A magnitude Md 2.1 earthquake occured in region: 3 km E Poggiodomo (PG), on
and geographic coordinates (lat, lon) 42.7080, 12.9690 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 |
---|---|---|---|---|
Poggiodomo | PG | 3 | 117 | 117 |
Cascia | PG | 4 | 3217 | 3334 |
Monteleone di Spoleto | PG | 6 | 599 | 3933 |
Vallo di Nera | PG | 11 | 364 | 4297 |
Scheggino | PG | 11 | 461 | 4758 |
Sant'Anatolia di Narco | PG | 11 | 564 | 5322 |
Cerreto di Spoleto | PG | 13 | 1075 | 6397 |
Norcia | PG | 14 | 4957 | 11354 |
Leonessa | RI | 16 | 2435 | 13789 |
Polino | TR | 17 | 233 | 14022 |
Ferentillo | TR | 18 | 1913 | 15935 |
Cittareale | RI | 19 | 482 | 16417 |
Spoleto | PG | 19 | 38218 | 54635 |
Preci | PG | 20 | 724 | 55359 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.1 | 1987-04-03 10:31:04 |
42.708 | 12.969 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 44139 |
Field | Value |
---|---|
Time (UTC) | 1987-04-03 10:31:04 ± 0.535 |
Latitude | 42.7080 ± 0.0279 |
Longitude | 12.9690 ± 0.0200 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 44139 |
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) | 3505.7 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 312 |
Number of associated phases, regardless of their use for origin computation | 6 |
Number of defining phases | 6 |
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) | 0.00380 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00704 |
Number of stations at which the event was observed | 3 |
Number of stations from which data was used for origin computation | 3 |
Field | Value |
---|---|
Value | 2.1 |
Uncertainty | |
Num. used stations | 2 |
Type of magnitude | Md |
Reference to an origin | 44139 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:43:36 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.ARV.Z. | 1987-04-03T10:31:31.90 | 10.0 | undecidable | manual | SG | 358 | 0.777 | 0.48 | 0.1 | |
--.CM8.Z. | 1987-04-03T10:31:21.73 | 10.0 | undecidable | manual | SG | 14 | 0.4995 | -0.45 | 0.1 | |
--.ARV.Z. | 1987-04-03T10:31:20.10 | 10.0 | undecidable | manual | PG | 358 | 0.777 | 0.22 | 1.1 | |
--.ASS.Z. | 1987-04-03T10:31:19.50 | 10.0 | undecidable | manual | SG | 326 | 0.4218 | -0.13 | 1 | |
--.CM8.Z. | 1987-04-03T10:31:14.47 | 10.0 | undecidable | manual | PG | 14 | 0.4995 | -0.08 | 1.8 | |
--.ASS.Z. | 1987-04-03T10:31:13.00 | 10.0 | undecidable | manual | PG | 326 | 0.4218 | -0.07 | 1.9 |