Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Mwp 6.0 on date 25-12-2019 and time 20:20:14 (UTC) in region Southern East Pacific Rise [Sea]

A magnitude Mwp 6.0 earthquake occured in region: Southern East Pacific Rise [Sea], on

  • 25-12-2019 20:20:14 (UTC)
  • 25-12-2019 21:20:14 (UTC +01:00) Italian time
  • 25-12-2019 15:20:14 (UTC -05:00) local time in the region of the earthquake (Pacific/Easter)

and geographic coordinates (lat, lon) -25.0240, -115.8700 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 5.2
Mwp 6.0
Mwpd 6.0 		2019-12-25
20:20:14		 -25.0242 -115.87 1 2019-12-25
20:52:36		 Sala Sismica INGV-Roma 74974581
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-25 20:20:14
Latitude -25.0242
Longitude -115.8700
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 74974581

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 22295
Semi-minor axis of confidence ellipse (meter) 13125
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 104
Circular confidence region, given by single value of horizontal uncertainty (meter) 17995.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 65.6139
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 39
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 2.19985
Epicentral distance of station closest to the epicenter (degree) 39.77865
Epicentral distance of station farthest from the epicenter (degree) 153.98721
Number of stations at which the event was observed 38
Number of stations from which data was used for origin computation 38
Magnitudes information

Mwpd:6.0

Field Value
Value 6.0
Uncertainty 0.0
Num. used stations 9
Type of magnitude Mwpd
Reference to an origin 74974581
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2019-12-25 20:52:36

Mwp:6.0

Field Value
Value 6.0
Uncertainty 0.0
Num. used stations 9
Type of magnitude Mwp
Reference to an origin 74974581
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2019-12-25 20:52:36

mb:5.2

Field Value
Value 5.2
Uncertainty 0.1
Num. used stations 32
Type of magnitude mb
Reference to an origin 74974581
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2019-12-25 20:52:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IU.MAKZ.BHZ.00 2019-12-25T20:40:13.80 10.0 positive automatic PKPdf 331 153.9872 7.93963 0.0187135
II.BORK.BHZ.00 2019-12-25T20:40:05.95 10.0 positive automatic PKPdf 352 151.5863 3.65623 0.0177778
II.ARTI.BHZ.00 2019-12-25T20:39:59.02 10.0 negative automatic PKPdf 6 148.3535 1.83007 0.0192771
IU.CHTO.BHZ.00 2019-12-25T20:39:56.07 10.0 positive automatic PKPdf 266 147.1975 0.777908 0.0192771
GE.TIRR.BHZ. 2019-12-25T20:39:52.06 10.0 negative automatic PKPdf 47 145.2166 0.180667 0.0181818
HL.RDO.HHZ. 2019-12-25T20:39:48.58 10.0 negative automatic PKPdf 54 144.2506 -1.62837 0.0193705
AU.TOO.BHZ.00 2019-12-25T20:32:32.15 10.0 positive automatic P 232 81.3668 1.2182 0.168482
II.FFC.BHZ.00 2019-12-25T20:32:25.07 10.0 positive automatic P 8 80.6356 -1.92114 0.151116
AU.ARMA.BHZ. 2019-12-25T20:32:22.95 10.0 negative automatic P 241 79.6220 1.29722 0.172376
US.LONY.BHZ.00 2019-12-25T20:32:19.30 10.0 positive automatic P 29 79.1884 0.133033 0.180493
US.BINY.BHZ.00 2019-12-25T20:32:04.93 10.0 negative automatic P 29 76.6430 -0.091429 0.202884
IU.SSPA.BHZ.00 2019-12-25T20:31:57.45 10.0 negative automatic P 29 74.5402 4.51971 0.209674
US.NLWA.BHZ.00 2019-12-25T20:31:46.75 10.0 negative automatic P 354 72.7711 4.16452 0.24036
US.NEW.BHZ.00 2019-12-25T20:31:44.50 10.0 positive automatic P 359 73.2938 -1.20054 0.237505
US.BLA.BHZ.00 2019-12-25T20:31:33.58 10.0 negative automatic P 29 70.6030 4.04093 0.27044
US.HWUT.BHZ.00 2019-12-25T20:31:12.30 10.0 negative automatic P 4 66.7475 6.62317 0.30945
US.KSU1.BHZ.00 2019-12-25T20:31:03.78 10.0 positive automatic P 16 66.6034 -0.719444 0.294295
US.ISCO.BHZ.00 2019-12-25T20:30:56.48 10.0 negative automatic P 9 65.5234 -1.49496 0.328329
GT.VNDA.BHZ.00 2019-12-25T20:30:45.43 10.0 positive automatic P 194 63.9365 -1.7354 0.352783
US.SDCO.BHZ.00 2019-12-25T20:30:42.00 10.0 positive automatic P 9 63.5185 -2.82362 0.350073
US.MIAR.BHZ.00 2019-12-25T20:30:41.60 10.0 negative automatic P 20 63.2085 -0.762415 0.366751
US.WMOK.BHZ.00 2019-12-25T20:30:33.45 10.0 negative automatic P 16 61.9167 -0.334068 0.379889
IU.ANMO.BHZ.00 2019-12-25T20:30:24.57 10.0 positive automatic P 9 60.6271 -0.708151 0.341475
NZ.OUZ.HHZ.10 2019-12-25T20:30:24.46 10.0 positive automatic P 242 60.6140 -0.426958 0.379167
US.WUAZ.BHZ.00 2019-12-25T20:30:24.93 10.0 negative automatic P 4 60.6877 -0.725097 0.330727
IU.HKT.BHZ.00 2019-12-25T20:30:08.65 10.0 positive automatic P 20 58.2428 0.231383 0.436903
US.MNTX.BHZ.00 2019-12-25T20:30:03.63 10.0 positive automatic P 11 57.5986 -0.405352 0.451832
US.JCT.BHZ.00 2019-12-25T20:30:02.35 10.0 negative automatic P 16 57.5962 -1.69523 0.340956
IU.TUC.BHZ.00 2019-12-25T20:30:02.75 10.0 negative automatic P 5 57.5365 -0.936887 0.427045
MX.HSIG.BHZ. 2019-12-25T20:29:39.49 10.0 negative automatic P 5 54.2480 -0.500778 0.38717
GT.CPUP.BHZ.00 2019-12-25T20:29:24.70 10.0 negative automatic P 105 52.3014 -0.943933 0.482908
GT.LPAZ.BHZ.00 2019-12-25T20:28:32.40 10.0 positive automatic P 88 45.2854 -0.136257 0.64121
IU.OTAV.BHZ.00 2019-12-25T20:28:24.67 10.0 positive automatic P 61 44.1173 1.68469 0.625337
GT.PLCA.BHZ.00 2019-12-25T20:27:53.08 10.0 positive automatic P 124 40.6373 -1.13896 0.752979
IU.LCO.BHZ.00 2019-12-25T20:27:50.87 10.0 positive automatic P 106 40.1963 0.0949951 0.726219
C1.LL02.BHZ. 2019-12-25T20:27:50.48 10.0 negative automatic P 128 40.1301 0.578808 0.727464
C1.BO02.BHZ. 2019-12-25T20:27:48.40 10.0 positive automatic P 115 39.9369 0.0124422 0
C.GO06.BHZ. 2019-12-25T20:27:46.15 10.0 negative automatic P 123 39.7786 -0.978701 0.742724
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