Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Mwp 6.2 on date 04-02-2022 and time 21:25:12 (Italy) in region Southeast Indian Ridge [Sea]

A magnitude Mwp 6.2 earthquake occured in region: Southeast Indian Ridge [Sea], on

  • 04-02-2022 20:25:12 (UTC)
  • 04-02-2022 21:25:12 (UTC +01:00) Italian time
  • 05-02-2022 07:25:12 (UTC +11:00) local time in the region of the earthquake (Antarctica/Casey)

and geographic coordinates (lat, lon) -47.9040, 99.6130 at 4 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 5.3
Mwp 6.2
Mwpd 6.3 		2022-02-04
20:25:12		 -47.9039 99.613 4 2022-02-04
20:43:05		 Sala Sismica INGV-Roma 100601321
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-02-04 20:25:12
Latitude -47.9039
Longitude 99.6130
Depth (km) 4 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 100601321

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 12836
Semi-minor axis of confidence ellipse (meter) 8982
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 114
Circular confidence region, given by single value of horizontal uncertainty (meter) 12650.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 49.9217
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 41
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.3819
Epicentral distance of station closest to the epicenter (degree) 19.24255
Epicentral distance of station farthest from the epicenter (degree) 90.93139
Number of stations at which the event was observed 39
Number of stations from which data was used for origin computation 39
Magnitudes information

Mwpd:6.3

Field Value
Value 6.3
Uncertainty 0.1
Num. used stations 20
Type of magnitude Mwpd
Reference to an origin 100601321
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2022-02-04 20:43:05

Mwp:6.2

Field Value
Value 6.2
Uncertainty 0.1
Num. used stations 23
Type of magnitude Mwp
Reference to an origin 100601321
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2022-02-04 20:43:05

