Earthquake with magnitude of Mwp 6.3 on date 13-12-2017 and time 19:03:48 (Italy) in region Bouvet I. [Sea]

A magnitude Mwp 6.3 earthquake occured in region: Bouvet I. [Sea], on

  • 13-12-2017 18:03:48 (UTC)
  • 13-12-2017 19:03:48 (UTC +01:00) Italian time
  • 13-12-2017 18:03:48 (UTC +00:00) local time in the region of the earthquake (Antarctica/Troll)

and geographic coordinates (lat, lon) -53.92, 2.01 at 1 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 5.4
Mwp 6.3

Mwpd 6.4
2017-12-13
18:03:48
-53.92 2.01 1 2017-12-13
18:29:31
Sala Sismica INGV-Roma 52573921
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-12-13 18:03:48
Latitude -53.92
Longitude 2.01
Depth (km) 1 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 52573921

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 25920
Semi-minor axis of confidence ellipse (meter) 1264
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 328
Circular confidence region, given by single value of horizontal uncertainty (meter) 20925.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 97.8342
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 33
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 2.78502
Epicentral distance of station closest to the epicenter (degree) 22.29242
Epicentral distance of station farthest from the epicenter (degree) 137.95092
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 33
Magnitudes information

Mwp:6.3

Field Value
Value 6.3
Uncertainty 0.1
Num. used stations 8
Type of magnitude Mwp
Reference to an origin 52573921
Agency INGV
Autore Auto added
Time of creation (UTC) 2017-12-13 18:29:31

Mwpd:6.4

Field Value
Value 6.4
Uncertainty 0.1
Num. used stations 8
Type of magnitude Mwpd
Reference to an origin 52573921
Agency INGV
Autore Auto added
Time of creation (UTC) 2017-12-13 18:29:31

mb:5.4

Field Value
Value 5.4
Uncertainty 0.1
Num. used stations 28
Type of magnitude mb
Reference to an origin 52573921
Agency INGV
Autore Auto added
Time of creation (UTC) 2017-12-13 18:29:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
US.BOZ.BHZ.00 2017-12-13T18:20:34.10 10.0 positive automatic Pdiff 287 137.9509 11.2009 0
US.AGMN.BHZ.00 2017-12-13T18:19:58.85 10.0 positive automatic Pdiff 299 131.0722 6.74554 0
US.MVCO.BHZ.00 2017-12-13T18:19:40.43 10.0 positive automatic Pdiff 280 130.7572 -10.5909 0
US.EYMN.BHZ.00 2017-12-13T18:19:33.55 10.0 positive automatic Pdiff 301 128.6203 -7.67351 0
IU.CHTO.BHZ.00 2017-12-13T18:18:27.05 10.0 positive automatic Pdiff 84 109.1392 12.4412 0
HT.AGG.HHZ. 2017-12-13T18:17:10.24 10.0 positive automatic P 16 94.5753 0.723532 0.0618707
AU.QLP.BHZ. 2017-12-13T18:17:04.42 10.0 negative automatic P 147 93.1239 1.64801 0.0697942
IS.KZIT.BHZ. 2017-12-13T18:16:46.61 10.0 negative automatic P 27 89.335 1.42341 0.0901347
IU.MBWA.BHZ.00 2017-12-13T18:16:42.72 10.0 negative automatic P 124 87.9171 4.23199 0.0962962
GE.EIL.BHZ. 2017-12-13T18:16:41.00 10.0 positive automatic P 28 88.3149 0.621864 0.0967808
AU.WRKA.BHZ. 2017-12-13T18:16:41.07 10.0 negative automatic P 133 88.4894 -0.200065 0.101123
IU.OTAV.BHZ.00 2017-12-13T18:16:21.32 10.0 negative automatic P 278 84.5891 -1.35499 0.087091
AU.FORT.BHZ. 2017-12-13T18:16:19.12 10.0 positive automatic P 136 83.3428 3.3837 0.135505
IU.NWAO.BHZ.00 2017-12-13T18:15:47.42 10.0 negative automatic P 129 76.7785 7.11821 0.19696
II.TAU.BHZ.00 2017-12-13T18:15:47.62 10.0 negative automatic P 155 78.7146 -3.43901 0.178678
GE.LVC.BHZ.00 2017-12-13T18:13:59.27 10.0 negative automatic P 271 60.7547 -1.60578 0.0914528
C.GO02.BHZ. 2017-12-13T18:13:48.60 10.0 positive automatic P 269 59.2084 -1.58897 0.41295
IU.LCO.BHZ.00 2017-12-13T18:13:32.42 10.0 positive automatic P 265 56.9715 -2.04142 0.45585
C.GO04.BHZ. 2017-12-13T18:13:26.70 10.0 positive automatic P 264 56.1711 -2.03855 0.462478
C1.BO02.BHZ. 2017-12-13T18:13:02.25 10.0 positive automatic P 260 52.8231 -1.94142 0.260235
C.GO06.BHZ. 2017-12-13T18:12:45.65 10.0 negative automatic P 255 49.9043 3.2889 0.548899
IU.CASY.BHZ.00 2017-12-13T18:12:27.17 10.0 positive automatic P 149 48.3404 -2.99585 0
IU.SBA.BHZ.00 2017-12-13T18:12:23.70 10.0 positive automatic P 176 47.8897 -2.98803 0.538754
C1.LL02.BHZ. 2017-12-13T18:12:23.63 10.0 positive automatic P 251 47.7355 -1.91811 0.584685
G.COYC.BHZ.00 2017-12-13T18:12:17.10 10.0 positive automatic P 248 46.3542 2.37351 0.575017
GE.VOI.BHZ. 2017-12-13T18:12:13.50 10.0 positive automatic P 64 46.276 -0.745107 0.576282
IU.LSZ.BHZ.00 2017-12-13T18:11:52.92 10.0 positive automatic P 38 43.7147 -0.970682 0.203212
C.GO10.BHZ. 2017-12-13T18:11:37.15 10.0 negative automatic P 240 41.4361 1.87805 0.664482
C1.MG02.BHZ. 2017-12-13T18:11:32.80 10.0 negative automatic P 241 40.693 3.75016 0.725352
IU.TSUM.BHZ.00 2017-12-13T18:10:54.72 10.0 negative automatic P 25 36.7225 -1.20252 0.741237
GE.WIN.BHZ. 2017-12-13T18:10:27.20 10.0 positive automatic P 26 33.3572 0.225978 0.860392
II.SUR.BHZ.00 2017-12-13T18:09:15.67 10.0 positive automatic P 39 25.3626 -0.232335 0.97561
II.HOPE.BHZ.00 2017-12-13T18:08:43.87 10.0 positive automatic P 253 22.2924 -1.84636 0.833333
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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