A magnitude Md 2.5 earthquake occured in region: 9 km SE Valtopina (PG), on
and geographic coordinates (lat, lon) 42.9880, 12.8100 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 |
---|---|---|---|---|
Valtopina | PG | 9 | 1398 | 1398 |
Foligno | PG | 9 | 57155 | 58553 |
Spello | PG | 11 | 8645 | 67198 |
Trevi | PG | 13 | 8469 | 75667 |
Nocera Umbra | PG | 14 | 5839 | 81506 |
Sellano | PG | 15 | 1079 | 82585 |
Serravalle di Chienti | MC | 15 | 1070 | 83655 |
Monte Cavallo | MC | 16 | 145 | 83800 |
Montefalco | PG | 16 | 5679 | 89479 |
Bevagna | PG | 17 | 5081 | 94560 |
Assisi | PG | 18 | 28299 | 122859 |
Cannara | PG | 18 | 4305 | 127164 |
Campello sul Clitunno | PG | 19 | 2442 | 129606 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.5 | 1986-10-04 08:15:55 |
42.988 | 12.81 | 5 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 35259 |
Field | Value |
---|---|
Time (UTC) | 1986-10-04 08:15:55 ± 0.703 |
Latitude | 42.9880 ± 0.0352 |
Longitude | 12.8100 ± 0.0227 |
Depth (km) | 5 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 35259 |
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) | 4331.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 291 |
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) | 0.4 |
Epicentral distance of station closest to the epicenter (degree) | 0.00121 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00793 |
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 | 35259 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:35:40 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.CRE.Z. | 1986-10-04T08:16:27.00 | 10.0 | undecidable | manual | SG | 315 | 0.8769 | -0.17 | 0.6 | |
--.ARV.Z. | 1986-10-04T08:16:16.00 | 10.0 | undecidable | manual | SG | 10 | 0.5106 | 0.66 | 0.3 | |
--.CRE.Z. | 1986-10-04T08:16:14.50 | 10.0 | undecidable | manual | PG | 315 | 0.8769 | 0.59 | 0.7 | |
--.ARV.Z. | 1986-10-04T08:16:06.50 | 10.0 | undecidable | manual | PG | 10 | 0.5106 | -0.58 | 1 | |
--.ASS.Z. | 1986-10-04T08:16:01.00 | 10.0 | undecidable | manual | SG | 302 | 0.1332 | -0.35 | 1 | |
--.ASS.Z. | 1986-10-04T08:15:59.00 | 10.0 | undecidable | manual | PG | 302 | 0.1332 | 0 | 2.3 |