A magnitude Md 2.5 earthquake occured in region: 1 km S Trevi (PG), on
and geographic coordinates (lat, lon) 42.8710, 12.7460 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 |
---|---|---|---|---|
Trevi | PG | 1 | 8469 | 8469 |
Campello sul Clitunno | PG | 6 | 2442 | 10911 |
Castel Ritaldi | PG | 8 | 3278 | 14189 |
Montefalco | PG | 8 | 5679 | 19868 |
Foligno | PG | 10 | 57155 | 77023 |
Bevagna | PG | 13 | 5081 | 82104 |
Giano dell'Umbria | PG | 14 | 3846 | 85950 |
Vallo di Nera | PG | 15 | 364 | 86314 |
Spello | PG | 15 | 8645 | 94959 |
Sellano | PG | 15 | 1079 | 96038 |
Cerreto di Spoleto | PG | 15 | 1075 | 97113 |
Spoleto | PG | 15 | 38218 | 135331 |
Gualdo Cattaneo | PG | 16 | 6155 | 141486 |
Sant'Anatolia di Narco | PG | 17 | 564 | 142050 |
Scheggino | PG | 19 | 461 | 142511 |
Cannara | PG | 19 | 4305 | 146816 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.5 | 1987-09-16 11:05:48 |
42.871 | 12.746 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 55419 |
Field | Value |
---|---|
Time (UTC) | 1987-09-16 11:05:48 ± 0.343 |
Latitude | 42.8710 ± 0.0168 |
Longitude | 12.7460 ± 0.0170 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 55419 |
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) | 2325.3 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 298 |
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) | 0.1 |
Epicentral distance of station closest to the epicenter (degree) | 0.00178 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00575 |
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 | 2 |
Type of magnitude | Md |
Reference to an origin | 55419 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:53:20 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.ARV.Z. | 1987-09-16T11:06:10.50 | 10.0 | undecidable | manual | SG | 12 | 0.6327 | -0.13 | 0.4 | |
--.ARV.Z. | 1987-09-16T11:06:01.50 | 10.0 | undecidable | manual | PG | 12 | 0.6327 | 0.41 | 0.2 | |
--.CM8.Z. | 1987-09-16T11:05:57.40 | 10.0 | undecidable | manual | PG | 41 | 0.4329 | -0.18 | 1 | |
--.ASS.Z. | 1987-09-16T11:05:56.50 | 10.0 | undecidable | manual | SG | 340 | 0.1998 | 0.02 | 0.9 | |
--.ASS.Z. | 1987-09-16T11:05:52.80 | 10.0 | positive | manual | PG | 340 | 0.1998 | -0.12 | 2.5 |