355 4684.4109 0.0756743 0.470258
IU.BILL.BHZ.00 2023-10-04T02:26:53.37 10.0 positive automatic P 15 4569.1485 0.928457 0.506058
IU.CHTO.BHZ.00 2023-10-04T02:26:34.40 10.0 positive automatic P 263 4327.3461 -0.439673 0.55757
GE.SANI.BHZ. 2023-10-04T02:25:55.67 10.0 positive automatic P 206 3853.7757 -2.0734 0.711438
IU.YAK.BHZ.00 2023-10-04T02:25:40.87 10.0 positive automatic P 351 3648.9918 -0.491106 0.51276
IU.ULN.BHZ.00 2023-10-04T02:25:26.92 10.0 positive automatic P 315 3451.2786 0.113821 0.866479
IU.MA2.BHZ.00 2023-10-04T02:25:21.67 10.0 positive automatic P 10 3388.719 -0.0432489 0.942624
PS.KOR.BHZ. 2023-10-04T02:24:17.31 10.0 positive automatic P 195 2573.7126 1.97526 0.909091
IU.YSS.BHZ.00 2023-10-04T02:23:08.95 10.0 positive automatic P 6 1906.9245 0.274983 1.50253
IU.GUMO.BHZ.00 2023-10-04T02:23:08.85 10.0 positive automatic P 164 1870.5498 3.11449 0.930233
JP.JKA.BHZ. 2023-10-04T02:22:29.55 10.0 positive automatic P 7 1592.8722 -2.29924 0.952381
IU.INCN.BHZ.00 2023-10-04T02:22:26.62 10.0 positive automatic P 307 1510.9431 3.87017 0.664273
II.ERM.BHZ.00 2023-10-04T02:22:02.97 10.0 positive automatic P 10 1370.8833 -0.985024 0.869565
JP.JOW.BHZ. 2023-10-04T02:21:43.75 10.0 positive automatic P 257 1216.2714 -2.4303 0.888889
JP.JTM.BHZ. 2023-10-04T02:21:42.30 10.0 positive automatic P 3 1212.0978 -1.98027 0.869565
JP.JMN.BHZ. 2023-10-04T02:20:44.00 10.0 positive automatic P 307 735.9744 -2.54272 0.909091
JP.JGF.BHZ. 2023-10-04T02:20:40.90 10.0 positive automatic P 338 688.977 -0.0387079 1.19802
G.INU.BHZ.00 2023-10-04T02:20:37.46 10.0 positive automatic P 335 676.1898 -2.00619 0.952381
JP.JSG.BHZ. 2023-10-04T02:20:29.75 10.0 positive automatic P 341 565.3341 3.21248 0.465116
JP.JHJ2.BHZ. 2023-10-04T02:20:03.40 10.0 positive automatic P 354 360.2727 3.85236 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