A magnitude Md 2.1 earthquake occured in region: 1 km W Vallo di Nera (PG), on
and geographic coordinates (lat, lon) 42.7690, 12.8570 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 |
---|---|---|---|---|
Vallo di Nera | PG | 1 | 364 | 364 |
Sant'Anatolia di Narco | PG | 4 | 564 | 928 |
Scheggino | PG | 7 | 461 | 1389 |
Cerreto di Spoleto | PG | 8 | 1075 | 2464 |
Campello sul Clitunno | PG | 9 | 2442 | 4906 |
Poggiodomo | PG | 9 | 117 | 5023 |
Spoleto | PG | 10 | 38218 | 43241 |
Cascia | PG | 14 | 3217 | 46458 |
Sellano | PG | 15 | 1079 | 47537 |
Trevi | PG | 15 | 8469 | 56006 |
Monteleone di Spoleto | PG | 15 | 599 | 56605 |
Castel Ritaldi | PG | 16 | 3278 | 59883 |
Ferentillo | TR | 17 | 1913 | 61796 |
Preci | PG | 19 | 724 | 62520 |
Norcia | PG | 20 | 4957 | 67477 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.1 | 1985-04-25 05:53:11 |
42.769 | 12.857 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 5459 |
Field | Value |
---|---|
Time (UTC) | 1985-04-25 05:53:11 ± 0.185 |
Latitude | 42.7690 ± 0.0062 |
Longitude | 12.8570 ± 0.0286 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 5459 |
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) | 2434.6 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 187 |
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) | 0.00178 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00421 |
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 | 5459 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:09:54 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.CM2.Z. | 1985-04-25T05:53:28.90 | 10.0 | undecidable | manual | SG | 26 | 0.4662 | 0.24 | 0.3 | |
--.MNS.Z. | 1985-04-25T05:53:27.00 | 10.0 | undecidable | manual | SG | 198 | 0.3996 | 0.48 | 0 | |
--.CM2.Z. | 1985-04-25T05:53:21.30 | 10.0 | undecidable | manual | PG | 26 | 0.4662 | -0.14 | 1 | |
--.MNS.Z. | 1985-04-25T05:53:20.00 | 10.0 | undecidable | manual | PG | 198 | 0.3996 | -0.21 | 0.8 | |
--.PO9.Z. | 1985-04-25T05:53:20.00 | 10.0 | undecidable | manual | SG | 162 | 0.1998 | -0.06 | 0.9 | |
--.PO9.Z. | 1985-04-25T05:53:16.50 | 10.0 | positive | manual | PG | 162 | 0.1998 | 0.02 | 3 |