A magnitude Md 2.1 earthquake occured in region: 6 km W Norcia (PG), on
and geographic coordinates (lat, lon) 42.7910, 13.0260 at 28 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 |
---|---|---|---|---|
Norcia | PG | 6 | 4957 | 4957 |
Cascia | PG | 8 | 3217 | 8174 |
Cerreto di Spoleto | PG | 9 | 1075 | 9249 |
Preci | PG | 10 | 724 | 9973 |
Poggiodomo | PG | 11 | 117 | 10090 |
Vallo di Nera | PG | 14 | 364 | 10454 |
Sellano | PG | 14 | 1079 | 11533 |
Castelsantangelo sul Nera | MC | 16 | 281 | 11814 |
Visso | MC | 17 | 1107 | 12921 |
Monteleone di Spoleto | PG | 17 | 599 | 13520 |
Sant'Anatolia di Narco | PG | 17 | 564 | 14084 |
Scheggino | PG | 18 | 461 | 14545 |
Ussita | MC | 20 | 444 | 14989 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.1 | 1997-12-06 12:45:25 |
42.791 | 13.026 | 28 | 2013-07-15 08:40:51 |
Bollettino Sismico Italiano INGV | 315999 |
Field | Value |
---|---|
Time (UTC) | 1997-12-06 12:45:25 ± 0.632 |
Latitude | 42.7910 ± 0.0335 |
Longitude | 13.0260 ± 0.0515 |
Depth (km) | 28 ± 4 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 315999 |
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) | 5620.3 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 258 |
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) | 0.3 |
Epicentral distance of station closest to the epicenter (degree) | 0.00065 |
Epicentral distance of station farthest from the epicenter (degree) | 0.01020 |
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 | 1 |
Type of magnitude | Md |
Reference to an origin | 315999 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 21:56:17 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.CRE.Z. | 1997-12-06T12:45:44.67 | 10.0 | undecidable | manual | PN | 317 | 1.1322 | -0.66 | 0.3 | |
--.SNTG.Z. | 1997-12-06T12:45:43.48 | 10.0 | undecidable | manual | SG | 352 | 0.4551 | -0.23 | 0.5 | |
--.ASS.Z. | 1997-12-06T12:45:40.68 | 10.0 | undecidable | manual | SG | 314 | 0.3774 | -0.68 | 0.2 | |
--.SNTG.Z. | 1997-12-06T12:45:36.72 | 10.0 | undecidable | manual | PG | 352 | 0.4551 | 0.64 | 0.5 | |
--.ASS.Z. | 1997-12-06T12:45:35.60 | 10.0 | positive | manual | PG | 314 | 0.3774 | 0.34 | 2.3 | |
--.NRCA.Z. | 1997-12-06T12:45:34.00 | 10.0 | undecidable | manual | SG | 56 | 0.0666 | -0.7 | 0.2 | |
--.NRCA.Z. | 1997-12-06T12:45:30.77 | 10.0 | positive | manual | PG | 56 | 0.0666 | -0.11 | 3 |