Earthquake with magnitude of mb 4.5 on date 04-05-2023 and time 01:50:02 (UTC) in region Turkey [Sea]

A magnitude mb 4.5 earthquake occured in region: Turkey [Sea], on

  • 04-05-2023 01:50:02 (UTC)
  • 04-05-2023 03:50:02 (UTC +02:00) Italian time
  • 04-05-2023 04:50:02 (UTC +03:00) local time in the region of the earthquake (Europe/Istanbul)

and geographic coordinates (lat, lon) 40.5930, 26.2820 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
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
mb 4.5 2023-05-04
01:50:02
40.5932 26.2817 10 2023-05-04
02:01:47
Sala Sismica INGV-Roma 117000751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-04 01:50:02
Latitude 40.5932
Longitude 26.2817
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 117000751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 10300
Semi-minor axis of confidence ellipse (meter) 312
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 16
Circular confidence region, given by single value of horizontal uncertainty (meter) 8315.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107.904
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.07146
Epicentral distance of station closest to the epicenter (degree) 0.78925
Epicentral distance of station farthest from the epicenter (degree) 8.09144
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

mb:4.5

Field Value
Value 4.5
Uncertainty 0.3
Num. used stations 6
Type of magnitude mb
Reference to an origin 117000751
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2023-05-04 02:01:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.CUC.BHZ. 2023-05-04T01:52:00.18 10.0 positive automatic P 269 888.0444 1.8437 0.888889
HU.KOVH.BHZ. 2023-05-04T01:51:58.60 10.0 negative automatic P 315 898.1454 -0.564887 0.952381
MN.BZS.BHZ. 2023-05-04T01:51:30.77 10.0 positive automatic P 328 672.5157 -0.48518 0.952381
MN.DIVS.BHZ. 2023-05-04T01:51:27.15 10.0 negative automatic P 309 645.909 -0.939554 0.952381
MN.PDG.BHZ. 2023-05-04T01:51:25.22 10.0 positive automatic P 292 617.9037 0.763601 0.869565
IU.ANTO.BHZ.00 2023-05-04T01:51:17.37 10.0 positive automatic P 96 557.4975 0.212063 0.952381
HL.ARG.HHZ. 2023-05-04T01:51:10.70 10.0 positive automatic P 161 511.7322 -0.633877 0.980392
GE.TIRR.BHZ. 2023-05-04T01:51:06.25 10.0 positive automatic P 21 463.0143 0.960143 0.97561
GE.ISP.BHZ.00 2023-05-04T01:51:06.15 10.0 positive automatic P 129 474.5805 -0.74153 0.930233
HL.RDO.HHZ. 2023-05-04T01:50:16.58 10.0 negative automatic P 315 87.6012 -0.242476 0.970874
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