Earthquake with magnitude of Mwp 6.4 on date 19-04-2016 and time 07:25:42 (Italy) in region South Georgia & the South Sandwich Is. [Sea]

A magnitude Mwp 6.4 earthquake occured in region: South Georgia & the South Sandwich Is. [Sea], on

  • 19-04-2016 05:25:42 (UTC)
  • 19-04-2016 07:25:42 (UTC +02:00) Italian time
  • 19-04-2016 03:25:42 (UTC -02:00) local time in the region of the earthquake (Atlantic/South_Georgia)

and geographic coordinates (lat, lon) -55.51, -27.12 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
Reviewed
Rev100
mb 5.7
Mwp 6.4

Mwpd 6.4
2016-04-19
05:25:42
-55.51 -27.12 10 2016-04-19
05:45:11
Sala Sismica INGV-Roma 24467171
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-04-19 05:25:42
Latitude -55.51
Longitude -27.12
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 24467171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 19973
Semi-minor axis of confidence ellipse (meter) 7891
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 208
Circular confidence region, given by single value of horizontal uncertainty (meter) 16158.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 56.9862
Number of associated phases, regardless of their use for origin computation 54
Number of defining phases 54
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.98174
Epicentral distance of station closest to the epicenter (degree) 5.51892
Epicentral distance of station farthest from the epicenter (degree) 102.92446
Number of stations at which the event was observed 51
Number of stations from which data was used for origin computation 51
Magnitudes information

Mwpd:6.4

Field Value
Value 6.4
Uncertainty 0.1
Num. used stations 22
Type of magnitude Mwpd
Reference to an origin 24467171
Agency INGV
Autore early-est_ee1.1.8
Time of creation (UTC) 2016-04-19 05:45:11

Mwp:6.4

Field Value
Value 6.4
Uncertainty 0.1
Num. used stations 24
Type of magnitude Mwp
Reference to an origin 24467171
Agency INGV
Autore early-est_ee1.1.8
Time of creation (UTC) 2016-04-19 05:45:11

