INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of Mwp 6.4 on date 19-11-2017 and time 10:25:50 (Italy) in region New Caledonia [Sea]

A magnitude Mwp 6.4 earthquake occured in region: New Caledonia [Sea], on

  • 19-11-2017 09:25:50 (UTC)
  • 19-11-2017 10:25:50 (UTC +01:00) Italian time
  • 19-11-2017 20:25:50 (UTC +11:00) local time in the region of the earthquake (Pacific/Noumea)

and geographic coordinates (lat, lon) -21.49, 168.73 at 20 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.

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
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 mb 5.5
Mwp 6.4

Mwpd 6.5
2017-11-19
09:25:50
-21.49 168.73 20 2017-11-19
09:38:29
Sala Sismica INGV-Roma 51971841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-11-19 09:25:50
Latitude -21.49
Longitude 168.73
Depth (km) 20 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 51971841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 11373
Semi-minor axis of confidence ellipse (meter) 10351
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 2
Circular confidence region, given by single value of horizontal uncertainty (meter) 12301.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 108.543
Number of associated phases, regardless of their use for origin computation 43
Number of defining phases 43
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.3236
Epicentral distance of station closest to the epicenter (degree) 4.25108
Epicentral distance of station farthest from the epicenter (degree) 57.96605
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:6.5

Field Value
Value 6.5
Uncertainty 0.1
Num. used stations 20
Type of magnitude Mwpd
Reference to an origin 51971841
Agency INGV
Autore Auto added
Time of creation (UTC) 2017-11-19 09:38:29

Mwp:6.4

Field Value
Value 6.4
Uncertainty 0.1
Num. used stations 31
Type of magnitude Mwp
Reference to an origin 51971841
Agency INGV
Autore Auto added
Time of creation (UTC) 2017-11-19 09:38:29

