Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Mwp 5.7 on date 09-04-2023 and time 10:31:22 (UTC) in region India [Sea]

A magnitude Mwp 5.7 earthquake occured in region: India [Sea], on

  • 09-04-2023 10:31:22 (UTC)
  • 09-04-2023 12:31:22 (UTC +02:00) Italian time
  • 09-04-2023 17:31:22 (UTC +07:00) local time in the region of the earthquake (Asia/Bangkok)

and geographic coordinates (lat, lon) 9.0600, 93.9550 at 10 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 5.3
Mwp 5.7
Mwpd 5.8 		2023-04-09
10:31:22		 9.0598 93.9551 10 2023-04-09
10:42:51		 Sala Sismica INGV-Roma 116203051
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-09 10:31:22
Latitude 9.0598
Longitude 93.9551
Depth (km) 10 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 116203051

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 8382
Semi-minor axis of confidence ellipse (meter) 6016
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 223
Circular confidence region, given by single value of horizontal uncertainty (meter) 6791.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 80.6101
Number of associated phases, regardless of their use for origin computation 49
Number of defining phases 49
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 2.05906
Epicentral distance of station closest to the epicenter (degree) 2.85614
Epicentral distance of station farthest from the epicenter (degree) 62.18816
Number of stations at which the event was observed 42
Number of stations from which data was used for origin computation 42
Magnitudes information

Mwpd:5.8

Field Value
Value 5.8
Uncertainty 0.2
Num. used stations 11
Type of magnitude Mwpd
Reference to an origin 116203051
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2023-04-09 10:42:51

Mwp:5.7

Field Value
Value 5.7
Uncertainty 0.1
Num. used stations 18
Type of magnitude Mwp
Reference to an origin 116203051
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2023-04-09 10:42:51

