Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Mwp 6.0 on date 12-03-2023 and time 08:43:21 (Italy) in region Solomon Is. [Sea]

A magnitude Mwp 6.0 earthquake occured in region: Solomon Is. [Sea], on

  • 12-03-2023 07:43:21 (UTC)
  • 12-03-2023 08:43:21 (UTC +01:00) Italian time
  • 12-03-2023 18:43:21 (UTC +11:00) local time in the region of the earthquake (Pacific/Guadalcanal)

and geographic coordinates (lat, lon) -11.8340, 165.9740 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 5.2
Mwp 6.0
Mwpd 6.0 		2023-03-12
07:43:21		 -11.8336 165.974 10 2023-03-12
08:04:33		 Sala Sismica INGV-Roma 115275421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-12 07:43:21
Latitude -11.8336
Longitude 165.9740
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 115275421

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 21733
Semi-minor axis of confidence ellipse (meter) 11360
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 39
Circular confidence region, given by single value of horizontal uncertainty (meter) 17553.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 141.393
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 39
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.08638
Epicentral distance of station closest to the epicenter (degree) 3.80560
Epicentral distance of station farthest from the epicenter (degree) 90.76620
Number of stations at which the event was observed 37
Number of stations from which data was used for origin computation 37
Magnitudes information

Mwpd:6.0

Field Value
Value 6.0
Uncertainty 0.1
Num. used stations 12
Type of magnitude Mwpd
Reference to an origin 115275421
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2023-03-12 08:04:33

Mwp:6.0

Field Value
Value 6.0
Uncertainty 0.2
Num. used stations 14
Type of magnitude Mwp
Reference to an origin 115275421
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2023-03-12 08:04:33

mb:5.2

Field Value
Value 5.2
Uncertainty 0.2
Num. used stations 26
Type of magnitude mb
Reference to an origin 115275421
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2023-03-12 08:04:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
US.HLID.BHZ.00 2023-03-12T07:56:25.00 10.0 positive automatic PcP 45 90.7662 0.727757 0
GE.HALK.BHZ. 2023-03-12T07:56:09.75 10.0 positive automatic PcP 277 86.6651 3.8984 0
II.PALK.BHZ.00 2023-03-12T07:56:08.55 10.0 negative automatic PcP 278 86.8970 1.61089 0
IO.EVN.BHZ. 2023-03-12T07:56:04.55 10.0 positive automatic PcP 300 86.1886 -0.0413518 0
US.EGAK.BHZ.00 2023-03-12T07:56:02.35 10.0 positive automatic P 20 86.1973 1.1202 0.124911
IU.ULN.BHZ.00 2023-03-12T07:55:27.07 10.0 positive automatic PcP 324 79.2253 -6.41551 0
MY.KUM.BHZ. 2023-03-12T07:54:14.92 10.0 negative automatic P 281 67.1699 1.19455 0.203662
MY.IPM.BHZ. 2023-03-12T07:54:11.77 10.0 negative automatic pP 280 66.5970 1.66267 0.322407
IU.SBA.BHZ.00 2023-03-12T07:54:08.20 10.0 negative automatic pP 180 66.0139 1.8624 0.314842
GT.VNDA.BHZ.00 2023-03-12T07:54:05.00 10.0 negative automatic pP 181 65.7152 0.577861 0.0787318
IU.MAJO.BHZ.00 2023-03-12T07:52:51.42 10.0 negative automatic P 333 54.9936 0.299968 0.464032
JP.JMN.BHZ. 2023-03-12T07:52:51.45 10.0 positive automatic P 327 54.8506 1.33604 0.466157
G.INU.BHZ.00 2023-03-12T07:52:48.81 10.0 positive automatic P 331 54.5519 0.93437 0.406018
JP.JGF.BHZ. 2023-03-12T07:52:48.85 10.0 positive automatic P 331 54.6060 0.502009 0.405321
AU.MORW.BHZ. 2023-03-12T07:52:09.57 10.0 negative automatic P 242 49.4356 -0.216937 0.550216
IU.NWAO.BHZ.00 2023-03-12T07:52:07.47 10.0 negative automatic P 236 49.2071 -0.585628 0.464233
IU.MBWA.BHZ.00 2023-03-12T07:51:36.67 10.0 negative automatic P 252 45.1449 0.336692 0.651374
GE.LUWI.BHZ. 2023-03-12T07:51:29.82 10.0 negative automatic P 281 44.1860 1.17564 0.638356
AU.FORT.BHZ.00 2023-03-12T07:50:51.70 10.0 negative automatic P 236 39.7936 -1.09106 0.742441
AU.FITZ.BHZ. 2023-03-12T07:50:49.00 10.0 negative automatic P 256 39.3867 -0.3933 0
AU.WRKA.BHZ.00 2023-03-12T07:50:35.98 10.0 negative automatic P 244 37.9403 -1.36557 0.760384
AU.MTN.BHZ.00 2023-03-12T07:50:03.43 10.0 negative automatic P 265 34.0248 -0.289269 0.846798
NZ.ODZ.HHZ.10 2023-03-12T07:49:58.47 10.0 positive automatic P 174 33.4483 -0.252374 0.866595
AU.KDU.BHZ.00 2023-03-12T07:49:51.83 10.0 negative automatic P 265 32.7250 -0.536991 0.863336
AU.TOO.BHZ.00 2023-03-12T07:49:42.30 10.0 positive automatic P 212 31.5969 -0.260566 0.89677
NZ.KHZ.HHZ.10 2023-03-12T07:49:39.51 10.0 positive automatic P 169 31.2820 -0.176294 0.947424
NZ.URZ.HHZ.10 2023-03-12T07:49:12.58 10.0 negative automatic P 161 28.2307 -0.0823163 0.934579
AU.RIV.BHZ. 2023-03-12T07:48:52.35 10.0 positive automatic P 209 25.8172 1.40124 0.860215
AU.QLP.BHZ. 2023-03-12T07:48:44.50 10.0 negative automatic P 231 25.2031 -0.91224 0.941176
NZ.OUZ.HHZ.10 2023-03-12T07:48:38.77 10.0 positive automatic P 165 24.3846 0.841141 0.763359
AU.ARMA.BHZ. 2023-03-12T07:48:22.02 10.0 negative automatic P 213 22.8469 -1.07555 0.898876
IU.CTAO.BHZ.00 2023-03-12T07:47:59.62 10.0 negative automatic P 244 20.6522 0.178158 0.941176
AU.EIDS.BHZ. 2023-03-12T07:47:47.30 10.0 negative automatic P 224 19.5200 0.202166 0.952381
GE.PMG.BHZ.00 2023-03-12T07:47:38.92 10.0 negative automatic P 276 18.6508 1.38353 0.930233
ND.KOUNC.BHZ.00 2023-03-12T07:45:25.55 10.0 negative automatic P 190 8.8658 -2.2251 0.816327
IU.HNR.BHZ.00 2023-03-12T07:44:54.95 10.0 positive automatic P 291 6.3881 1.16449 0.97561
G.SANVU.BHZ.00 2023-03-12T07:44:16.95 10.0 positive automatic P 162 3.8056 -1.33125 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