mb:5.7

Field Value
Value 5.7
Uncertainty 0.3
Num. used stations 51
Type of magnitude mb
Reference to an origin 24467171
Agency INGV
Autore early-est_ee1.1.8
Time of creation (UTC) 2016-04-19 05:45:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
II.WRAB.BHZ.00 2016-04-19T05:39:37.92 10.0 positive automatic Pdiff 162 102.9245 -1.06894 0
AU.QLP.BHZ. 2016-04-19T05:39:15.75 10.0 negative automatic P 172 97.568 0.659018 0.0494498
AU.MAW.BHZ. 2016-04-19T05:39:10.71 10.0 negative automatic ScP 144 40.3488 1.07649 0
AU.WRKA.BHZ. 2016-04-19T05:39:10.25 10.0 negative automatic P 158 96.7554 -1.23596 0.0535628
AU.ARMA.BHZ. 2016-04-19T05:39:01.82 10.0 positive automatic P 179 94.0592 2.56144 0.0667965
GT.CPUP.BHZ.00 2016-04-19T05:38:55.08 10.0 negative automatic ScP 311 36.4686 0.190171 0
AU.FORT.BHZ. 2016-04-19T05:38:47.25 10.0 positive automatic P 159 91.1284 1.67886 0.0875951
AU.MORW.BHZ. 2016-04-19T05:38:41.02 10.0 positive automatic P 148 89.7466 1.86553 0.0958576
AU.HTT.BHZ. 2016-04-19T05:38:40.77 10.0 negative automatic P 168 90.2544 -0.825673 0.0902346
G.CAN.BHZ.00 2016-04-19T05:38:35.75 10.0 positive automatic P 177 89.1049 -0.467211 0.0648359
NZ.OUZ.HHZ.10 2016-04-19T05:38:30.19 10.0 positive automatic P 197 87.5482 1.4524 0.112716
AU.TOO.BHZ. 2016-04-19T05:38:23.85 10.0 negative automatic P 174 86.6993 -0.860416 0.119482
CU.TGUH.BHZ.00 2016-04-19T05:38:18.78 10.0 positive automatic P 302 85.7989 -1.58316 0
NZ.URZ.HHZ.10 2016-04-19T05:38:12.25 10.0 positive automatic P 199 83.9705 1.26774 0.141247
GE.BOAB.BHZ. 2016-04-19T05:38:06.70 10.0 positive automatic P 303 83.6316 -2.60047 0.133228
CU.SDDR.BHZ.00 2016-04-19T05:38:06.38 10.0 positive automatic P 318 83.3356 -1.43738 0.141871
GE.SNAA.BHZ. 2016-04-19T05:38:00.81 10.0 negative automatic ScP 157 19.1363 -1.70598 0
IU.SNZO.BHZ.00 2016-04-19T05:37:58.07 10.0 positive automatic P 196 81.413 0.384858 0.162054
II.JTS.BHZ.00 2016-04-19T05:37:57.12 10.0 positive automatic P 303 81.405 -0.56066 0.162126
II.TAU.BHZ.00 2016-04-19T05:37:56.97 10.0 positive automatic P 176 81.4619 -0.976276 0.161616
NZ.KHZ.HHZ.10 2016-04-19T05:37:52.21 10.0 negative automatic P 195 80.5103 -0.644123 0.1719
NZ.ODZ.HHZ.10 2016-04-19T05:37:42.65 10.0 positive automatic P 193 78.3266 1.65876 0.195613
CU.ANWB.BHZ.00 2016-04-19T05:37:42.05 10.0 positive automatic P 326 78.8335 -1.68753 0.181719
CU.BCIP.BHZ.00 2016-04-19T05:37:37.95 10.0 positive automatic P 307 78.0306 -1.35828 0
IU.KMBO.BHZ.00 2016-04-19T05:37:28.07 10.0 negative automatic P 69 74.8642 6.38424 0.215917
G.FDF.BHZ.00 2016-04-19T05:37:26.00 10.0 positive automatic P 326 75.8609 -1.16029 0
IU.SDV.BHZ.00 2016-04-19T05:37:13.42 10.0 positive automatic P 315 73.8296 -2.18829 0.237307
CU.GRGR.BHZ.00 2016-04-19T05:37:12.50 10.0 positive automatic P 325 73.568 -1.32179 0.240159
II.MBAR.BHZ.00 2016-04-19T05:37:08.12 10.0 positive automatic P 63 71.9454 3.72993 0
IU.KOWA.BHZ.00 2016-04-19T05:37:07.27 10.0 positive automatic P 23 72.6655 -1.2392 0.228376
II.ABPO.BHZ.00 2016-04-19T05:36:30.27 10.0 positive automatic P 88 65.6043 5.36987 0.305967
GT.DBIC.BHZ.00 2016-04-19T05:36:17.90 10.0 positive automatic P 25 64.8635 -1.9523 0.348895
II.NNA.BHZ.00 2016-04-19T05:35:33.32 10.0 negative automatic P 298 58.0394 -0.474112 0.429683
IU.CASY.BHZ.00 2016-04-19T05:35:06.52 10.0 negative automatic P 160 54.1068 0.950845 0.244197
GT.LPAZ.BHZ.00 2016-04-19T05:34:36.33 10.0 positive automatic P 305 50.1081 -0.306242 0.578871
IU.TSUM.BHZ.00 2016-04-19T05:34:30.77 10.0 negative automatic P 61 49.3699 0.364883 0.266554
GT.LBTB.BHZ.00 2016-04-19T05:34:25.05 10.0 negative automatic P 74 48.7478 -0.561098 0.595216
GT.VNDA.BHZ.00 2016-04-19T05:34:09.90 10.0 positive automatic P 183 46.8514 -0.836018 0.599604
IU.SBA.BHZ.00 2016-04-19T05:34:08.12 10.0 positive automatic P 184 46.3622 1.23757 0.615006
GT.BOSA.BHZ.00 2016-04-19T05:34:01.55 10.0 negative automatic P 76 45.7169 -0.463083 0.641122
GE.LVC.BHZ.00 2016-04-19T05:33:57.07 10.0 positive automatic P 300 45.03 0.228152 0.638254
C.GO03.BHZ. 2016-04-19T05:33:27.70 10.0 positive automatic P 294 41.5694 -0.815437 0.725986
II.SUR.BHZ.00 2016-04-19T05:33:20.27 10.0 negative automatic P 75 40.376 1.41278 0.740067
IU.LCO.BHZ.00 2016-04-19T05:33:20.52 10.0 positive automatic P 292 40.6685 -0.843008 0.701079
AU.MAW.BHZ. 2016-04-19T05:33:17.96 10.0 positive automatic P 144 40.3488 -0.368174 0.749511
GT.CPUP.BHZ.00 2016-04-19T05:32:44.85 10.0 positive automatic P 311 36.4686 -0.856464 0.836877
IU.QSPA.BHZ.00 2016-04-19T05:32:28.17 10.0 positive automatic P 180 34.5571 -1.58069 0.817039
GT.PLCA.BHZ.00 2016-04-19T05:32:05.30 10.0 negative automatic P 279 31.8465 -0.478454 0.891573
G.COYC.BHZ.00 2016-04-19T05:31:45.45 10.0 negative automatic P 270 29.6444 -0.753144 0.869565
C.GO10.BHZ. 2016-04-19T05:31:12.18 10.0 negative automatic P 257 25.2892 4.95479 0.963855
IU.PMSA.BHZ.00 2016-04-19T05:30:14.62 10.0 positive automatic P 228 20.1891 -0.698268 0.421053
GE.SNAA.BHZ. 2016-04-19T05:30:02.01 10.0 positive automatic P 157 19.1363 -1.9435 0.909091
II.EFI.BHZ.00 2016-04-19T05:29:57.87 10.0 negative automatic P 269 18.5952 -0.0154081 0.952381
II.HOPE.BHZ.00 2016-04-19T05:27:02.87 10.0 positive automatic P 279 5.5189 0.0948861 0.952381
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