A magnitude Md 2.5 earthquake occured in region: 1 km E Castel Ritaldi (PG), on
and geographic coordinates (lat, lon) 42.8230, 12.6820 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.
Municipality | Region | Distance (km) | Inhabitants | Cumulative Inhabitants |
---|---|---|---|---|
Castel Ritaldi | PG | 1 | 3278 | 3278 |
Campello sul Clitunno | PG | 8 | 2442 | 5720 |
Trevi | PG | 8 | 8469 | 14189 |
Montefalco | PG | 8 | 5679 | 19868 |
Giano dell'Umbria | PG | 9 | 3846 | 23714 |
Spoleto | PG | 11 | 38218 | 61932 |
Bevagna | PG | 14 | 5081 | 67013 |
Massa Martana | PG | 14 | 3770 | 70783 |
Gualdo Cattaneo | PG | 14 | 6155 | 76938 |
Foligno | PG | 15 | 57155 | 134093 |
Vallo di Nera | PG | 16 | 364 | 134457 |
Sant'Anatolia di Narco | PG | 16 | 564 | 135021 |
Scheggino | PG | 17 | 461 | 135482 |
Acquasparta | TR | 18 | 4778 | 140260 |
Spello | PG | 19 | 8645 | 148905 |
Cerreto di Spoleto | PG | 19 | 1075 | 149980 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.5 | 1991-12-20 22:52:05 |
42.823 | 12.682 | 5 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 155439 |
Field | Value |
---|---|
Time (UTC) | 1991-12-20 22:52:05 ± 0.179 |
Latitude | 42.8230 ± 0.0070 |
Longitude | 12.6820 ± 0.0338 |
Depth (km) | 5 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 155439 |
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) | 2864.7 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 185 |
Number of associated phases, regardless of their use for origin computation | 8 |
Number of defining phases | 8 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.2 |
Epicentral distance of station closest to the epicenter (degree) | 0.00210 |
Epicentral distance of station farthest from the epicenter (degree) | 0.01109 |
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 | 2.5 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | Md |
Reference to an origin | 155439 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 19:25:10 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.SFI.Z. | 1991-12-20T22:52:46.50 | 10.0 | undecidable | manual | SN | 330 | 1.2321 | -0.41 | 0.3 | |
--.CRE.Z. | 1991-12-20T22:52:39.00 | 10.0 | undecidable | manual | SG | 326 | 0.9546 | -0.22 | 0.6 | |
--.SFI.Z. | 1991-12-20T22:52:30.00 | 10.0 | undecidable | manual | PN | 330 | 1.2321 | 0.55 | 0.5 | |
--.CRE.Z. | 1991-12-20T22:52:25.10 | 10.0 | undecidable | manual | PG | 326 | 0.9546 | 0.09 | 2 | |
--.MNS.Z. | 1991-12-20T22:52:23.00 | 10.0 | undecidable | manual | SG | 180 | 0.4329 | 0.47 | 0.4 | |
--.MNS.Z. | 1991-12-20T22:52:15.00 | 10.0 | undecidable | manual | PG | 180 | 0.4329 | -0.38 | 1.1 | |
--.ASS.Z. | 1991-12-20T22:52:15.00 | 10.0 | undecidable | manual | SG | 354 | 0.2331 | -0.02 | 0.9 | |
--.ASS.Z. | 1991-12-20T22:52:11.00 | 10.0 | undecidable | manual | PG | 354 | 0.2331 | -0.04 | 2.3 |