Earthquake with magnitude of Md 2.3 on date 26-05-1987 and time 10:06:48 (UTC) in region Near south coast of France [Land: France]

A magnitude Md 2.3 earthquake occured in region: Near south coast of France [Land: France], on

  • 26-05-1987 10:06:48 (UTC)
  • 26-05-1987 12:06:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.8370, 7.0640 at 5 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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

An earthquake occurred to
58 Km W of Sanremo (54807 inhabitants)
73 Km SW of Cuneo (56081 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
Bulletin
Rev1000
Md 2.3 1987-05-26
10:06:48
43.837 7.064 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 47799
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-05-26 10:06:48 ± 0.608
Latitude 43.8370 ± 0.0277
Longitude 7.0640 ± 0.0339
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 47799

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 4107.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 264
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00405
Epicentral distance of station farthest from the epicenter (degree) 0.01117
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 47799
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:46:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.BNI.Z. 1987-05-26T10:07:29.00 10.0 undecidable manual SN 347 1.2432 -0.7 0.4
--.FIN.Z. 1987-05-26T10:07:21.60 10.0 undecidable manual SG 65 0.8991 1.52 0.1
--.ROB.Z. 1987-05-26T10:07:15.30 10.0 undecidable manual SG 51 0.7326 0.3 0.8
--.PZZ.Z. 1987-05-26T10:07:13.80 10.0 undecidable manual SG 2 0.666 1.23 0.2
--.BNI.Z. 1987-05-26T10:07:13.00 10.0 undecidable manual PN 347 1.2432 0.82 0.9
--.DOI.Z. 1987-05-26T10:07:13.00 10.0 undecidable manual SG 11 0.6771 0.09 0.9
--.IMI.Z. 1987-05-26T10:07:11.30 10.0 undecidable manual SG 82 0.5883 0.88 0.4
--.RRL.Z. 1987-05-26T10:07:11.30 10.0 undecidable manual PN 349 1.0989 1.11 0.6
--.CKI.Z. 1987-05-26T10:07:09.00 10.0 undecidable manual PG 55 1.0434 -0.32 1.7
--.FIN.Z. 1987-05-26T10:07:06.20 10.0 undecidable manual PG 65 0.8991 -0.42 1.7
--.STV.Z. 1987-05-26T10:07:05.60 10.0 undecidable manual SG 24 0.444 -0.15 0.8
--.ROB.Z. 1987-05-26T10:07:03.40 10.0 undecidable manual PG 51 0.7326 -0.29 2
--.DOI.Z. 1987-05-26T10:07:01.50 10.0 undecidable manual PG 11 0.6771 -0.98 0.9
--.PZZ.Z. 1987-05-26T10:07:01.90 10.0 undecidable manual PG 2 0.666 -0.39 1.9
--.IMI.Z. 1987-05-26T10:07:00.40 10.0 undecidable manual PG 82 0.5883 -0.65 1.5
--.STV.Z. 1987-05-26T10:06:57.60 10.0 undecidable manual PG 24 0.444 -0.75 1.3
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download