A magnitude Md 2.1 earthquake occured in region: 3 km NW Spoleto (PG), on
and geographic coordinates (lat, lon) 42.7570, 12.7200 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 |
---|---|---|---|---|
Spoleto | PG | 3 | 38218 | 38218 |
Castel Ritaldi | PG | 8 | 3278 | 41496 |
Campello sul Clitunno | PG | 9 | 2442 | 43938 |
Sant'Anatolia di Narco | PG | 10 | 564 | 44502 |
Scheggino | PG | 10 | 461 | 44963 |
Vallo di Nera | PG | 12 | 364 | 45327 |
Trevi | PG | 14 | 8469 | 53796 |
Giano dell'Umbria | PG | 14 | 3846 | 57642 |
Acquasparta | TR | 16 | 4778 | 62420 |
Ferentillo | TR | 16 | 1913 | 64333 |
Massa Martana | PG | 16 | 3770 | 68103 |
Montefalco | PG | 16 | 5679 | 73782 |
Cerreto di Spoleto | PG | 18 | 1075 | 74857 |
Montefranco | TR | 18 | 1276 | 76133 |
Poggiodomo | PG | 18 | 117 | 76250 |
Arrone | TR | 20 | 2763 | 79013 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.1 | 1985-04-21 05:49:24 |
42.757 | 12.72 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 5069 |
Field | Value |
---|---|
Time (UTC) | 1985-04-21 05:49:24 ± 0.648 |
Latitude | 42.7570 ± 0.0284 |
Longitude | 12.7200 ± 0.0788 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 5069 |
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) | 7171.2 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 212 |
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) | 0.6 |
Epicentral distance of station closest to the epicenter (degree) | 0.00219 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00478 |
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 | 5069 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:09:34 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.CM2.Z. | 1985-04-21T05:49:42.90 | 10.0 | undecidable | manual | SG | 35 | 0.5328 | -0.73 | 0.5 | |
--.CM2.Z. | 1985-04-21T05:49:37.70 | 10.0 | undecidable | manual | PG | 35 | 0.5328 | 2.12 | 0.4 | |
--.AS1.Z. | 1985-04-21T05:49:36.00 | 10.0 | undecidable | manual | SG | 350 | 0.3108 | -0.43 | 0.6 | |
--.PO9.Z. | 1985-04-21T05:49:34.50 | 10.0 | undecidable | manual | SG | 138 | 0.2442 | 0.14 | 0.8 | |
--.AS1.Z. | 1985-04-21T05:49:31.50 | 10.0 | undecidable | manual | PG | 350 | 0.3108 | 0.07 | 2 | |
--.PO9.Z. | 1985-04-21T05:49:30.00 | 10.0 | undecidable | manual | PG | 138 | 0.2442 | -0.23 | 1.8 |