A magnitude Md 2.3 earthquake occured in region: 3 km N Norcia (PG), on
and geographic coordinates (lat, lon) 42.8190, 13.0840 at 20 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 | 3 | 4957 | 4957 |
Preci | PG | 8 | 724 | 5681 |
Castelsantangelo sul Nera | MC | 10 | 281 | 5962 |
Visso | MC | 13 | 1107 | 7069 |
Cascia | PG | 13 | 3217 | 10286 |
Cerreto di Spoleto | PG | 14 | 1075 | 11361 |
Ussita | MC | 15 | 444 | 11805 |
Sellano | PG | 15 | 1079 | 12884 |
Poggiodomo | PG | 17 | 117 | 13001 |
Arquata del Tronto | AP | 18 | 1178 | 14179 |
Vallo di Nera | PG | 19 | 364 | 14543 |
Accumoli | RI | 19 | 667 | 15210 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.3 | 1997-12-25 22:21:02 |
42.819 | 13.084 | 20 | 2013-07-15 08:40:51 |
Bollettino Sismico Italiano INGV | 318069 |
Field | Value |
---|---|
Time (UTC) | 1997-12-25 22:21:02 ± 0.253 |
Latitude | 42.8190 ± 0.0073 |
Longitude | 13.0840 ± 0.0189 |
Depth (km) | 20 ± 2 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 318069 |
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) | 1743.2 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 96 |
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) | 0.3 |
Epicentral distance of station closest to the epicenter (degree) | 0.00016 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00469 |
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 | 2.3 |
Uncertainty | |
Num. used stations | 2 |
Type of magnitude | Md |
Reference to an origin | 318069 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 21:58:12 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.MNS.Z. | 1997-12-25T22:21:20.96 | 10.0 | undecidable | manual | SG | 214 | 0.5217 | -0.3 | 0.5 | |
--.SNTG.Z. | 1997-12-25T22:21:18.65 | 10.0 | undecidable | manual | SG | 346 | 0.444 | -0.16 | 0.7 | |
--.ASS.Z. | 1997-12-25T22:21:17.74 | 10.0 | undecidable | manual | SG | 307 | 0.3996 | 0.42 | 0.4 | |
--.AQU.Z. | 1997-12-25T22:21:13.41 | 10.0 | undecidable | manual | PG | 153 | 0.5106 | 0.34 | 1.1 | |
--.MNS.Z. | 1997-12-25T22:21:12.89 | 10.0 | undecidable | manual | PG | 214 | 0.5217 | -0.27 | 1.3 | |
--.ASS.Z. | 1997-12-25T22:21:11.29 | 10.0 | undecidable | manual | PG | 307 | 0.3996 | 0.39 | 1 | |
--.SNTG.Z. | 1997-12-25T22:21:11.36 | 10.0 | undecidable | manual | PG | 346 | 0.444 | -0.4 | 0.9 | |
--.NRCA.Z. | 1997-12-25T22:21:05.83 | 10.0 | undecidable | manual | PG | 56 | 0.0222 | -0.05 | 2.1 |