mb:5.3

Field Value
Value 5.3
Uncertainty 0.1
Num. used stations 28
Type of magnitude mb
Reference to an origin 116203051
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2023-04-09 10:42:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IU.ANTO.BHZ.00 2023-04-09T10:41:41.67 10.0 negative automatic P 311 6902.8902 -1.72113 0
IU.MAJO.BHZ.00 2023-04-09T10:40:05.42 10.0 negative automatic P 48 5388.0288 0.475869 0.528649
IU.CTAO.BHZ.00 2023-04-09T10:41:22.65 10.0 positive automatic P 120 6563.208 0.248321 0.40926
IU.YAK.BHZ.00 2023-04-09T10:41:20.17 10.0 negative automatic P 19 6548.5227 -1.27074 0.4258
GE.EIL.BHZ. 2023-04-09T10:41:19.95 10.0 negative automatic P 299 6513.1359 0.713445 0.401756
GE.KMBO.BHZ.00 2023-04-09T10:41:13.57 10.0 negative automatic P 263 6369.9015 3.07924 0
GE.PMG.BHZ.00 2023-04-09T10:41:02.37 10.0 positive automatic P 108 6225.9012 1.4229 0.469157
IU.YSS.BHZ.00 2023-04-09T10:41:01.20 10.0 negative automatic P 38 6217.1877 0.796504 0.403164
GE.VOI.BHZ. 2023-04-09T10:41:00.10 10.0 positive automatic P 235 6177.1056 2.11136 0.454267
KO.GURO.HHZ. 2023-04-09T10:40:52.42 10.0 negative automatic P 311 6098.1291 -0.474763 0
JP.JTM.BHZ. 2023-04-09T10:40:34.30 10.0 negative automatic P 45 5803.4019 1.09332 0.505068
JP.JGF.BHZ. 2023-04-09T10:39:57.45 10.0 negative automatic P 49 5276.829 0.225274 0.568301
AU.WRKA.BHZ.00 2023-04-09T10:39:56.83 10.0 negative automatic P 136 5302.0371 -2.16839 0.57745
G.INU.BHZ.00 2023-04-09T10:39:54.81 10.0 negative automatic P 49 5238.7227 0.341746 0.573893
IU.NWAO.BHZ.00 2023-04-09T10:39:54.42 10.0 negative automatic P 153 5270.5908 -2.33215 0.602698
JP.JMN.BHZ. 2023-04-09T10:39:32.00 10.0 negative automatic P 50 4902.4593 1.4158 0.624418
AU.MORW.BHZ. 2023-04-09T10:39:25.02 10.0 negative automatic P 152 4847.3811 -1.53842 0.654719
II.KURK.BHZ.00 2023-04-09T10:39:24.05 10.0 positive automatic P 346 4832.7513 -1.43244 0.697124
JP.JTU.BHZ. 2023-04-09T10:39:07.90 10.0 negative automatic P 46 4576.2303 1.26274 0.706887
JP.JSU.BHZ. 2023-04-09T10:39:01.95 10.0 negative automatic P 51 4508.0652 0.314246 0.718314
IU.ULN.BHZ.00 2023-04-09T10:38:58.47 10.0 negative automatic P 14 4479.2385 -1.22536 0.706739
GE.FAKI.BHZ. 2023-04-09T10:38:57.17 10.0 positive automatic P 106 4439.9778 0.659641 0.713235
IU.MAKZ.BHZ.00 2023-04-09T10:38:47.22 10.0 negative automatic P 347 4340.4552 -1.88946 0.764587
II.JZAX.BHZ.00 2023-04-09T10:38:45.60 10.0 negative automatic P 327 4310.3742 -1.2337 0.751979
II.AAK.BHZ.00 2023-04-09T10:38:36.67 10.0 negative automatic P 336 4180.26 -0.480076 0.756951
GE.SOEI.BHZ. 2023-04-09T10:38:23.92 10.0 negative automatic P 121 3946.938 4.80283 0.779615
GE.SANI.BHZ. 2023-04-09T10:38:07.67 10.0 positive automatic P 108 3751.467 3.95397 0.89285
GE.LUWI.BHZ. 2023-04-09T10:37:35.97 10.0 positive automatic P 108 3377.8188 1.79953 0.921174
GE.HALK.BHZ. 2023-04-09T10:36:54.80 10.0 positive automatic S 258 1497.1125 -7.56824 0
II.PALK.BHZ.00 2023-04-09T10:36:51.95 10.0 negative automatic S 263 1469.4069 -4.43089 0
GE.MALK.BHZ. 2023-04-09T10:36:48.37 10.0 positive automatic S 268 1473.2364 -8.74754 0
GE.SMRI.BHZ. 2023-04-09T10:36:25.62 10.0 positive automatic P 134 2553.8325 -1.0061 0
IO.EVN.BHZ. 2023-04-09T10:35:55.55 10.0 negative automatic P 341 2226.7932 -0.273623 0.952381
GE.MNAI.BHZ. 2023-04-09T10:35:11.17 10.0 positive automatic P 146 1791.8286 2.59874 0.851064
IN.SHL.HHZ. 2023-04-09T10:35:10.89 10.0 positive automatic P 353 1845.5415 -3.83308 0.754717
GE.HALK.BHZ. 2023-04-09T10:34:33.35 10.0 positive automatic P 258 1497.1125 0.333093 0.952381
II.PALK.BHZ.00 2023-04-09T10:34:30.77 10.0 positive automatic P 263 1469.4069 1.10385 0.898876
GE.MALK.BHZ. 2023-04-09T10:34:29.77 10.0 negative automatic P 268 1473.2364 -0.308955 0.869565
MY.KOM.BHZ. 2023-04-09T10:34:13.62 10.0 positive automatic P 126 1357.8297 -2.24247 0.952381
IU.CHTO.BHZ.00 2023-04-09T10:33:59.45 10.0 negative automatic P 26 1208.4015 1.9313 0.898876
GE.GSI.BHZ. 2023-04-09T10:33:23.87 10.0 negative automatic P 155 949.2054 -1.58513 0.909091
MY.IPM.BHZ. 2023-04-09T10:33:19.97 10.0 positive automatic P 123 930.291 -3.17599 0.909091
MY.KUM.BHZ. 2023-04-09T10:33:10.82 10.0 positive automatic P 119 847.5294 -2.06152 0.888889
GE.LHMI.BHZ. 2023-04-09T10:32:33.67 10.0 positive automatic P 142 537.9171 -0.889578 0.930233
IN.PBA.HHZ. 2023-04-09T10:32:07.21 10.0 positive automatic P 335 317.0271 -0.00315363 0.913242
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