Earthquake with magnitude of Md 2.8 on date 14-03-1987 and time 12:57:04 (Italy) in region Mar Ionio Meridionale (MARE)

A magnitude Md 2.8 earthquake occured in region: Mar Ionio Meridionale (MARE), on

  • 14-03-1987 11:57:04 (UTC)
  • 14-03-1987 12:57:04 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.44, 15.9 at 5 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
67 Km E of Acireale (52622 inhabitants)
68 Km NE of Siracusa (122291 inhabitants)
72 Km E of Catania (314555 inhabitants)
78 Km S of Reggio di Calabria (183035 inhabitants)
89 Km SE of Messina (238439 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 2.8 1987-03-14
11:57:04
37.44 15.9 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 42819
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-03-14 11:57:04 ± 0.356
Latitude 37.44 ± 0.02
Longitude 15.90 ± 0.03
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 42819

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) 3079.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 230
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
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) 0.00712
Epicentral distance of station farthest from the epicenter (degree) 0.02833
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

Md:2.8

Field Value
Value 2.8
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 42819
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:42:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.TS9.Z. 1987-03-14T11:58:09.00 10.0 undecidable manual SN 8 0.0202 -0.27 0.5
--.FAI.Z. 1987-03-14T11:57:59.00 10.0 undecidable manual SN 264 0.0159 0.75 0.3
--.SGO.Z. 1987-03-14T11:57:54.50 10.0 undecidable manual PN 351 0.0283 0.32 1
--.GR9.Z. 1987-03-14T11:57:49.50 10.0 undecidable manual SN 16 0.0129 -0.61 0.7
--.MG9.Z. 1987-03-14T11:57:47.50 10.0 undecidable manual PN 354 0.0244 -0.61 0.8
--.TS9.Z. 1987-03-14T11:57:42.00 10.0 undecidable manual PN 8 0.0202 0.27 1.3
--.CSI.Z. 1987-03-14T11:57:42.20 10.0 undecidable manual PN 7 0.0212 -1.16 0.3
--.ROI.Z. 1987-03-14T11:57:41.00 10.0 undecidable manual PN 13 0.0197 -0.04 1.5
--.MS9.Z. 1987-03-14T11:57:41.50 10.0 undecidable manual SG 297 0.0096 0.16 0.7
--.FAI.Z. 1987-03-14T11:57:36.50 10.0 undecidable manual PN 264 0.0159 1.13 0.3
--.ML9.Z. 1987-03-14T11:57:33.00 10.0 undecidable manual SG 246 0.0075 -0.89 0.4
--.AT9.Z. 1987-03-14T11:57:32.00 10.0 undecidable manual SG 334 0.0071 -0.49 0.5
--.GIB.Z. 1987-03-14T11:57:32.00 10.0 undecidable manual PN 290 0.0142 -0.61 1.1
--.GR9.Z. 1987-03-14T11:57:31.50 10.0 undecidable manual PN 16 0.0129 0.83 0.7
--.MS9.Z. 1987-03-14T11:57:26.50 10.0 undecidable manual PG 297 0.0096 0.89 0.6
--.AT9.Z. 1987-03-14T11:57:20.80 10.0 negative manual PG 334 0.0071 0.3 3.1
--.ML9.Z. 1987-03-14T11:57:20.80 10.0 positive manual PG 246 0.0075 -0.5 2.5
--.MSI.Z. 1987-03-14T11:57:20.70 10.0 undecidable manual PG 340 0.0072 -0.04 1.7
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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