A magnitude Md 2.1 earthquake occured in region: 8 km SE Valtopina (PG), on
and geographic coordinates (lat, lon) 43.0230, 12.8380 at 4 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 | 8 | 1398 | 1398 |
Nocera Umbra | PG | 11 | 5839 | 7237 |
Serravalle di Chienti | MC | 11 | 1070 | 8307 |
Foligno | PG | 13 | 57155 | 65462 |
Monte Cavallo | MC | 14 | 145 | 65607 |
Spello | PG | 14 | 8645 | 74252 |
Sefro | MC | 17 | 422 | 74674 |
Sellano | PG | 17 | 1079 | 75753 |
Pieve Torina | MC | 18 | 1458 | 77211 |
Trevi | PG | 18 | 8469 | 85680 |
Muccia | MC | 18 | 915 | 86595 |
Assisi | PG | 19 | 28299 | 114894 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.1 | 1998-08-09 12:20:55 |
43.023 | 12.838 | 4 | 2013-07-15 08:40:51 |
Bollettino Sismico Italiano INGV | 347519 |
Field | Value |
---|---|
Time (UTC) | 1998-08-09 12:20:55 ± 0.157 |
Latitude | 43.0230 ± 0.0079 |
Longitude | 12.8380 ± 0.0124 |
Depth (km) | 4 ± 2 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 347519 |
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) | 1334.2 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 115 |
Number of associated phases, regardless of their use for origin computation | 9 |
Number of defining phases | 9 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.3 |
Epicentral distance of station closest to the epicenter (degree) | 0.00121 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00599 |
Number of stations at which the event was observed | 5 |
Number of stations from which data was used for origin computation | 5 |
Field | Value |
---|---|
Value | 2.1 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | Md |
Reference to an origin | 347519 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 22:25:31 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.FB9.Z. | 1998-08-09T12:21:19.51 | 10.0 | undecidable | manual | SG | 356 | 0.666 | -0.17 | 0.3 | |
--.MNS.Z. | 1998-08-09T12:21:10.20 | 10.0 | undecidable | manual | PG | 190 | 0.6438 | 1.12 | 0.3 | |
--.FB9.Z. | 1998-08-09T12:21:09.13 | 10.0 | undecidable | manual | PG | 356 | 0.666 | -0.19 | 1.4 | |
--.NRCA.Z. | 1998-08-09T12:21:05.66 | 10.0 | undecidable | manual | SG | 132 | 0.2664 | -0.25 | 0.4 | |
--.SNTG.Z. | 1998-08-09T12:21:04.98 | 10.0 | undecidable | manual | SG | 17 | 0.2442 | 0.32 | 0.9 | |
--.NRCA.Z. | 1998-08-09T12:21:01.32 | 10.0 | undecidable | manual | PG | 132 | 0.2664 | -0.05 | 1.7 | |
--.ASS.Z. | 1998-08-09T12:21:00.70 | 10.0 | undecidable | manual | SG | 286 | 0.1332 | -0.1 | 0.4 | |
--.SNTG.Z. | 1998-08-09T12:21:00.63 | 10.0 | undecidable | manual | PG | 17 | 0.2442 | -0.02 | 2 | |
--.ASS.Z. | 1998-08-09T12:20:58.39 | 10.0 | undecidable | manual | PG | 286 | 0.1332 | -0.02 | 1.6 |