Earthquake with magnitude of Mwp 6.3 on date 08-02-2020 and time 15:33:13 (Italy) in region South Georgia & the South Sandwich Is. [Sea]

A magnitude Mwp 6.3 earthquake occured in region: South Georgia & the South Sandwich Is. [Sea], on

  • 08-02-2020 14:33:13 (UTC)
  • 08-02-2020 15:33:13 (UTC +01:00) Italian time
  • 08-02-2020 12:33:13 (UTC -02:00) local time in the region of the earthquake (Atlantic/South_Georgia)

and geographic coordinates (lat, lon) -59.72, -26.07 at 117 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

These three maps show the results of the analysis using the software ShakeMap designed to provide the level of ground shaking experienced in a region using the data recorded by seismometers and strong motion instruments and seismological information regarding the attenuation of the wavefield with distance and the site characteristics. The Shakemaps are determined for research purposes to provide fast estimates of the level of ground shaking produced by the earthquake. The maps are calculated automatically and adjourned progressively as more data become available. See http://shakemap.rm.ingv.it/ for additional information.

The red star indicates the epicenter. The red triangles show the stations of the INGV Italian National Seismic Network and the blue triangles those of the Nationa Accelerometric Network of the Dipartimento della Protezione Civile.

Intensity Shakemap

Intensity Shakemap

This map shows the distribution of the istrumentally derived intensities. To this purpose, it is used a conversion relation between ground acceleration and velocity, and the Mercalli Modificata (MMI - Modified Mercalli Intensity) scale. In general, the Mercalli intensity scale relies on the effects that the ground shaking produces as reported by an observer.
Peak ground acceleration Shakemap

Peak ground acceleration Shakemap

This map shows This map shows the distribution of peak ground acceleration expressed as per cent of the acceleration of gravity (i.e., g = 9.81 m/s²).
Peak velocity Shakemap

Peak velocity Shakemap

This map shows the distribution of peak ground velocities expressed in cm/s.
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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
Reviewed
Rev100
mb 5.2
Mwp 6.3

Mwpd 6.4
2020-02-08
14:33:13
-59.72 -26.07 117 2020-02-08
14:51:16
Sala Sismica INGV-Roma 76347271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-08 14:33:13
Latitude -59.72
Longitude -26.07
Depth (km) 117 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 76347271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 18695
Semi-minor axis of confidence ellipse (meter) 15033
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 305
Circular confidence region, given by single value of horizontal uncertainty (meter) 16676.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69.442
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.42346
Epicentral distance of station closest to the epicenter (degree) 7.8441
Epicentral distance of station farthest from the epicenter (degree) 123.65955
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 28
Magnitudes information

Mwpd:6.4

Field Value
Value 6.4
Uncertainty 0.1
Num. used stations 11
Type of magnitude Mwpd
Reference to an origin 76347271
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2020-02-08 14:51:16

Mwp:6.3

Field Value
Value 6.3
Uncertainty 0.1
Num. used stations 13
Type of magnitude Mwp
Reference to an origin 76347271
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2020-02-08 14:51:16

mb:5.2

Field Value
Value 5.2
Uncertainty 0.1
Num. used stations 23
Type of magnitude mb
Reference to an origin 76347271
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2020-02-08 14:51:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
US.AHID.BHZ.00 2020-02-08T14:48:22.80 10.0 positive automatic Pdiff 299 123.6596 -6.77204 0
GE.MALK.BHZ. 2020-02-08T14:47:21.72 10.0 positive automatic Pdiff 100 105.5813 12.8366 0
IU.TEIG.BHZ.00 2020-02-08T14:46:17.85 10.0 negative automatic PcP 304 94.4691 -1.6285 0
AU.HTT.BHZ. 2020-02-08T14:45:40.00 10.0 positive automatic P 167 86.018 1.33583 0.109124
IU.OTAV.BHZ.00 2020-02-08T14:44:24.47 10.0 positive automatic P 304 72.2896 -1.04497 0.205513
GT.DBIC.BHZ.00 2020-02-08T14:43:59.53 10.0 positive automatic P 23 68.4954 -2.33419 0.137967
IU.LSZ.BHZ.00 2020-02-08T14:43:03.42 10.0 positive automatic P 66 59.2221 2.12118 0.422727
GT.LPAZ.BHZ.00 2020-02-08T14:42:16.58 10.0 positive automatic P 306 53.021 -1.26049 0.493929
GT.LBTB.BHZ.00 2020-02-08T14:41:49.93 10.0 negative automatic P 69 49.564 -1.49794 0.513301
GT.BOSA.BHZ.00 2020-02-08T14:41:25.33 10.0 negative automatic P 71 46.3539 -1.40843 0.575183
C.GO03.BHZ. 2020-02-08T14:41:07.90 10.0 positive automatic P 297 43.8996 0.658266 0.68229
GT.VNDA.BHZ.00 2020-02-08T14:41:00.73 10.0 positive automatic P 183 42.6696 2.01852 0.579586
IU.LCO.BHZ.00 2020-02-08T14:40:59.07 10.0 negative automatic P 295 42.8939 -0.372467 0.676602
C.GO04.BHZ. 2020-02-08T14:40:53.15 10.0 positive automatic P 294 41.9509 1.37035 0
C1.CO02.BHZ. 2020-02-08T14:40:45.55 10.0 positive automatic P 293 41.1729 0.269901 0
GT.CPUP.BHZ.00 2020-02-08T14:40:31.73 10.0 positive automatic P 313 39.707 -1.30822 0.665939
G.PEL.BHZ.00 2020-02-08T14:40:30.90 10.0 negative automatic P 292 39.4007 0.310212 0.759087
C.GO05.BHZ. 2020-02-08T14:40:22.10 10.0 positive automatic P 289 38.4593 -0.542287 0.358842
C1.BO02.BHZ. 2020-02-08T14:40:20.50 10.0 positive automatic P 291 38.0918 0.790593 0.362187
AU.MAW.BHZ. 2020-02-08T14:40:09.40 10.0 positive automatic P 140 36.6749 1.80051 0.803422
C.GO06.BHZ. 2020-02-08T14:39:49.35 10.0 positive automatic P 285 34.6018 -0.758123 0.876078
GT.PLCA.BHZ.00 2020-02-08T14:39:37.53 10.0 positive automatic P 285 33.268 -1.0123 0.862421
C1.LL02.BHZ. 2020-02-08T14:39:27.48 10.0 negative automatic P 280 32.0656 -0.459978 0.829354
IU.QSPA.BHZ.00 2020-02-08T14:39:11.77 10.0 negative automatic P 180 30.3454 -1.48169 0.863082
C.GO10.BHZ. 2020-02-08T14:38:27.98 10.0 negative automatic P 265 25.1822 1.14592 0.941176
II.EFI.BHZ.00 2020-02-08T14:37:30.80 10.0 positive automatic P 280 19.4968 0.692112 0.952381
IU.PMSA.BHZ.00 2020-02-08T14:37:16.97 10.0 positive automatic P 238 18.0818 2.29971 0.10989
II.HOPE.BHZ.00 2020-02-08T14:35:05.02 10.0 positive automatic P 309 7.8441 1.44107 0.43956
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