Earthquake with magnitude of Mwp 5.8 on date 25-04-2023 and time 11:12:27 (UTC) in region West Chile Rise [Sea]

A magnitude Mwp 5.8 earthquake occured in region: West Chile Rise [Sea], on

  • 25-04-2023 11:12:27 (UTC)
  • 25-04-2023 13:12:27 (UTC +02:00) Italian time
  • 25-04-2023 07:12:27 (UTC -04:00) local time in the region of the earthquake (America/Santiago)

and geographic coordinates (lat, lon) -40.9570, -86.1230 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.

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 5.1
Mwp 5.8

Mwpd 5.9
2023-04-25
11:12:27
-40.957 -86.123 1 2023-04-25
11:24:25
Sala Sismica INGV-Roma 116731881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-25 11:12:27
Latitude -40.9570
Longitude -86.1230
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 116731881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 20223
Semi-minor axis of confidence ellipse (meter) 12577
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 73
Circular confidence region, given by single value of horizontal uncertainty (meter) 16338.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 231.848
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 2.08491
Epicentral distance of station closest to the epicenter (degree) 9.32777
Epicentral distance of station farthest from the epicenter (degree) 53.40565
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

Mwp:5.8

Field Value
Value 5.8
Uncertainty 0.1
Num. used stations 6
Type of magnitude Mwp
Reference to an origin 116731881
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2023-04-25 11:24:25

Mwpd:5.9

Field Value
Value 5.9
Uncertainty 0.0
Num. used stations 1
Type of magnitude Mwpd
Reference to an origin 116731881
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2023-04-25 11:24:25

mb:5.1

Field Value
Value 5.1
Uncertainty 0.1
Num. used stations 11
Type of magnitude mb
Reference to an origin 116731881
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2023-04-25 11:24:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GE.BOAB.BHZ. 2023-04-25T11:21:46.55 10.0 positive automatic P 1 5928.0216 -0.698072 0.477068
IU.SDV.BHZ.00 2023-04-25T11:21:34.22 10.0 positive automatic P 20 5754.3621 -1.64888 0.53009
II.JTS.BHZ.00 2023-04-25T11:21:32.42 10.0 negative automatic P 1 5689.5159 1.14784 0
GT.LPAZ.BHZ.00 2023-04-25T11:18:31.15 10.0 positive automatic P 37 3236.3271 1.79925 0.952381
GT.CPUP.BHZ.00 2023-04-25T11:18:16.73 10.0 positive automatic P 67 3094.7244 -0.455298 0.898876
II.EFI.BHZ.00 2023-04-25T11:17:17.92 10.0 positive automatic P 129 2436.3723 -3.00379 0.869565
C.GO02.BHZ. 2023-04-25T11:17:13.30 10.0 positive automatic P 46 2323.6962 2.88293 0.888889
IU.LCO.BHZ.00 2023-04-25T11:16:31.62 10.0 positive automatic P 51 1924.4847 2.11897 0.930233
C1.CO02.BHZ. 2023-04-25T11:16:05.70 10.0 positive automatic P 56 1731.1893 -1.37805 0.963855
G.PEL.BHZ.00 2023-04-25T11:15:52.40 10.0 positive automatic P 62 1616.4375 -0.742014 0.952381
C1.BO02.BHZ. 2023-04-25T11:15:37.62 10.0 positive automatic P 68 1505.3043 -1.89141 0.487805
G.COYC.BHZ.00 2023-04-25T11:15:08.05 10.0 negative automatic P 119 1242.9669 0.954277 0.888889
C.GO06.BHZ. 2023-04-25T11:15:06.83 10.0 positive automatic P 88 1248.6168 -1.14237 0.963855
C1.LL02.BHZ. 2023-04-25T11:15:04.23 10.0 positive automatic P 107 1200.3318 2.36777 0.91954
C1.VA04.BHZ. 2023-04-25T11:14:40.00 10.0 positive automatic P 41 1035.3858 -1.45354 0.97561
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