Earthquake with magnitude of Md 2.5 on date 05-09-1987 and time 06:54:12 (UTC) in region Costa Cilentana (Salerno)

A magnitude Md 2.5 earthquake occured in region: Costa Cilentana (Salerno), on

  • 05-09-1987 06:54:12 (UTC)
  • 05-09-1987 08:54:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.721, 15.19 at 294 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
100 Km S of Battipaglia (50786 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 2.5
ML-VAX 2.2
1987-09-05
06:54:12
39.721 15.19 294 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 54779
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-09-05 06:54:12 ± 4.886
Latitude 39.7210 ± 0.0530
Longitude 15.1900 ± 0.1131
Depth (km) 294 ± 41 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 54779

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) 11323.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 233
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00445
Epicentral distance of station farthest from the epicenter (degree) 0.01174
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 54779
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:52:46

ML:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 54779
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.GRI.Z. 1987-09-05T06:54:54.79 10.0 undecidable manual P 133 0.0117 0.25 0.7
--.ROI.Z. 1987-09-05T06:54:52.80 10.0 undecidable manual P 98 0.0096 -0.36 0.5
--.CSI.Z. 1987-09-05T06:54:52.40 10.0 positive manual P 85 0.0076 0.31 1.5
--.TDS.Z. 1987-09-05T06:54:52.65 10.0 undecidable manual P 94 0.0079 0.4 0.5
--.SGO.Z. 1987-09-05T06:54:52.00 10.0 undecidable manual P 6 0.0075 -0.06 1.3
--.ORI.Z. 1987-09-05T06:54:52.62 10.0 undecidable manual P 71 0.0091 -0.26 0.8
--.CZI.Z. 1987-09-05T06:54:52.00 10.0 undecidable manual P 124 0.0079 -0.24 1.8
--.MMN.Z. 1987-09-05T06:54:51.00 10.0 undecidable manual P 74 0.0057 -0.28 0.8
--.MGR.Z. 1987-09-05T06:54:51.50 10.0 undecidable manual P 34 0.0045 0.18 1.1
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