mb:5.3

Field Value
Value 5.3
Uncertainty 0.1
Num. used stations 35
Type of magnitude mb
Reference to an origin 100601321
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2022-02-04 20:43:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
AU.MTN.BHZ.00 2022-02-04T20:39:55.18 10.0 positive automatic S 47 4858.3257 7.97362 0
AU.ARMA.BHZ. 2022-02-04T20:39:46.97 10.0 positive automatic S 85 4771.6347 10.9287 0
GT.PLCA.BHZ.00 2022-02-04T20:38:18.05 10.0 negative automatic P 187 10093.3854 2.09685 0.085807
II.SIMI.BHZ.00 2022-02-04T20:38:12.50 10.0 positive automatic P 337 10071.9846 -2.62237 0.081379
II.RAYN.BHZ.00 2022-02-04T20:37:53.05 10.0 positive automatic P 312 9581.0427 -0.926026 0.110495
IU.TSUM.BHZ.00 2022-02-04T20:36:29.47 10.0 positive automatic P 262 7838.4204 2.01686 0.267149
GE.KMBO.BHZ.00 2022-02-04T20:36:29.82 10.0 negative automatic P 290 7880.9667 -0.0823888 0.205461
RM.SLV.BHZ. 2022-02-04T20:36:18.97 10.0 positive automatic P 4 7696.0074 -0.486151 0.269436
IU.CHTO.BHZ.00 2022-02-04T20:36:00.20 10.0 positive automatic P 359 7405.6758 -2.78157 0.286746
GT.LBTB.BHZ.00 2022-02-04T20:35:27.28 10.0 positive automatic P 264 6798.0063 0.186006 0.351895
AF.ALKP.BHZ. 2022-02-04T20:35:21.75 10.0 positive automatic P 257 6678.6924 2.0006 0.408977
II.SUR.BHZ.00 2022-02-04T20:35:18.02 10.0 positive automatic P 254 6605.7876 2.67274 0.418402
GT.BOSA.BHZ.00 2022-02-04T20:35:10.98 10.0 positive automatic P 260 6556.1151 -1.19413 0.405571
ND.KOUNC.BHZ.00 2022-02-04T20:35:05.55 10.0 positive automatic P 86 6444.5934 0.597224 0.429395
GE.HALK.BHZ. 2022-02-04T20:34:51.65 10.0 positive automatic P 337 6271.944 -2.3211 0.29912
NZ.URZ.HHZ.10 2022-02-04T20:34:42.36 10.0 negative automatic P 111 6105.7659 -0.858281 0.472428
GE.FAKI.BHZ. 2022-02-04T20:34:27.97 10.0 negative automatic P 42 5884.5318 -0.691347 0.472421
MY.SBM.BHZ. 2022-02-04T20:34:17.52 10.0 positive automatic P 16 5721.4617 -0.244817 0.516651
GE.SANI.BHZ. 2022-02-04T20:34:13.87 10.0 negative automatic P 35 5681.7792 -1.17915 0.522267
GE.SNAA.BHZ. 2022-02-04T20:33:55.81 10.0 positive automatic P 204 5414.6022 -1.09149 0.57391
NZ.ODZ.HHZ.10 2022-02-04T20:33:48.90 10.0 negative automatic P 114 5242.3191 4.11345 0.600124
IU.CTAO.BHZ.00 2022-02-04T20:33:39.65 10.0 positive automatic P 70 5172.1338 -0.213901 0.61816
AU.EIDS.BHZ. 2022-02-04T20:33:34.52 10.0 positive automatic P 80 5100.5277 -0.239315 0.587957
AU.KDU.BHZ.00 2022-02-04T20:33:22.73 10.0 positive automatic P 49 4947.5919 -1.06057 0.6389
GE.SOEI.BHZ. 2022-02-04T20:33:16.12 10.0 negative automatic P 37 4820.7966 1.33423 0
AU.MTN.BHZ.00 2022-02-04T20:33:16.28 10.0 positive automatic P 47 4858.3257 -1.07921 0.541114
AU.ARMA.BHZ. 2022-02-04T20:33:11.37 10.0 negative automatic P 85 4771.6347 0.150127 0.293065
GE.JAGI.BHZ. 2022-02-04T20:32:59.03 10.0 negative automatic P 22 4585.4211 1.60556 0.722249
AU.QLP.BHZ. 2022-02-04T20:32:52.22 10.0 positive automatic P 75 4511.3952 0.345624 0.63645
II.WRAB.BHZ.00 2022-02-04T20:32:42.15 10.0 negative automatic P 57 4392.4587 -0.863343 0.755584
GT.VNDA.BHZ.00 2022-02-04T20:32:25.90 10.0 positive automatic P 162 4176.7302 -0.739398 0.784398
AU.FITZ.BHZ. 2022-02-04T20:32:17.55 10.0 negative automatic P 44 4059.0369 -0.0747682 0.698528
II.TAU.BHZ.00 2022-02-04T20:31:50.02 10.0 positive automatic P 100 3698.4645 0.429868 0.881677
AU.HTT.BHZ. 2022-02-04T20:31:43.77 10.0 positive automatic P 78 3627.5244 -0.334094 0.864249
AU.WRKA.BHZ.00 2022-02-04T20:31:39.10 10.0 negative automatic P 55 3565.8306 -0.110822 0.846425
IU.MBWA.BHZ.00 2022-02-04T20:31:31.32 10.0 negative automatic P 38 3469.0719 -0.145227 0.427152
AU.FORT.BHZ.00 2022-02-04T20:30:59.33 10.0 negative automatic pP 62 3064.4991 0.198813 0.898876
AU.MORW.BHZ. 2022-02-04T20:30:13.82 10.0 negative automatic P 40 2519.7555 0.466684 0.869565
IU.NWAO.BHZ.00 2022-02-04T20:29:45.57 10.0 negative automatic P 48 2221.2987 1.13544 0.930233
G.PAF.BHZ.00 2022-02-04T20:29:37.10 10.0 negative automatic P 255 2149.293 -0.182947 0
IU.CASY.BHZ.00 2022-02-04T20:29:34.77 10.0 positive automatic P 167 2135.9286 -1.19323 0.909091
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