A magnitude Md 2.3 earthquake occured in region: 4 km NW Norcia (PG), on
and geographic coordinates (lat, lon) 42.8120, 13.0490 at 18 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 | 4 | 4957 | 4957 |
Preci | PG | 8 | 724 | 5681 |
Cascia | PG | 11 | 3217 | 8898 |
Cerreto di Spoleto | PG | 11 | 1075 | 9973 |
Castelsantangelo sul Nera | MC | 13 | 281 | 10254 |
Sellano | PG | 13 | 1079 | 11333 |
Visso | MC | 14 | 1107 | 12440 |
Poggiodomo | PG | 14 | 117 | 12557 |
Vallo di Nera | PG | 16 | 364 | 12921 |
Ussita | MC | 17 | 444 | 13365 |
Monteleone di Spoleto | PG | 19 | 599 | 13964 |
Sant'Anatolia di Narco | PG | 19 | 564 | 14528 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.3 | 1997-11-27 16:47:34 |
42.812 | 13.049 | 17 | 2013-07-15 08:40:51 |
Bollettino Sismico Italiano INGV | 314229 |
Field | Value |
---|---|
Time (UTC) | 1997-11-27 16:47:34 ± 0.289 |
Latitude | 42.8120 ± 0.0079 |
Longitude | 13.0490 ± 0.0248 |
Depth (km) | 17 ± 2 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 314229 |
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) | 2205.3 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 146 |
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) | 0.00040 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00453 |
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 | 3 |
Type of magnitude | Md |
Reference to an origin | 314229 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 21:54:40 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.MNS.Z. | 1997-11-27T16:47:52.00 | 10.0 | undecidable | manual | SG | 212 | 0.4995 | -0.54 | 0.2 | |
--.SNTG.Z. | 1997-11-27T16:47:50.56 | 10.0 | undecidable | manual | SG | 349 | 0.444 | -0.26 | 0.6 | |
--.ASS.Z. | 1997-11-27T16:47:48.42 | 10.0 | undecidable | manual | SG | 310 | 0.3774 | -0.29 | 0.6 | |
--.MNS.Z. | 1997-11-27T16:47:45.00 | 10.0 | undecidable | manual | PG | 212 | 0.4995 | 0.2 | 1.6 | |
--.SNTG.Z. | 1997-11-27T16:47:43.60 | 10.0 | undecidable | manual | PG | 349 | 0.444 | -0.21 | 1.6 | |
--.ASS.Z. | 1997-11-27T16:47:43.50 | 10.0 | undecidable | manual | PG | 310 | 0.3774 | 0.46 | 0.7 | |
--.NRCA.Z. | 1997-11-27T16:47:40.37 | 10.0 | undecidable | manual | SG | 65 | 0.0444 | 0.22 | 0.7 | |
--.NRCA.Z. | 1997-11-27T16:47:37.52 | 10.0 | undecidable | manual | PG | 65 | 0.0444 | -0.13 | 2.1 |