A magnitude Md 2.3 earthquake occured in region: 4 km S Preci (PG), on
and geographic coordinates (lat, lon) 42.8410, 13.0390 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 |
---|---|---|---|---|
Preci | PG | 4 | 724 | 724 |
Norcia | PG | 7 | 4957 | 5681 |
Cerreto di Spoleto | PG | 10 | 1075 | 6756 |
Sellano | PG | 11 | 1079 | 7835 |
Visso | MC | 11 | 1107 | 8942 |
Castelsantangelo sul Nera | MC | 11 | 281 | 9223 |
Cascia | PG | 14 | 3217 | 12440 |
Ussita | MC | 14 | 444 | 12884 |
Vallo di Nera | PG | 16 | 364 | 13248 |
Poggiodomo | PG | 17 | 117 | 13365 |
Monte Cavallo | MC | 17 | 145 | 13510 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.3 | 1987-09-22 10:52:23 |
42.841 | 13.039 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 55859 |
Field | Value |
---|---|
Time (UTC) | 1987-09-22 10:52:23 ± 0.135 |
Latitude | 42.8410 ± 0.0071 |
Longitude | 13.0390 ± 0.0110 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 55859 |
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) | 1195.6 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 111 |
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) | 0.00316 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00591 |
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 | 55859 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:53:42 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.ARV.Z. | 1987-09-22T10:52:47.00 | 10.0 | undecidable | manual | SG | 354 | 0.6549 | 0.72 | 0.1 | |
--.MNS.Z. | 1987-09-22T10:52:42.00 | 10.0 | undecidable | manual | SG | 210 | 0.5217 | 0.03 | 0.7 | |
--.ALP.Z. | 1987-09-22T10:52:37.71 | 10.0 | undecidable | manual | SG | 98 | 0.3885 | 0.08 | 1.1 | |
--.CM8.Z. | 1987-09-22T10:52:36.50 | 10.0 | undecidable | manual | SG | 12 | 0.3552 | -0.17 | 1 | |
--.ASS.Z. | 1987-09-22T10:52:36.56 | 10.0 | undecidable | manual | SG | 308 | 0.3552 | -0.04 | 0.8 | |
--.ARV.Z. | 1987-09-22T10:52:36.00 | 10.0 | undecidable | manual | PG | 354 | 0.6549 | -0.5 | 0.5 | |
--.MNS.Z. | 1987-09-22T10:52:33.80 | 10.0 | undecidable | manual | PG | 210 | 0.5217 | -0.21 | 1.5 | |
--.ALP.Z. | 1987-09-22T10:52:32.21 | 10.0 | undecidable | manual | PG? | 98 | 0.3885 | 0.7 | 0.1 | |
--.ASS.Z. | 1987-09-22T10:52:31.21 | 10.0 | undecidable | manual | PG | 308 | 0.3552 | 0.3 | 1.3 | |
--.CM8.Z. | 1987-09-22T10:52:30.70 | 10.0 | undecidable | manual | PG | 12 | 0.3552 | -0.25 | 2.9 |