A magnitude Md 2.1 earthquake occured in region: 3 km NE Cascia (PG), on
and geographic coordinates (lat, lon) 42.7380, 13.0450 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 |
---|---|---|---|---|
Cascia | PG | 3 | 3217 | 3217 |
Norcia | PG | 7 | 4957 | 8174 |
Poggiodomo | PG | 9 | 117 | 8291 |
Monteleone di Spoleto | PG | 12 | 599 | 8890 |
Cerreto di Spoleto | PG | 14 | 1075 | 9965 |
Vallo di Nera | PG | 15 | 364 | 10329 |
Preci | PG | 16 | 724 | 11053 |
Cittareale | RI | 16 | 482 | 11535 |
Sant'Anatolia di Narco | PG | 17 | 564 | 12099 |
Accumoli | RI | 17 | 667 | 12766 |
Scheggino | PG | 18 | 461 | 13227 |
Sellano | PG | 19 | 1079 | 14306 |
Castelsantangelo sul Nera | MC | 20 | 281 | 14587 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.1 | 1991-07-22 21:18:26 |
42.738 | 13.045 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 145989 |
Field | Value |
---|---|
Time (UTC) | 1991-07-22 21:18:26 ± 0.224 |
Latitude | 42.7380 ± 0.0104 |
Longitude | 13.0450 ± 0.0258 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 145989 |
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) | 2401.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 188 |
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) | 0.2 |
Epicentral distance of station closest to the epicenter (degree) | 0.00219 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00680 |
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 | 2.1 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | Md |
Reference to an origin | 145989 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 19:16:17 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.ARV.Z. | 1991-07-22T21:18:52.84 | 10.0 | undecidable | manual | SG | 354 | 0.7548 | 0.28 | 0.4 | |
--.CIO.Z. | 1991-07-22T21:18:43.18 | 10.0 | undecidable | manual | SG | 9 | 0.4551 | 0.3 | 0.5 | |
--.MNS.Z. | 1991-07-22T21:18:42.00 | 10.0 | undecidable | manual | SG | 217 | 0.444 | -0.28 | 0.5 | |
--.ASS.Z. | 1991-07-22T21:18:41.57 | 10.0 | undecidable | manual | SG | 318 | 0.4329 | -0.38 | 0.4 | |
--.ARV.Z. | 1991-07-22T21:18:41.41 | 10.0 | undecidable | manual | PG | 354 | 0.7548 | 0.02 | 1.4 | |
--.MNS.Z. | 1991-07-22T21:18:35.50 | 10.0 | undecidable | manual | PG | 217 | 0.444 | 0.04 | 1.9 | |
--.CIO.Z. | 1991-07-22T21:18:35.80 | 10.0 | undecidable | manual | PG | 9 | 0.4551 | 0 | 1.9 | |
--.ASS.Z. | 1991-07-22T21:18:35.35 | 10.0 | undecidable | manual | PG | 318 | 0.4329 | 0.09 | 1.8 | |
--.RMF.Z. | 1991-07-22T21:18:34.78 | 10.0 | undecidable | manual | SG | 29 | 0.2442 | -1.2 | 0 | |
--.RMF.Z. | 1991-07-22T21:18:32.18 | 10.0 | undecidable | manual | PG | 29 | 0.2442 | 0.37 | 1.1 |