Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Mwp 5.7 on date 28-09-2023 and time 21:21:17 (Italy) in region Papua New Guinea [Sea]

A magnitude Mwp 5.7 earthquake occured in region: Papua New Guinea [Sea], on

  • 28-09-2023 19:21:17 (UTC)
  • 28-09-2023 21:21:17 (UTC +02:00) Italian time
  • 29-09-2023 06:21:17 (UTC +11:00) local time in the region of the earthquake (Pacific/Bougainville)

and geographic coordinates (lat, lon) -5.2100, 152.9650 at 46 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 5.4
Mwp 5.7
Mwpd 5.9 		2023-09-28
19:21:17		 -5.2102 152.965 46 2023-09-28
19:41:45		 Sala Sismica INGV-Roma 121555991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-28 19:21:17
Latitude -5.2102
Longitude 152.9650
Depth (km) 46 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 121555991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 29779214
Semi-minor axis of confidence ellipse (meter) 9651470
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 284
Circular confidence region, given by single value of horizontal uncertainty (meter) 25257900.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 95.3331
Number of associated phases, regardless of their use for origin computation 57
Number of defining phases 57
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.03996
Epicentral distance of station closest to the epicenter (degree) 1.29446
Epicentral distance of station farthest from the epicenter (degree) 89.76344
Number of stations at which the event was observed 57
Number of stations from which data was used for origin computation 57
Magnitudes information

Mwp:5.7

Field Value
Value 5.7
Uncertainty 0.1
Num. used stations 18
Type of magnitude Mwp
Reference to an origin 121555991
Agency INGV
Autore Auto added
Time of creation (UTC) 2023-09-28 19:41:45

Mwpd:5.9

Field Value
Value 5.9
Uncertainty 0.1
Num. used stations 19
Type of magnitude Mwpd
Reference to an origin 121555991
Agency INGV
Autore Auto added
Time of creation (UTC) 2023-09-28 19:41:45

