A magnitude Md 2.1 earthquake occured in region: 1 km S Norcia (PG), on
and geographic coordinates (lat, lon) 42.7820, 13.0930 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 | 1 | 4957 | 4957 |
Cascia | PG | 10 | 3217 | 8174 |
Preci | PG | 12 | 724 | 8898 |
Castelsantangelo sul Nera | MC | 14 | 281 | 9179 |
Poggiodomo | PG | 15 | 117 | 9296 |
Cerreto di Spoleto | PG | 15 | 1075 | 10371 |
Accumoli | RI | 16 | 667 | 11038 |
Arquata del Tronto | AP | 17 | 1178 | 12216 |
Visso | MC | 17 | 1107 | 13323 |
Sellano | PG | 18 | 1079 | 14402 |
Monteleone di Spoleto | PG | 18 | 599 | 15001 |
Ussita | MC | 19 | 444 | 15445 |
Vallo di Nera | PG | 19 | 364 | 15809 |
Cittareale | RI | 19 | 482 | 16291 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.1
ML-VAX 1.7 |
1989-10-20 05:06:10 |
42.782 | 13.093 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 102509 |
Field | Value |
---|---|
Time (UTC) | 1989-10-20 05:06:10 ± 0.079 |
Latitude | 42.7820 ± 0.0049 |
Longitude | 13.0930 ± 0.0067 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 102509 |
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) | 774.3 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 127 |
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) | 0.1 |
Epicentral distance of station closest to the epicenter (degree) | 0.00308 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00445 |
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 | 2.1 |
Uncertainty | |
Num. used stations | 2 |
Type of magnitude | Md |
Reference to an origin | 102509 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 18:35:31 |
Field | Value |
---|---|
Value | 1.7 |
Uncertainty | |
Num. used stations | 1 |
Type of magnitude | ML |
Reference to an origin | 102509 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2015-04-28 13:07:13 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.MNS.Z. | 1989-10-20T05:06:28.46 | 10.0 | undecidable | manual | SG | 217 | 0.4995 | 0.1 | 0.7 | |
--.ASS.Z. | 1989-10-20T05:06:26.50 | 10.0 | undecidable | manual | SG | 311 | 0.4218 | 0.44 | 0.1 | |
--.CM8.Z. | 1989-10-20T05:06:25.58 | 10.0 | undecidable | manual | SG | 5 | 0.4107 | -0.06 | 0.8 | |
--.ALP.Z. | 1989-10-20T05:06:23.72 | 10.0 | undecidable | manual | SG | 90 | 0.3441 | 0.23 | 0.4 | |
--.MNS.Z. | 1989-10-20T05:06:20.61 | 10.0 | undecidable | manual | PG | 217 | 0.4995 | -0.17 | 1.3 | |
--.ASS.Z. | 1989-10-20T05:06:19.50 | 10.0 | undecidable | manual | PG | 311 | 0.4218 | 0.05 | 2 | |
--.ALP.Z. | 1989-10-20T05:06:18.40 | 10.0 | undecidable | manual | PG | 90 | 0.3441 | 0.07 | 1.9 | |
--.CM8.Z. | 1989-10-20T05:06:18.92 | 10.0 | undecidable | manual | PG | 5 | 0.4107 | -0.29 | 0.7 |