A magnitude Md 2.2 earthquake occured in region: 3 km N Norcia (PG), on
and geographic coordinates (lat, lon) 42.8220, 13.1020 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 |
---|---|---|---|---|
Norcia | PG | 3 | 4957 | 4957 |
Preci | PG | 8 | 724 | 5681 |
Castelsantangelo sul Nera | MC | 9 | 281 | 5962 |
Visso | MC | 12 | 1107 | 7069 |
Cascia | PG | 14 | 3217 | 10286 |
Ussita | MC | 14 | 444 | 10730 |
Cerreto di Spoleto | PG | 15 | 1075 | 11805 |
Sellano | PG | 16 | 1079 | 12884 |
Arquata del Tronto | AP | 17 | 1178 | 14062 |
Poggiodomo | PG | 18 | 117 | 14179 |
Accumoli | RI | 18 | 667 | 14846 |
Montegallo | AP | 19 | 523 | 15369 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.2 | 1987-09-28 15:58:33 |
42.822 | 13.102 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 56169 |
Field | Value |
---|---|
Time (UTC) | 1987-09-28 15:58:33 ± 0.15 |
Latitude | 42.8220 ± 0.0088 |
Longitude | 13.1020 ± 0.0130 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 56169 |
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) | 1439.4 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 134 |
Number of associated phases, regardless of their use for origin computation | 9 |
Number of defining phases | 9 |
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) | 0.00308 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00615 |
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 | 2.2 |
Uncertainty | |
Num. used stations | 2 |
Type of magnitude | Md |
Reference to an origin | 56169 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:53:58 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.ARV.Z. | 1987-09-28T15:58:57.00 | 10.0 | undecidable | manual | SG | 350 | 0.6882 | -0.64 | 0.1 | |
--.MNS.Z. | 1987-09-28T15:58:52.50 | 10.0 | undecidable | manual | SG | 215 | 0.5328 | -0.32 | 0.4 | |
--.CM8.Z. | 1987-09-28T15:58:48.50 | 10.0 | undecidable | manual | SG | 4 | 0.3663 | 0.44 | 0.4 | |
--.ARV.Z. | 1987-09-28T15:58:47.00 | 10.0 | undecidable | manual | PG | 350 | 0.6882 | -0.52 | 0.4 | |
--.ALP.Z. | 1987-09-28T15:58:46.37 | 10.0 | undecidable | manual | SG | 97 | 0.3441 | -0.27 | 0.7 | |
--.MNS.Z. | 1987-09-28T15:58:45.00 | 10.0 | undecidable | manual | PG | 215 | 0.5328 | 0.26 | 1.2 | |
--.PRG.Z. | 1987-09-28T15:58:42.00 | 10.0 | undecidable | manual | PG! | 298 | 0.5883 | -3.68 | 0 | |
--.ALP.Z. | 1987-09-28T15:58:41.20 | 10.0 | undecidable | manual | PG | 97 | 0.3441 | 0.03 | 3.4 | |
--.CM8.Z. | 1987-09-28T15:58:41.98 | 10.0 | undecidable | manual | PG | 4 | 0.3663 | 0.25 | 2.5 |