A magnitude Md 2.4 earthquake occured in region: 1 km S Valtopina (PG), on
and geographic coordinates (lat, lon) 43.0500, 12.7580 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 |
---|---|---|---|---|
Valtopina | PG | 1 | 1398 | 1398 |
Nocera Umbra | PG | 7 | 5839 | 7237 |
Spello | PG | 9 | 8645 | 15882 |
Foligno | PG | 11 | 57155 | 73037 |
Assisi | PG | 12 | 28299 | 101336 |
Cannara | PG | 15 | 4305 | 105641 |
Serravalle di Chienti | MC | 16 | 1070 | 106711 |
Bastia Umbra | PG | 17 | 21874 | 128585 |
Valfabbrica | PG | 18 | 3389 | 131974 |
Bevagna | PG | 18 | 5081 | 137055 |
Sefro | MC | 19 | 422 | 137477 |
Trevi | PG | 19 | 8469 | 145946 |
Montefalco | PG | 19 | 5679 | 151625 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.4 | 1987-04-13 04:27:27 |
43.05 | 12.758 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 44779 |
Field | Value |
---|---|
Time (UTC) | 1987-04-13 04:27:27 ± 0.408 |
Latitude | 43.0500 ± 0.0313 |
Longitude | 12.7580 ± 0.0186 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 44779 |
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) | 3791.9 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 216 |
Number of associated phases, regardless of their use for origin computation | 11 |
Number of defining phases | 11 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.5 |
Epicentral distance of station closest to the epicenter (degree) | 0.00065 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00729 |
Number of stations at which the event was observed | 6 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 2.4 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | Md |
Reference to an origin | 44779 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:44:11 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.CRE.Z. | 1987-04-13T04:27:57.00 | 10.0 | undecidable | manual | SG | 314 | 0.8103 | 0.97 | 0.2 | |
--.AM8.Z. | 1987-04-13T04:27:56.16 | 10.0 | undecidable | manual | SG | 50 | 0.777 | 1.01 | 0.2 | |
--.CRE.Z. | 1987-04-13T04:27:44.50 | 10.0 | undecidable | manual | PG | 314 | 0.8103 | 0.37 | 1.3 | |
--.ARV.Z. | 1987-04-13T04:27:44.00 | 10.0 | undecidable | manual | SG | 16 | 0.4662 | -0.82 | 0.5 | |
--.AM8.Z. | 1987-04-13T04:27:43.78 | 10.0 | undecidable | manual | PG | 50 | 0.777 | 0.16 | 1.6 | |
--.CM8.Z. | 1987-04-13T04:27:39.42 | 10.0 | undecidable | manual | SG | 62 | 0.3108 | -0.52 | 0.6 | |
--.ARV.Z. | 1987-04-13T04:27:37.50 | 10.0 | undecidable | manual | PG | 16 | 0.4662 | -0.16 | 2.1 | |
--.CM8.Z. | 1987-04-13T04:27:34.87 | 10.0 | undecidable | manual | PG | 62 | 0.3108 | 0.03 | 2.2 | |
--.PRG.Z. | 1987-04-13T04:27:33.00 | 10.0 | undecidable | manual | PG | 280 | 0.2553 | -0.96 | 0.6 | |
--.ASS.Z. | 1987-04-13T04:27:32.00 | 10.0 | undecidable | manual | SG | 278 | 0.0666 | -0.47 | 0.6 | |
--.ASS.Z. | 1987-04-13T04:27:31.20 | 10.0 | undecidable | manual | PG | 278 | 0.0666 | 0.67 | 1.2 |