Earthquake with magnitude of Mwp 6.9 on date 07-12-2023 and time 12:56:32 (UTC) in region Vanuatu Islands [Sea: Vanuatu]

A magnitude Mwp 6.9 earthquake occured in region: Vanuatu Islands [Sea: Vanuatu], on

  • 07-12-2023 12:56:32 (UTC)
  • 07-12-2023 13:56:32 (UTC +01:00) Italian time
  • 07-12-2023 23:56:32 (UTC +11:00) local time in the region of the earthquake (Pacific/Efate)

and geographic coordinates (lat, lon) -20.4640, 169.3710 at 64 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
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
mb 5.6
Mwp 6.9

Mwpd 7.0
2023-12-07
12:56:32
-20.4645 169.371 64 2023-12-07
13:09:56
Sala Sismica INGV-Roma 123875461
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-07 12:56:32
Latitude -20.4645
Longitude 169.3710
Depth (km) 64 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 123875461

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 15733203
Semi-minor axis of confidence ellipse (meter) 513242
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 356
Circular confidence region, given by single value of horizontal uncertainty (meter) 12706700.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 64.0007
Number of associated phases, regardless of their use for origin computation 1
Number of defining phases 1
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.790295
Epicentral distance of station closest to the epicenter (degree)
Epicentral distance of station farthest from the epicenter (degree)
Number of stations at which the event was observed 0
Number of stations from which data was used for origin computation 0
Magnitudes information

Mwp:6.9

Field Value
Value 6.9
Uncertainty 0.1
Num. used stations 23
Type of magnitude Mwp
Reference to an origin 123875461
Agency INGV
Autore Auto added
Time of creation (UTC) 2023-12-07 13:09:56

Mwpd:7.0

Field Value
Value 7.0
Uncertainty 0.1
Num. used stations 26
Type of magnitude Mwpd
Reference to an origin 123875461
Agency INGV
Autore Auto added
Time of creation (UTC) 2023-12-07 13:09:56

mb:5.6

Field Value
Value 5.6
Uncertainty 0.1
Num. used stations 23
Type of magnitude mb
Reference to an origin 123875461
Agency INGV
Autore Auto added
Time of creation (UTC) 2023-12-07 13:09:56
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