A magnitude Md 2.1 earthquake occured in region: 6 km E Valfabbrica (PG), on
and geographic coordinates (lat, lon) 43.1490, 12.6720 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 |
---|---|---|---|---|
Valfabbrica | PG | 6 | 3389 | 3389 |
Assisi | PG | 10 | 28299 | 31688 |
Nocera Umbra | PG | 11 | 5839 | 37527 |
Valtopina | PG | 12 | 1398 | 38925 |
Gualdo Tadino | PG | 13 | 15208 | 54133 |
Bastia Umbra | PG | 13 | 21874 | 76007 |
Spello | PG | 17 | 8645 | 84652 |
Fossato di Vico | PG | 18 | 2840 | 87492 |
Cannara | PG | 18 | 4305 | 91797 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.1 | 1997-11-01 21:23:40 |
43.149 | 12.672 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 308669 |
Field | Value |
---|---|
Time (UTC) | 1997-11-01 21:23:40 ± 0.219 |
Latitude | 43.1490 ± 0.0134 |
Longitude | 12.6720 ± 0.0265 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 308669 |
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) | 2614.4 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 178 |
Number of associated phases, regardless of their use for origin computation | 8 |
Number of defining phases | 8 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.2 |
Epicentral distance of station closest to the epicenter (degree) | 0.00073 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00486 |
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 | 2.1 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | Md |
Reference to an origin | 308669 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 21:49:39 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.FB9.Z. | 1997-11-01T21:24:01.11 | 10.0 | undecidable | manual | SG | 8 | 0.5439 | 0.63 | 0 | |
--.NRCA.Z. | 1997-11-01T21:23:58.40 | 10.0 | undecidable | manual | SG | 134 | 0.444 | 0.67 | 0 | |
--.FB9.Z. | 1997-11-01T21:23:51.98 | 10.0 | undecidable | manual | PG | 8 | 0.5439 | -0.26 | 0.8 | |
--.NRCA.Z. | 1997-11-01T21:23:50.11 | 10.0 | undecidable | manual | PG | 134 | 0.444 | -0.33 | 0.7 | |
--.SNTG.Z. | 1997-11-01T21:23:49.75 | 10.0 | undecidable | manual | SG | 61 | 0.2109 | -0.28 | 0.4 | |
--.SNTG.Z. | 1997-11-01T21:23:46.23 | 10.0 | positive | manual | PG | 61 | 0.2109 | 0.02 | 3.1 | |
--.ASS.Z. | 1997-11-01T21:23:45.42 | 10.0 | undecidable | manual | SG | 189 | 0.0777 | -0.38 | 0.3 | |
--.ASS.Z. | 1997-11-01T21:23:43.90 | 10.0 | positive | manual | PG | 189 | 0.0777 | 0.13 | 2.8 |