Earthquake with magnitude of Md 2.5 on date 03-08-1987 and time 14:19:27 (Italy) in region Costa Calabra sud orientale (Reggio di Calabria)

A magnitude Md 2.5 earthquake occured in region: Costa Calabra sud orientale (Reggio di Calabria), on

  • 03-08-1987 12:19:27 (UTC)
  • 03-08-1987 14:19:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.6040, 15.8780 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
60 Km SE of Reggio di Calabria (183035 inhabitants)
63 Km E of Acireale (52622 inhabitants)
71 Km E of Catania (314555 inhabitants)
72 Km SE of Messina (238439 inhabitants)
79 Km NE of Siracusa (122291 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 2.3
1987-08-03
12:19:27
37.604 15.878 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 53319
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-08-03 12:19:27 ± 0.439
Latitude 37.6040 ± 0.0251
Longitude 15.8780 ± 0.0292
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 53319

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) 3793.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 203
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) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00413
Epicentral distance of station farthest from the epicenter (degree) 0.00890
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 53319
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:51:26

ML:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 53319
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(km) Takeoff_angle Residual Weight
--.MNO.Z. 1987-08-03T12:20:01.37 10.0 undecidable manual SG 289 0.9879 0.11 0.6
--.PZI.Z. 1987-08-03T12:19:57.77 10.0 undecidable manual SG 233 0.9213 -1.26 0.1
--.ATN.Z. 1987-08-03T12:19:49.13 10.0 undecidable manual SG 329 0.6327 -0.98 0.3
--.MNO.Z. 1987-08-03T12:19:47.52 10.0 undecidable manual PG 289 0.9879 0.51 1.3
--.PZI.Z. 1987-08-03T12:19:45.94 10.0 undecidable manual PG 233 0.9213 0.22 1.6
--.RI2.Z. 1987-08-03T12:19:45.40 10.0 undecidable manual PG 30 0.9324 -0.73 2
--.SO9.Z. 1987-08-03T12:19:44.32 10.0 undecidable manual SG 16 0.4884 -0.79 0.4
--.ATN.Z. 1987-08-03T12:19:40.64 10.0 undecidable manual PG 329 0.6327 0.07 1.9
--.SO9.Z. 1987-08-03T12:19:38.27 10.0 undecidable manual PG 16 0.4884 0.59 1.4
--.FE2.Z. 1987-08-03T12:19:38.50 10.0 undecidable manual PG 20 0.4551 1.25 0.4
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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