Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Mwp 6.1 on date 27-02-2016 and time 22:29:45 (Italy) in region Western Indian Antarctic Ridge [Sea]

A magnitude Mwp 6.1 earthquake occured in region: Western Indian Antarctic Ridge [Sea], on

  • 27-02-2016 21:29:45 (UTC)
  • 27-02-2016 22:29:45 (UTC +01:00) Italian time
  • 28-02-2016 08:29:45 (UTC +11:00) local time in the region of the earthquake (Australia/Hobart)

and geographic coordinates (lat, lon) -51.6730, 139.4490 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.

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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 5.5
Mwp 6.1
Mwpd 6.3 		2016-02-27
21:29:45		 -51.6727 139.449 1 2016-02-27
22:02:20		 Sala Sismica INGV-Roma 23640641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-02-27 21:29:45
Latitude -51.6727
Longitude 139.4490
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 23640641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 13292
Semi-minor axis of confidence ellipse (meter) 5944
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 149
Circular confidence region, given by single value of horizontal uncertainty (meter) 11066.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 73.6146
Number of associated phases, regardless of their use for origin computation 50
Number of defining phases 50
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.13979
Epicentral distance of station closest to the epicenter (degree) 10.24705
Epicentral distance of station farthest from the epicenter (degree) 89.84984
Number of stations at which the event was observed 47
Number of stations from which data was used for origin computation 47
Magnitudes information

Mwp:6.1

Field Value
Value 6.1
Uncertainty 0.2
Num. used stations 24
Type of magnitude Mwp
Reference to an origin 23640641
Agency INGV
Autore early-est_ee1.1.8
Time of creation (UTC) 2016-02-27 22:02:21

Mwpd:6.3

Field Value
Value 6.3
Uncertainty 0.2
Num. used stations 20
Type of magnitude Mwpd
Reference to an origin 23640641
Agency INGV
Autore early-est_ee1.1.8
Time of creation (UTC) 2016-02-27 22:02:21

