INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of Mwp 6.8 on date 16-10-2018 and time 03:03:44 (Italy) in region New Caledonia [Sea]

A magnitude Mwp 6.8 earthquake occured in region: New Caledonia [Sea], on

  • 16-10-2018 01:03:44 (UTC)
  • 16-10-2018 03:03:44 (UTC +02:00) Italian time
  • 16-10-2018 12:03:44 (UTC +11:00) local time in the region of the earthquake (Pacific/Noumea)

and geographic coordinates (lat, lon) -21.71, 169.52 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.

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 5.6
Mwp 6.8

Mwpd 6.9
2018-10-16
01:03:44
-21.71 169.52 10 2018-10-16
01:22:15
Sala Sismica INGV-Roma 61985781
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-10-16 01:03:44
Latitude -21.71
Longitude 169.52
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 61985781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 16251
Semi-minor axis of confidence ellipse (meter) 12437
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 168
Circular confidence region, given by single value of horizontal uncertainty (meter) 13175.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74.2397
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 31
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.40438
Epicentral distance of station closest to the epicenter (degree) 1.40474
Epicentral distance of station farthest from the epicenter (degree) 49.9656
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 30
Magnitudes information

Mwp:6.8

Field Value
Value 6.8
Uncertainty 0.1
Num. used stations 11
Type of magnitude Mwp
Reference to an origin 61985781
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-10-16 01:22:15

Mwpd:6.9

Field Value
Value 6.9
Uncertainty 0.1
Num. used stations 2
Type of magnitude Mwpd
Reference to an origin 61985781
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-10-16 01:22:15

mb:5.6

Field Value
Value 5.6
Uncertainty 0.1
Num. used stations 21
Type of magnitude mb
Reference to an origin 61985781
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-10-16 01:22:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GE.LUWI.BHZ. 2018-10-16T01:12:36.97 10.0 positive automatic P 288 49.9656 -0.339575 0.496539
GE.MMRI.BHZ. 2018-10-16T01:12:16.82 10.0 positive automatic P 278 47.2597 0.319652 0.613854
GE.SANI.BHZ. 2018-10-16T01:12:10.92 10.0 positive automatic P 289 46.6551 -0.841356 0.609944
IU.MBWA.BHZ.00 2018-10-16T01:12:07.90 10.0 negative automatic P 261 46.1406 0.151552 0.641204
GE.SOEI.BHZ. 2018-10-16T01:12:00.02 10.0 positive automatic P 278 44.9862 1.26792 0.639017
IU.GUMO.BHZ.00 2018-10-16T01:11:38.85 10.0 positive automatic P 323 42.7862 -2.07304 0.634136
GE.BNDI.BHZ. 2018-10-16T01:11:35.22 10.0 positive automatic P 288 42.0418 0.383988 0.691962
GE.FAKI.BHZ. 2018-10-16T01:11:23.42 10.0 negative automatic P 292 40.7791 -1.07001 0.732345
IU.XMAS.BHZ.00 2018-10-16T01:11:21.40 10.0 negative automatic P 58 40.0709 2.78318 0.745926
AU.FORT.BHZ. 2018-10-16T01:11:01.67 10.0 negative automatic P 247 38.0516 -0.0620305 0.785337
AU.WRKA.BHZ. 2018-10-16T01:10:59.72 10.0 negative automatic P 257 37.846 -0.358102 0.762186
AU.MTN.BHZ. 2018-10-16T01:10:57.20 10.0 negative automatic P 277 37.6042 -0.75457 0.803775
AU.KDU.BHZ. 2018-10-16T01:10:47.22 10.0 negative automatic P 278 36.422 -0.657146 0.808261
GE.GENI.BHZ. 2018-10-16T01:10:32.02 10.0 negative automatic P 300 34.3381 2.06512 0.803099
AU.HTT.BHZ. 2018-10-16T01:09:47.22 10.0 negative automatic P 240 29.4057 0.469275 0.941176
II.TAU.BHZ.00 2018-10-16T01:09:35.77 10.0 positive automatic P 216 28.1331 0.434479 0.909091
AU.COEN.BHZ. 2018-10-16T01:09:18.85 10.0 negative automatic P 283 26.2054 0.799784 0.963855
IU.PMG.BHZ.00 2018-10-16T01:09:04.52 10.0 negative automatic P 296 24.7533 -0.307675 0.952381
AU.QLP.BHZ. 2018-10-16T01:08:54.55 10.0 negative automatic P 253 23.5416 0.787173 0.941176
NZ.ODZ.HHZ.10 2018-10-16T01:08:50.97 10.0 positive automatic P 178 23.3557 -0.884543 0.749064
G.CAN.BHZ.00 2018-10-16T01:08:43.90 10.0 negative automatic P 228 22.514 0.870665 0.833333
AU.NIUE.BHZ. 2018-10-16T01:08:07.47 10.0 negative automatic P 86 19.4259 -2.11184 0.941176
AU.ARMA.BHZ. 2018-10-16T01:07:58.52 10.0 positive automatic P 238 18.2474 1.88041 0.888889
NZ.URZ.HHZ.10 2018-10-16T01:07:50.08 10.0 negative automatic P 160 17.7945 -0.814078 0.784314
IU.FUNA.BHZ.00 2018-10-16T01:07:27.67 10.0 positive automatic P 37 16.1378 -2.36194 0.879121
II.MSVF.BHZ.00 2018-10-16T01:05:55.17 10.0 positive automatic P 65 8.9508 2.5677 0.888889
AU.NFK.BHZ. 2018-10-16T01:05:30.97 10.0 positive automatic P 191 7.4753 -1.28845 0.963855
ND.KOUNC.BHZ.00 2018-10-16T01:04:59.12 10.0 negative automatic P 282 5.0179 0.636042 0.851064
ND.ONTNC.BHZ.00 2018-10-16T01:04:28.99 10.0 positive automatic P 257 2.9072 -0.472517 0.909091
ND.MARNC.BHZ.00 2018-10-16T01:04:07.49 10.0 positive automatic P 279 1.4047 -1.29734 0.851064
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