A magnitude Md 2.2 earthquake occured in region: 2 km NW Santa Ninfa (TP), on
and geographic coordinates (lat, lon) 37.7860, 12.8700 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 |
---|---|---|---|---|
Santa Ninfa | TP | 2 | 5043 | 5043 |
Gibellina | TP | 3 | 4115 | 9158 |
Salemi | TP | 7 | 10794 | 19952 |
Partanna | TP | 7 | 10607 | 30559 |
Vita | TP | 11 | 2056 | 32615 |
Salaparuta | TP | 12 | 1696 | 34311 |
Castelvetrano | TP | 14 | 31806 | 66117 |
Montevago | AG | 14 | 3006 | 69123 |
Calatafimi-Segesta | TP | 14 | 6712 | 75835 |
Poggioreale | TP | 15 | 1494 | 77329 |
Santa Margherita di Belice | AG | 17 | 6363 | 83692 |
Campobello di Mazara | TP | 20 | 11956 | 95648 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.2 | 1987-04-03 02:12:05 |
37.786 | 12.87 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 44119 |
Field | Value |
---|---|
Time (UTC) | 1987-04-03 02:12:05 ± 0.413 |
Latitude | 37.7860 ± 0.0314 |
Longitude | 12.8700 ± 0.0389 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 44119 |
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) | 4884.3 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 118 |
Number of associated phases, regardless of their use for origin computation | 5 |
Number of defining phases | 5 |
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) | 0.00105 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00834 |
Number of stations at which the event was observed | 4 |
Number of stations from which data was used for origin computation | 4 |
Field | Value |
---|---|
Value | 2.2 |
Uncertainty | |
Num. used stations | 2 |
Type of magnitude | Md |
Reference to an origin | 44119 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:43:35 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.GIB.Z. | 1987-04-03T02:12:38.21 | 10.0 | undecidable | manual | SG | 77 | 0.9213 | 1.01 | 0.1 | |
--.GIB.Z. | 1987-04-03T02:12:22.80 | 10.0 | undecidable | manual | PG | 77 | 0.9213 | -1.62 | 0.4 | |
--.FAI.Z. | 1987-04-03T02:12:22.00 | 10.0 | undecidable | manual | PG | 128 | 0.8103 | 0.49 | 1.2 | |
--.ERC.Z. | 1987-04-03T02:12:12.75 | 10.0 | undecidable | manual | PG | 318 | 0.333 | 0.17 | 1.6 | |
--.CV9.Z. | 1987-04-03T02:12:08.50 | 10.0 | undecidable | manual | PG | 209 | 0.1221 | -0.18 | 1.7 |