A magnitude Md 2.2 earthquake occured in region: 5 km SW Norcia (PG), on
and geographic coordinates (lat, lon) 42.7640, 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 |
---|---|---|---|---|
Norcia | PG | 5 | 4957 | 4957 |
Cascia | PG | 6 | 3217 | 8174 |
Poggiodomo | PG | 11 | 117 | 8291 |
Cerreto di Spoleto | PG | 12 | 1075 | 9366 |
Preci | PG | 13 | 724 | 10090 |
Monteleone di Spoleto | PG | 15 | 599 | 10689 |
Vallo di Nera | PG | 15 | 364 | 11053 |
Sellano | PG | 17 | 1079 | 12132 |
Castelsantangelo sul Nera | MC | 17 | 281 | 12413 |
Sant'Anatolia di Narco | PG | 17 | 564 | 12977 |
Scheggino | PG | 18 | 461 | 13438 |
Accumoli | RI | 18 | 667 | 14105 |
Cittareale | RI | 19 | 482 | 14587 |
Visso | MC | 19 | 1107 | 15694 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.2 | 1987-09-18 10:09:28 |
42.764 | 13.045 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 55639 |
Field | Value |
---|---|
Time (UTC) | 1987-09-18 10:09:28 ± 0.144 |
Latitude | 42.7640 ± 0.0080 |
Longitude | 13.0450 ± 0.0128 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 55639 |
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) | 1375.5 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 128 |
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) | 0.00340 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00664 |
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 | 2.2 |
Uncertainty | |
Num. used stations | 1 |
Type of magnitude | Md |
Reference to an origin | 55639 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:53:30 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.ARV.Z. | 1987-09-18T10:09:54.50 | 10.0 | undecidable | manual | SG | 354 | 0.7326 | -0.06 | 0.5 | |
--.CM8.Z. | 1987-09-18T10:09:45.60 | 10.0 | undecidable | manual | SG | 9 | 0.4329 | 0.18 | 0.9 | |
--.MNS.Z. | 1987-09-18T10:09:45.00 | 10.0 | undecidable | manual | SG | 215 | 0.4551 | -0.77 | 0.1 | |
--.ASS.Z. | 1987-09-18T10:09:44.00 | 10.0 | undecidable | manual | SG | 316 | 0.4107 | -0.17 | 0.6 | |
--.ALP.Z. | 1987-09-18T10:09:43.45 | 10.0 | undecidable | manual | SG | 87 | 0.3774 | 0.28 | 0.8 | |
--.ARV.Z. | 1987-09-18T10:09:43.00 | 10.0 | undecidable | manual | PG | 354 | 0.7326 | -0.74 | 0.3 | |
--.MNS.Z. | 1987-09-18T10:09:38.80 | 10.0 | positive | manual | PG | 215 | 0.4551 | 0.14 | 3.2 | |
--.CM8.Z. | 1987-09-18T10:09:38.60 | 10.0 | undecidable | manual | PG | 9 | 0.4329 | -0.09 | 1.6 | |
--.ASS.Z. | 1987-09-18T10:09:38.50 | 10.0 | undecidable | manual | PG | 316 | 0.4107 | 0.76 | 0.3 | |
--.ALP.Z. | 1987-09-18T10:09:37.80 | 10.0 | undecidable | manual | PG | 87 | 0.3774 | -0.09 | 1.6 |