Earthquake with magnitude of Md 2.5 on date 04-08-1986 and time 19:34:39 (UTC) in region Costa Cilentana (Salerno)

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

  • 04-08-1986 19:34:39 (UTC)
  • 04-08-1986 21:34:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.949, 15.339 at 17 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Camerota SA 10 6985 6985
Centola SA 13 5168 12153
San Giovanni a Piro SA 15 3780 15933
Celle di Bulgheria SA 17 1922 17855
Roccagloriosa SA 20 1722 19577
San Mauro la Bruca SA 20 603 20180
Pisciotta SA 20 2641 22821

Municipalities with at least 50000 inhabitants

An earthquake occurred to
79 Km SE of Battipaglia (50786 inhabitants)
87 Km SW of Potenza (67122 inhabitants)
95 Km SE of Salerno (135261 inhabitants)
99 Km SE of Cava de' Tirreni (53659 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 1986-08-04
19:34:39
39.949 15.339 17 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 32139
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-08-04 19:34:39 ± 0.52
Latitude 39.9490 ± 0.0331
Longitude 15.3390 ± 0.0623
Depth (km) 17 ± 8 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 32139

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) 6463.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 194
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
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) 0.00219
Epicentral distance of station farthest from the epicenter (degree) 0.01757
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 32139
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:33:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.SO9.Z. 1986-08-04T19:35:11.50 10.0 undecidable manual PN 163 0.0176 -0.33 0.5
--.SGO.Z. 1986-08-04T19:35:01.50 10.0 undecidable manual SG 357 0.0054 0.09 0.6
--.TS9.Z. 1986-08-04T19:34:56.00 10.0 undecidable manual PG 110 0.0074 -0.09 1.5
--.CSI.Z. 1986-08-04T19:34:55.40 10.0 undecidable manual PG 102 0.0067 0.58 0.3
--.SGO.Z. 1986-08-04T19:34:52.50 10.0 undecidable manual PG 357 0.0054 0.25 1.2
--.MG9.Z. 1986-08-04T19:34:50.00 10.0 undecidable manual SG 41 0.0022 -0.2 0.7
--.MG9.Z. 1986-08-04T19:34:45.50 10.0 negative manual PG 41 0.0022 -0.28 2.1
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