mb:5.5

Field Value
Value 5.5
Uncertainty 0.1
Num. used stations 33
Type of magnitude mb
Reference to an origin 51971841
Agency INGV
Autore Auto added
Time of creation (UTC) 2017-11-19 09:38:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GE.SMRI.BHZ. 2017-11-19T09:35:40.87 10.0 negative automatic P 275 57.966 1.11694 0
IU.CASY.BHZ.00 2017-11-19T09:35:37.87 10.0 negative automatic P 204 57.8065 -0.725751 0.433052
IU.SBA.BHZ.00 2017-11-19T09:35:28.90 10.0 negative automatic P 180 56.3601 0.524387 0.454288
GE.JAGI.BHZ. 2017-11-19T09:35:10.92 10.0 negative automatic P 275 54.024 -0.613253 0.467903
G.TAOE.BHZ.00 2017-11-19T09:34:46.98 10.0 positive automatic P 84 50.6953 0.0406617 0.539854
II.KAPI.BHZ.00 2017-11-19T09:34:43.02 10.0 negative automatic P 282 50.1745 0.104525 0.438642
AU.MORW.BHZ. 2017-11-19T09:34:24.90 10.0 negative automatic P 250 47.8541 -0.235701 0.576078
GE.SANI.BHZ. 2017-11-19T09:34:08.72 10.0 positive automatic P 289 45.8878 -0.98661 0.505639
IU.MBWA.BHZ.00 2017-11-19T09:34:06.55 10.0 negative automatic P 261 45.4437 0.320719 0.653789
GE.SOEI.BHZ. 2017-11-19T09:33:57.77 10.0 negative automatic P 278 44.2249 1.10468 0.668043
IU.XMAS.BHZ.00 2017-11-19T09:33:26.10 10.0 positive automatic P 59 40.5887 -0.801447 0.671985
GE.FAKI.BHZ. 2017-11-19T09:33:20.57 10.0 negative automatic P 293 40.0154 -1.59734 0.570433
AU.FORT.BHZ. 2017-11-19T09:33:00.42 10.0 negative automatic P 247 37.4521 -0.256415 0.806837
AU.WRKA.BHZ. 2017-11-19T09:32:58.20 10.0 negative automatic P 256 37.1761 -0.213508 0.793298
AU.MTN.BHZ. 2017-11-19T09:32:55.10 10.0 negative automatic P 277 36.8446 -0.412463 0.790558
AU.KDU.BHZ. 2017-11-19T09:32:44.72 10.0 negative automatic P 278 35.6604 -0.652096 0.707058
II.WRAB.BHZ.00 2017-11-19T09:32:13.27 10.0 positive automatic P 266 32.1184 -1.38778 0.907008
AU.HTT.BHZ. 2017-11-19T09:31:46.32 10.0 negative automatic P 239 28.8754 0.24538 0.941176
AU.MANU.BHZ. 2017-11-19T09:31:42.05 10.0 negative automatic P 310 28.471 -0.333566 0.808081
AU.TOO.BHZ. 2017-11-19T09:31:18.07 10.0 negative automatic P 226 25.6997 0.517562 0.879121
AU.COEN.BHZ. 2017-11-19T09:31:16.25 10.0 positive automatic P 283 25.438 1.11939 0.930233
IU.PMG.BHZ.00 2017-11-19T09:31:01.07 10.0 negative automatic P 297 23.9981 -0.907966 0.740741
AU.RABL.BHZ. 2017-11-19T09:30:56.65 10.0 negative automatic P 315 23.617 -1.87879 0
NZ.ODZ.HHZ.10 2017-11-19T09:30:55.63 10.0 positive automatic P 177 23.6012 -2.74964 0.766284
AU.MILA.BHZ. 2017-11-19T09:30:52.57 10.0 positive automatic P 223 23.0078 0.184117 0.727273
AU.QLP.BHZ. 2017-11-19T09:30:51.80 10.0 positive automatic P 252 22.899 0.659876 0.952381
G.CAN.BHZ.00 2017-11-19T09:30:43.35 10.0 positive automatic P 227 22.1094 0.519803 0.909091
IU.CTAO.BHZ.00 2017-11-19T09:30:33.32 10.0 negative automatic P 270 21.0373 2.04704 0.952381
IU.SNZO.BHZ.00 2017-11-19T09:30:28.37 10.0 negative automatic pP 167 20.4459 -1.99857 0
AU.NIUE.BHZ. 2017-11-19T09:30:20.32 10.0 positive automatic P 87 20.1503 -1.29603 0.930233
AU.RIV.BHZ. 2017-11-19T09:30:19.55 10.0 positive automatic P 228 19.8021 1.73891 0.808081
IU.AFI.BHZ.00 2017-11-19T09:30:18.47 10.0 positive automatic P 71 20.0367 -2.01001 0.888889
NZ.URZ.HHZ.10 2017-11-19T09:30:01.19 10.0 negative automatic P 159 18.2525 0.447128 0.917431
AU.ARMA.BHZ. 2017-11-19T09:29:55.37 10.0 positive automatic P 236 17.742 0.726248 0.930233
IU.FUNA.BHZ.00 2017-11-19T09:29:40.60 10.0 positive automatic P 39 16.4277 2.59616 0
AU.EIDS.BHZ. 2017-11-19T09:29:40.25 10.0 positive automatic P 253 16.6321 -0.379763 0.987654
IU.HNR.BHZ.00 2017-11-19T09:29:15.65 10.0 negative automatic P 324 14.717 -0.0132806 0
NZ.OUZ.HHZ.10 2017-11-19T09:29:11.70 10.0 positive automatic P 164 14.3737 0.725438 0.921659
AU.LHI.BHZ. 2017-11-19T09:28:53.72 10.0 positive automatic P 219 13.2266 -1.60366 0
II.MSVF.BHZ.00 2017-11-19T09:28:08.82 10.0 negative automatic P 69 9.5477 3.70063 0.888889
AU.NFK.BHZ. 2017-11-19T09:27:36.07 10.0 positive automatic P 185 7.5819 -1.9838 0.43956
ND.KOUNC.BHZ.00 2017-11-19T09:26:52.04 10.0 positive automatic P 282 4.2511 -0.234534 0.930233
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download