Earthquake with magnitude of Md 2.6 on date 06-02-1987 and time 04:28:39 (Italy) in region Mar Ionio Meridionale (MARE)

A magnitude Md 2.6 earthquake occured in region: Mar Ionio Meridionale (MARE), on

  • 06-02-1987 03:28:39 (UTC)
  • 06-02-1987 04:28:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.55, 16.34 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
88 Km SE of Reggio di Calabria (183035 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
Rev 1000 Md 2.6 1987-02-06
03:28:39
37.55 16.35 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 40649
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-02-06 03:28:39 ± 1.53
Latitude 37.55 ± 0.04
Longitude 16.35 ± 0.08
Depth (km) 10 ± 9 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 40649

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) 8292.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 238
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
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) 0.0051
Epicentral distance of station farthest from the epicenter (degree) 0.03044
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

Md:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 40649
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:40:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.BRT.Z. 1987-02-06T03:29:30.50 10.0 undecidable manual PN 10 0.0304 -1.88 0.1
--.MS9.Z. 1987-02-06T03:29:22.50 10.0 undecidable manual SN 286 0.0122 -0.19 0.5
--.ML9.Z. 1987-02-06T03:29:17.50 10.0 undecidable manual SN 249 0.0108 -1.54 0.2
--.FAI.Z. 1987-02-06T03:29:16.50 10.0 undecidable manual PN 263 0.0193 1.16 0.5
--.GIB.Z. 1987-02-06T03:29:12.00 10.0 undecidable manual PN 284 0.0169 0.19 1.1
--.AT9.Z. 1987-02-06T03:29:10.00 10.0 undecidable manual SG 311 0.0083 -1.55 0.2
--.MS9.Z. 1987-02-06T03:29:05.00 10.0 undecidable manual PN 286 0.0122 0.4 1.2
--.GR9.Z. 1987-02-06T03:29:03.00 10.0 undecidable manual PN 2 0.0114 -0.4 1.2
--.ML9.Z. 1987-02-06T03:29:02.50 10.0 positive manual PN 249 0.0108 0.01 2.5
--.AT9.Z. 1987-02-06T03:28:58.00 10.0 positive manual PG 311 0.0083 -0.17 2.5
--.SO9.Z. 1987-02-06T03:28:53.00 10.0 negative manual PG 336 0.0051 1.39 0.9
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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