A magnitude Md 2.5 earthquake occured in region: 5 km W Salaparuta (TP), on
and geographic coordinates (lat, lon) 37.7520, 12.9520 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 |
---|---|---|---|---|
Salaparuta | TP | 5 | 1696 | 1696 |
Partanna | TP | 6 | 10607 | 12303 |
Montevago | AG | 6 | 3006 | 15309 |
Santa Ninfa | TP | 7 | 5043 | 20352 |
Poggioreale | TP | 7 | 1494 | 21846 |
Santa Margherita di Belice | AG | 9 | 6363 | 28209 |
Gibellina | TP | 10 | 4115 | 32324 |
Salemi | TP | 15 | 10794 | 43118 |
Castelvetrano | TP | 16 | 31806 | 74924 |
Menfi | AG | 17 | 12592 | 87516 |
Vita | TP | 18 | 2056 | 89572 |
Sambuca di Sicilia | AG | 18 | 5877 | 95449 |
Calatafimi-Segesta | TP | 20 | 6712 | 102161 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.5
ML-VAX 1.9 |
1987-08-13 03:39:09 |
37.752 | 12.952 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 53809 |
Field | Value |
---|---|
Time (UTC) | 1987-08-13 03:39:09 ± 0.466 |
Latitude | 37.7520 ± 0.0325 |
Longitude | 12.9520 ± 0.0264 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 53809 |
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) | 4297.3 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 194 |
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) | 0.6 |
Epicentral distance of station closest to the epicenter (degree) | 0.00130 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00785 |
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 | 2.5 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | Md |
Reference to an origin | 53809 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:51:53 |
Field | Value |
---|---|
Value | 1.9 |
Uncertainty | |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 53809 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2015-04-28 13:07:13 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.GIB.Z. | 1987-08-13T03:39:40.00 | 10.0 | undecidable | manual | SG | 73 | 0.8769 | 0.01 | 0.8 | |
--.FAI.Z. | 1987-08-13T03:39:35.00 | 10.0 | undecidable | manual | SG | 129 | 0.7326 | -0.62 | 0.6 | |
--.GIB.Z. | 1987-08-13T03:39:27.15 | 10.0 | undecidable | manual | PG | 73 | 0.8769 | -0.08 | 1.9 | |
--.FAI.Z. | 1987-08-13T03:39:25.26 | 10.0 | undecidable | manual | PG | 129 | 0.7326 | 0.55 | 1.6 | |
--.CVT.Z. | 1987-08-13T03:39:17.50 | 10.0 | undecidable | manual | SG | 239 | 0.1443 | 1.08 | 0.3 | |
--.CVT.Z. | 1987-08-13T03:39:12.42 | 10.0 | undecidable | manual | PG | 239 | 0.1443 | -1.21 | 0.7 |