A magnitude Md 2.3 earthquake occured in region: 2 km E Spello (PG), on
and geographic coordinates (lat, lon) 42.9880, 12.6930 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 |
---|---|---|---|---|
Spello | PG | 2 | 8645 | 8645 |
Foligno | PG | 4 | 57155 | 65800 |
Cannara | PG | 9 | 4305 | 70105 |
Bevagna | PG | 9 | 5081 | 75186 |
Valtopina | PG | 10 | 1398 | 76584 |
Montefalco | PG | 11 | 5679 | 82263 |
Assisi | PG | 11 | 28299 | 110562 |
Trevi | PG | 13 | 8469 | 119031 |
Gualdo Cattaneo | PG | 14 | 6155 | 125186 |
Bastia Umbra | PG | 15 | 21874 | 147060 |
Nocera Umbra | PG | 16 | 5839 | 152899 |
Bettona | PG | 17 | 4367 | 157266 |
Castel Ritaldi | PG | 18 | 3278 | 160544 |
Giano dell'Umbria | PG | 19 | 3846 | 164390 |
Campello sul Clitunno | PG | 20 | 2442 | 166832 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.3 | 1997-10-20 07:46:08 |
42.988 | 12.693 | 5 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 303849 |
Field | Value |
---|---|
Time (UTC) | 1997-10-20 07:46:08 ± 0.239 |
Latitude | 42.9880 ± 0.0107 |
Longitude | 12.6930 ± 0.0480 |
Depth (km) | 5 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 303849 |
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) | 4083.6 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 161 |
Number of associated phases, regardless of their use for origin computation | 7 |
Number of defining phases | 7 |
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) | 0.00065 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00631 |
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 | 2.3 |
Uncertainty | |
Num. used stations | 2 |
Type of magnitude | Md |
Reference to an origin | 303849 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 21:45:21 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.MNS.Z. | 1997-10-20T07:46:31.00 | 10.0 | undecidable | manual | SG | 180 | 0.5883 | -0.05 | 0.7 | |
--.ARV.Z. | 1997-10-20T07:46:28.57 | 10.0 | undecidable | manual | SG | 19 | 0.5439 | -0.55 | 0.4 | |
--.FB9.Z. | 1997-10-20T07:46:25.00 | 10.0 | undecidable | manual | PG | 4 | 0.6993 | 1.4 | 0.3 | |
--.MNS.Z. | 1997-10-20T07:46:21.65 | 10.0 | undecidable | manual | PG | 180 | 0.5883 | -0.01 | 1.8 | |
--.ARV.Z. | 1997-10-20T07:46:20.41 | 10.0 | undecidable | manual | PG | 19 | 0.5439 | -0.14 | 1.7 | |
--.ASS.Z. | 1997-10-20T07:46:12.60 | 10.0 | undecidable | manual | SG | 338 | 0.0666 | 0.21 | 0.8 | |
--.ASS.Z. | 1997-10-20T07:46:10.38 | 10.0 | undecidable | manual | PG | 338 | 0.0666 | -0.51 | 1.3 |