A magnitude Md 2.4 earthquake occured in region: Costa Siciliana nord occidentale (Trapani), on
and geographic coordinates (lat, lon) 38.2400, 12.6550 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.
Municipality | Region | Distance (km) | Inhabitants | Cumulative Inhabitants |
---|---|---|---|---|
San Vito Lo Capo | TP | 10 | 4654 | 4654 |
Custonaci | TP | 18 | 5566 | 10220 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.4 | 1987-05-04 06:18:32 |
38.24 | 12.655 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 46309 |
Field | Value |
---|---|
Time (UTC) | 1987-05-04 06:18:32 ± 0.956 |
Latitude | 38.2400 ± 0.0503 |
Longitude | 12.6550 ± 0.0699 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 46309 |
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) | 8279.5 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 268 |
Number of associated phases, regardless of their use for origin computation | 6 |
Number of defining phases | 6 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.4 |
Epicentral distance of station closest to the epicenter (degree) | 0.00186 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00996 |
Number of stations at which the event was observed | 3 |
Number of stations from which data was used for origin computation | 3 |
Field | Value |
---|---|
Value | 2.4 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | Md |
Reference to an origin | 46309 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:45:31 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.GIB.Z. | 1987-05-04T06:19:10.00 | 10.0 | undecidable | manual | SN | 102 | 1.11 | 1.14 | 0.1 | |
--.GIB.Z. | 1987-05-04T06:18:53.00 | 10.0 | undecidable | manual | PN | 102 | 1.11 | -0.3 | 1.3 | |
--.CVT.Z. | 1987-05-04T06:18:51.50 | 10.0 | undecidable | manual | SG | 169 | 0.5661 | -0.83 | 0.3 | |
--.CVT.Z. | 1987-05-04T06:18:43.50 | 10.0 | undecidable | manual | PG | 169 | 0.5661 | -0.25 | 1.9 | |
--.ERC.Z. | 1987-05-04T06:18:41.50 | 10.0 | undecidable | manual | SG | 194 | 0.2109 | 0.78 | 0.4 | |
--.ERC.Z. | 1987-05-04T06:18:37.00 | 10.0 | undecidable | manual | PG | 194 | 0.2109 | -0.05 | 2.1 |