Earthquake with magnitude of Md 2.5 on date 13-02-1987 and time 13:00:16 (UTC) in region Golfo di Policastro (Salerno, Potenza)

A magnitude Md 2.5 earthquake occured in region: Golfo di Policastro (Salerno, Potenza), on

  • 13-02-1987 13:00:16 (UTC)
  • 13-02-1987 14:00:16 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 39.909, 15.683 at 10 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
Tortora CS 8 6187 6187
Praia a Mare CS 8 6725 12912
Maratea PZ 10 5139 18051
San Nicola Arcella CS 12 1957 20008
Aieta CS 12 823 20831
Scalea CS 15 10913 31744
Trecchina PZ 16 2316 34060
Santa Domenica Talao CS 18 1263 35323
Sapri SA 19 6770 42093
Papasidero CS 20 734 42827
Rivello PZ 20 2767 45594

Municipalities with at least 50000 inhabitants

An earthquake occurred to
82 Km S of Potenza (67122 inhabitants)
84 Km NW of Cosenza (67546 inhabitants)
98 Km SE 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 1987-02-13
13:00:16
39.909 15.683 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 41249
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-02-13 13:00:16 ± 0.444
Latitude 39.9090 ± 0.0302
Longitude 15.6830 ± 0.0344
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 41249

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) 4456.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 220
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00219
Epicentral distance of station farthest from the epicenter (degree) 0.00631
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 41249
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:41:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.SGO.Z. 1987-02-13T13:00:40.00 10.0 undecidable manual SG 336 0.0063 -0.96 0.2
--.ORI.Z. 1987-02-13T13:00:38.00 10.0 undecidable manual SG 76 0.0053 0.59 0.5
--.TS9.Z. 1987-02-13T13:00:36.00 10.0 undecidable manual SG 116 0.005 -0.18 0.9
--.SGO.Z. 1987-02-13T13:00:30.00 10.0 undecidable manual PG 336 0.0063 -0.52 1.3
--.TS9.Z. 1987-02-13T13:00:28.00 10.0 undecidable manual PG 116 0.005 0.24 2.1
--.ORI.Z. 1987-02-13T13:00:28.00 10.0 undecidable manual PG 76 0.0053 -0.47 1.5
--.MG9.Z. 1987-02-13T13:00:27.00 10.0 undecidable manual SG 336 0.0022 0.85 0.3
--.MG9.Z. 1987-02-13T13:00:22.60 10.0 undecidable manual PG 336 0.0022 0.63 1.2
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