mb:5.5

Field Value
Value 5.5
Uncertainty 0.3
Num. used stations 40
Type of magnitude mb
Reference to an origin 23640641
Agency INGV
Autore early-est_ee1.1.8
Time of creation (UTC) 2016-02-27 22:02:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IU.INCN.BHZ.00 2016-02-27T21:42:44.57 10.0 negative automatic P 350 9973.3278 0.574824 0
IU.MAJO.BHZ.00 2016-02-27T21:42:36.12 10.0 positive automatic P 359 9792.5532 -0.280547 0.0995676
G.INU.BHZ.00 2016-02-27T21:42:35.36 10.0 positive automatic P 358 9661.9617 4.65739 0.118239
G.COYC.BHZ.00 2016-02-27T21:41:50.40 10.0 negative automatic P 158 8772.4521 1.16348 0.171868
IU.CHTO.BHZ.00 2016-02-27T21:41:48.15 10.0 negative automatic P 321 8752.1835 -0.128791 0.179487
II.EFI.BHZ.00 2016-02-27T21:41:30.32 10.0 negative automatic P 169 8391.2337 0.354768 0.203923
GE.VOI.BHZ. 2016-02-27T21:41:26.40 10.0 positive automatic P 254 8272.7967 2.44128 0.229756
TM.UBPT.BHZ. 2016-02-27T21:41:18.43 10.0 negative automatic P 326 8122.5582 2.56358 0.250418
MY.KUM.BHZ. 2016-02-27T21:40:30.32 10.0 negative automatic P 317 7310.4711 -0.335939 0.324089
PS.PSI.BHZ. 2016-02-27T21:40:20.31 10.0 negative automatic P 314 7134.6027 -0.197088 0.34428
GE.GSI.BHZ. 2016-02-27T21:40:17.32 10.0 positive automatic P 312 7065.1833 1.08054 0.360808
MY.LDM.BHZ. 2016-02-27T21:39:52.12 10.0 negative automatic P 336 6615.6111 3.20814 0
MY.SBM.BHZ. 2016-02-27T21:39:45.12 10.0 negative automatic P 328 6531.7728 1.42501 0.390848
MY.KSM.BHZ. 2016-02-27T21:39:44.07 10.0 negative automatic P 325 6502.0914 2.26611 0.279127
GE.SNAA.BHZ. 2016-02-27T21:39:07.76 10.0 negative automatic P 194 5973.1653 -0.125178 0.481731
GE.LUWI.BHZ. 2016-02-27T21:38:58.52 10.0 positive automatic P 339 5831.496 0.187299 0.501232
GE.SANI.BHZ. 2016-02-27T21:38:45.07 10.0 negative automatic P 343 5648.7456 -0.967606 0
II.KAPI.BHZ.00 2016-02-27T21:38:35.82 10.0 positive automatic P 334 5487.9954 0.721214 0.576314
GE.GENI.BHZ. 2016-02-27T21:38:32.27 10.0 negative automatic P 1 5448.0354 -0.0278042 0.429156
GE.JAGI.BHZ. 2016-02-27T21:38:24.97 10.0 negative automatic P 325 5319.3198 1.58747 0
GE.SOEI.BHZ. 2016-02-27T21:37:51.67 10.0 positive automatic P 338 4852.2318 1.38426 0.661637
GE.PMG.BHZ.00 2016-02-27T21:37:41.77 10.0 positive automatic P 11 4743.03 -0.39077 0.649202
G.SANVU.BHZ.00 2016-02-27T21:37:38.45 10.0 positive automatic P 42 4711.1397 -1.37297 0.669068
AU.MTN.BHZ. 2016-02-27T21:37:14.07 10.0 positive automatic P 347 4373.9328 -0.717621 0.758813
AU.KDU.BHZ. 2016-02-27T21:37:13.77 10.0 negative automatic P 349 4372.3233 -0.880224 0.77761
AU.COEN.BHZ. 2016-02-27T21:37:00.22 10.0 positive automatic P 6 4199.4075 -1.38583 0.818919
ND.KOUNC.BHZ.00 2016-02-27T21:36:52.24 10.0 positive automatic P 41 4067.2953 0.777395 0.794526
G.DZM.BHZ.00 2016-02-27T21:36:48.25 10.0 negative automatic P 45 4018.9659 0.367167 0.822226
AU.FITZ.BHZ. 2016-02-27T21:36:39.74 10.0 positive automatic P 337 3917.8338 -0.188723 0.811766
II.WRAB.BHZ.00 2016-02-27T21:36:09.87 10.0 positive automatic P 351 3550.5681 -1.29419 0.868442
NZ.URZ.HHZ.10 2016-02-27T21:35:46.30 10.0 positive automatic P 78 3262.5564 -1.91281 0.97561
AU.MORW.BHZ. 2016-02-27T21:35:40.70 10.0 positive automatic P 313 3166.7301 0.120906 0.941176
AU.WRKA.BHZ. 2016-02-27T21:35:35.27 10.0 positive automatic P 338 3103.5378 -0.282089 0.941176
AU.EIDS.BHZ. 2016-02-27T21:35:33.70 10.0 negative automatic P 23 3080.6274 0.05447 0.869565
GT.VNDA.BHZ.00 2016-02-27T21:35:27.05 10.0 positive automatic P 170 3012.8508 -1.10333 0.963855
IU.SNZO.BHZ.00 2016-02-27T21:35:18.17 10.0 positive automatic P 81 2893.8033 -0.295716 0.43956
AU.QLP.BHZ. 2016-02-27T21:35:12.15 10.0 positive automatic P 10 2813.6391 0.213637 0.888889
NZ.KHZ.HHZ.10 2016-02-27T21:35:06.06 10.0 positive automatic P 82 2744.6859 -0.199479 0.952381
AU.ARMA.BHZ. 2016-02-27T21:34:50.60 10.0 positive automatic P 28 2562.0354 -0.110705 0.91954
AU.FORT.BHZ. 2016-02-27T21:34:44.57 10.0 positive automatic P 334 2499.5424 -0.00569575 0.97561
NZ.ODZ.HHZ.10 2016-02-27T21:34:36.89 10.0 negative automatic P 84 2394.3477 2.42475 0.938967
IU.CASY.BHZ.00 2016-02-27T21:34:22.32 10.0 positive automatic P 214 2277.0318 -0.683308 0.909091
AU.HTT.BHZ. 2016-02-27T21:33:58.05 10.0 positive automatic P 359 2025.2283 0.00916694 0.941176
G.CAN.BHZ.00 2016-02-27T21:33:51.75 10.0 positive automatic P 26 1967.3085 0.146011 0.43956
AU.MILA.BHZ. 2016-02-27T21:33:31.55 10.0 positive automatic P 29 1792.3503 -0.186209 0.963855
AU.TOO.BHZ. 2016-02-27T21:33:12.72 10.0 positive automatic P 19 1634.9079 -0.247189 0.91954
II.TAU.BHZ.00 2016-02-27T21:32:12.97 10.0 positive automatic P 34 1137.417 1.33434 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