A magnitude Md 1.8 earthquake occured in region: 7 km E Norcia (PG), on
and geographic coordinates (lat, lon) 42.7770, 13.1820 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 | 7 | 4957 | 4957 |
Arquata del Tronto | AP | 10 | 1178 | 6135 |
Accumoli | RI | 11 | 667 | 6802 |
Castelsantangelo sul Nera | MC | 13 | 281 | 7083 |
Montegallo | AP | 14 | 523 | 7606 |
Cascia | PG | 15 | 3217 | 10823 |
Preci | PG | 16 | 724 | 11547 |
Cittareale | RI | 18 | 482 | 12029 |
Montemonaco | AP | 18 | 604 | 12633 |
Amatrice | RI | 19 | 2657 | 15290 |
Acquasanta Terme | AP | 19 | 2916 | 18206 |
Visso | MC | 19 | 1107 | 19313 |
Ussita | MC | 19 | 444 | 19757 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 1.8 | 1985-05-05 22:57:44 |
42.777 | 13.182 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 5909 |
Field | Value |
---|---|
Time (UTC) | 1985-05-05 22:57:44 ± 0.279 |
Latitude | 42.7770 ± 0.0155 |
Longitude | 13.1820 ± 0.0252 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 5909 |
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) | 2680.2 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 134 |
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) | 0.2 |
Epicentral distance of station closest to the epicenter (degree) | 0.00251 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00478 |
Number of stations at which the event was observed | 4 |
Number of stations from which data was used for origin computation | 4 |
Field | Value |
---|---|
Value | 1.8 |
Uncertainty | |
Num. used stations | 1 |
Type of magnitude | Md |
Reference to an origin | 5909 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:10:19 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.AS1.Z. | 1985-05-05T22:58:01.50 | 10.0 | undecidable | manual | SG | 306 | 0.4773 | -0.45 | 0.4 | |
--.CM2.Z. | 1985-05-05T22:57:59.90 | 10.0 | undecidable | manual | SG | 356 | 0.4107 | 0.03 | 1 | |
--.AS1.Z. | 1985-05-05T22:57:56.00 | 10.0 | undecidable | manual | PG? | 306 | 0.4773 | 1.39 | 0 | |
--.MNS.Z. | 1985-05-05T22:57:55.50 | 10.0 | undecidable | manual | PG | 223 | 0.5328 | -0.16 | 1.4 | |
--.CM2.Z. | 1985-05-05T22:57:53.10 | 10.0 | undecidable | manual | PG | 356 | 0.4107 | -0.3 | 1.4 | |
--.ALP.Z. | 1985-05-05T22:57:51.00 | 10.0 | undecidable | manual | PG | 89 | 0.2775 | 0.07 | 1.7 |