A magnitude Md 2.5 earthquake occured in region: 5 km NW Norcia (PG), on
and geographic coordinates (lat, lon) 42.8330, 13.0600 at 16 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 | 5 | 4957 | 4957 |
Preci | PG | 5 | 724 | 5681 |
Castelsantangelo sul Nera | MC | 10 | 281 | 5962 |
Visso | MC | 11 | 1107 | 7069 |
Cerreto di Spoleto | PG | 12 | 1075 | 8144 |
Sellano | PG | 13 | 1079 | 9223 |
Cascia | PG | 13 | 3217 | 12440 |
Ussita | MC | 14 | 444 | 12884 |
Poggiodomo | PG | 17 | 117 | 13001 |
Vallo di Nera | PG | 18 | 364 | 13365 |
Monte Cavallo | MC | 19 | 145 | 13510 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.5 | 1998-01-23 04:02:55 |
42.833 | 13.06 | 16 | 2013-07-15 08:40:51 |
Bollettino Sismico Italiano INGV | 321279 |
Field | Value |
---|---|
Time (UTC) | 1998-01-23 04:02:55 ± 0.259 |
Latitude | 42.8330 ± 0.0112 |
Longitude | 13.0600 ± 0.0275 |
Depth (km) | 16 ± 3 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 321279 |
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) | 2569.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 97 |
Number of associated phases, regardless of their use for origin computation | 10 |
Number of defining phases | 10 |
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) | 0.00032 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00599 |
Number of stations at which the event was observed | 6 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 2.5 |
Uncertainty | |
Num. used stations | 4 |
Type of magnitude | Md |
Reference to an origin | 321279 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 22:01:13 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.MNS.Z. | 1998-01-23T04:03:14.77 | 10.0 | undecidable | manual | SG | 212 | 0.5217 | 0.54 | 0.2 | |
--.SNTG.Z. | 1998-01-23T04:03:12.20 | 10.0 | undecidable | manual | SG | 348 | 0.4218 | 0.89 | 0.1 | |
--.ASS.Z. | 1998-01-23T04:03:08.91 | 10.0 | undecidable | manual | SG | 307 | 0.3663 | -0.5 | 0.3 | |
--.ARV.Z. | 1998-01-23T04:03:08.81 | 10.0 | undecidable | manual | PG | 352 | 0.666 | -0.02 | 1.3 | |
--.AQU.Z. | 1998-01-23T04:03:06.43 | 10.0 | undecidable | manual | PG | 152 | 0.5439 | -0.01 | 1.5 | |
--.MNS.Z. | 1998-01-23T04:03:06.21 | 10.0 | undecidable | manual | PG | 212 | 0.5217 | 0 | 1.5 | |
--.SNTG.Z. | 1998-01-23T04:03:04.39 | 10.0 | undecidable | manual | PG | 348 | 0.4218 | -0.03 | 1.7 | |
--.ASS.Z. | 1998-01-23T04:03:03.20 | 10.0 | undecidable | manual | PG | 307 | 0.3663 | -0.22 | 1.5 | |
--.NRCA.Z. | 1998-01-23T04:03:01.58 | 10.0 | undecidable | manual | SG | 89 | 0.0333 | 0.99 | 0 | |
--.NRCA.Z. | 1998-01-23T04:02:57.91 | 10.0 | positive | manual | PG | 89 | 0.0333 | -0.42 | 2 |