mb:5.4

Field Value
Value 5.4
Uncertainty 0.1
Num. used stations 52
Type of magnitude mb
Reference to an origin 121555991
Agency INGV
Autore Auto added
Time of creation (UTC) 2023-09-28 19:41:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
II.JZAX.BHZ.00 2023-09-28T19:34:10.22 10.0 positive automatic P 310 9960.5406 0.992917 0.10279
II.BORK.BHZ.00 2023-09-28T19:34:09.62 10.0 positive automatic P 323 9963.7374 0.290824 0.102724
IU.QSPA.BHZ.00 2023-09-28T19:33:47.32 10.0 positive automatic P 180 9403.4538 1.67821 0.109064
IU.COLA.BHZ.00 2023-09-28T19:33:32.80 10.0 positive automatic P 22 9131.7591 1.06258 0.125175
IU.TIXI.BHZ.00 2023-09-28T19:33:11.85 10.0 positive automatic P 352 8707.3728 1.32377 0.136075
II.KDAK.BHZ.00 2023-09-28T19:33:02.87 10.0 positive automatic P 26 8501.5677 0.995941 0.141103
AK.GAMB.BHZ. 2023-09-28T19:32:47.49 10.0 positive automatic P 15 8201.0019 1.56402 0.145933
GE.MALK.BHZ. 2023-09-28T19:32:45.27 10.0 positive automatic P 280 8156.4798 1.02416 0.155079
II.TLY.BHZ.00 2023-09-28T19:32:27.52 10.0 positive automatic P 330 7842.4608 1.22837 0.167749
IU.YAK.BHZ.00 2023-09-28T19:32:19.97 10.0 positive automatic P 349 7723.6131 0.821234 0.189959
AT.AKUT.BHZ. 2023-09-28T19:32:14.90 10.0 positive automatic P 25 7613.5455 1.06197 0.17554
IU.MA2.BHZ.00 2023-09-28T19:31:49.82 10.0 positive automatic P 359 7193.4993 0.401805 0.357339
IU.ADK.BHZ.00 2023-09-28T19:31:36.60 10.0 positive automatic P 21 6956.6364 1.49482 0.215705
IU.PET.BHZ.00 2023-09-28T19:31:07.15 10.0 positive automatic P 4 6485.6412 0.802271 0.257257
IU.CHTO.BHZ.00 2023-09-28T19:31:07.60 10.0 positive automatic P 296 6478.1043 1.04001 0.237575
GE.GSI.BHZ. 2023-09-28T19:30:46.47 10.0 positive automatic P 275 6183.1107 -0.83535 0.257892
PS.PSI.BHZ. 2023-09-28T19:30:38.61 10.0 positive automatic P 277 6055.7826 0.0809731 0.263008
MY.KUM.BHZ. 2023-09-28T19:30:29.77 10.0 positive automatic P 281 5914.5018 -0.298778 0.294963
IU.YSS.BHZ.00 2023-09-28T19:30:27.05 10.0 positive automatic P 351 5876.6175 0.0231201 0.305894
MY.IPM.BHZ. 2023-09-28T19:30:26.12 10.0 positive automatic P 280 5857.5033 0.0357897 0.293898
JP.JKA.BHZ. 2023-09-28T19:30:06.95 10.0 positive automatic P 350 5572.5885 -0.0931317 0.324725
MY.KOM.BHZ. 2023-09-28T19:30:02.37 10.0 positive automatic P 277 5501.0268 -0.224456 0.318742
IU.INCN.BHZ.00 2023-09-28T19:29:59.87 10.0 positive automatic P 332 5464.4634 0.71283 0.533322
II.ERM.BHZ.00 2023-09-28T19:29:51.82 10.0 positive automatic P 350 5334.8265 1.1379 0.354321
PS.TJN.BHZ. 2023-09-28T19:29:49.96 10.0 positive automatic P 332 5326.9344 -0.129763 0.49837
RM.DLV.BHZ. 2023-09-28T19:29:45.92 10.0 positive automatic P 291 5266.1619 -0.747956 0.390229
JP.JTM.BHZ. 2023-09-28T19:29:43.70 10.0 positive automatic P 348 5247.4806 -0.464496 0.383655
JP.JTU.BHZ. 2023-09-28T19:29:30.40 10.0 positive automatic P 333 5053.5747 -1.1702 0.386092
JP.JGF.BHZ. 2023-09-28T19:29:11.75 10.0 positive automatic P 341 4813.5705 -1.17295 0.435234
IU.TATO.BHZ.00 2023-09-28T19:29:11.22 10.0 positive automatic P 316 4769.9919 0.742026 0.453531
G.INU.BHZ.00 2023-09-28T19:29:10.51 10.0 positive automatic P 341 4799.2626 -1.39267 0.428103
JP.JMN.BHZ. 2023-09-28T19:29:09.20 10.0 positive automatic P 336 4764.453 -1.02387 0.454586
JP.JSU.BHZ. 2023-09-28T19:29:06.55 10.0 positive automatic P 331 4721.0742 0.0201771 0.462979
AU.MORW.BHZ. 2023-09-28T19:29:04.85 10.0 positive automatic P 231 4691.9145 0.738166 0.485698
JP.YOJ.BHZ. 2023-09-28T19:28:59.70 10.0 positive automatic P 317 4617.8109 0.186102 0.424668
MY.SBM.BHZ. 2023-09-28T19:28:58.47 10.0 positive automatic P 280 4597.731 0.21174 0.488161
PS.ISG.BHZ. 2023-09-28T19:28:52.46 10.0 positive automatic P 318 4519.5981 0.483561 0.452566
JP.JOW.BHZ. 2023-09-28T19:28:46.35 10.0 positive automatic P 325 4436.5812 0.101988 0.490084
GE.JAGI.BHZ. 2023-09-28T19:28:33.17 10.0 positive automatic P 263 4290.8271 -1.1114 0.560511
IU.MBWA.BHZ.00 2023-09-28T19:28:11.70 10.0 positive automatic P 241 3989.4288 0.256941 0.63369
AU.FORT.BHZ.00 2023-09-28T19:28:00.68 10.0 positive automatic P 220 3847.5819 -0.206109 0.713732
JP.JCJ.BHZ. 2023-09-28T19:27:51.60 10.0 positive automatic P 343 3767.8839 -2.19965 0.726945
PS.OGS.BHZ. 2023-09-28T19:27:51.11 10.0 positive automatic P 343 3763.2219 -3.16628 0.728747
G.CAN.BHZ.00 2023-09-28T19:27:23.35 10.0 positive automatic P 186 3366.5301 -0.194143 0.910676
GE.SANI.BHZ. 2023-09-28T19:26:53.27 10.0 positive automatic P 276 3008.2998 -0.278373 0.43956
AU.ARMA.BHZ. 2023-09-28T19:26:38.40 10.0 positive automatic P 183 2801.4624 0.32943 0.941176
AU.QLP.BHZ. 2023-09-28T19:26:15.42 10.0 positive automatic P 200 2546.34 -0.288527 0.434783
AU.MTN.BHZ.00 2023-09-28T19:26:14.48 10.0 positive automatic P 249 2536.6608 -0.608697 0.321285
PS.KOR.BHZ. 2023-09-28T19:26:10.11 10.0 positive automatic P 304 2476.9872 0.736544 0.930233
AU.KDU.BHZ.00 2023-09-28T19:26:00.73 10.0 positive automatic P 248 2393.3154 -0.617835 1.39815
IU.GUMO.BHZ.00 2023-09-28T19:25:50.85 10.0 positive automatic P 337 2269.3728 0.369643 0.987654
AU.EIDS.BHZ. 2023-09-28T19:25:47.70 10.0 positive automatic P 185 2246.4957 0.279513 0.909091
IU.CTAO.BHZ.00 2023-09-28T19:25:00.37 10.0 positive automatic P 203 1803.2727 -1.39552 0.43956
PS.PATS.BHZ. 2023-09-28T19:24:20.61 10.0 positive automatic P 24 1462.6137 0.377116 0.930233
PS.JAY.BHZ. 2023-09-28T19:24:12.01 10.0 positive automatic P 282 1390.3416 0.587204 0.982822
IU.HNR.BHZ.00 2023-09-28T19:23:14.15 10.0 positive automatic P 122 900.5097 2.75963 0.43956
AU.RABL.BHZ.00 2023-09-28T19:21:38.20 10.0 positive automatic P 322 143.6895 0.682988 1.95205
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