A magnitude Md 2.3 earthquake occured in region: 7 km W Arquata del Tronto (AP), on
and geographic coordinates (lat, lon) 42.7750, 13.2160 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 |
---|---|---|---|---|
Arquata del Tronto | AP | 7 | 1178 | 1178 |
Accumoli | RI | 9 | 667 | 1845 |
Norcia | PG | 10 | 4957 | 6802 |
Montegallo | AP | 12 | 523 | 7325 |
Castelsantangelo sul Nera | MC | 14 | 281 | 7606 |
Acquasanta Terme | AP | 16 | 2916 | 10522 |
Montemonaco | AP | 17 | 604 | 11126 |
Amatrice | RI | 17 | 2657 | 13783 |
Cascia | PG | 18 | 3217 | 17000 |
Cittareale | RI | 18 | 482 | 17482 |
Preci | PG | 19 | 724 | 18206 |
Ussita | MC | 20 | 444 | 18650 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.3 | 1985-12-09 05:21:25 |
42.775 | 13.216 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 17719 |
Field | Value |
---|---|
Time (UTC) | 1985-12-09 05:21:25 ± 0.224 |
Latitude | 42.7750 ± 0.0110 |
Longitude | 13.2160 ± 0.0305 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 17719 |
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) | 2771.5 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 169 |
Number of associated phases, regardless of their use for origin computation | 9 |
Number of defining phases | 9 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.4 |
Epicentral distance of station closest to the epicenter (degree) | 0.00372 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00672 |
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 | 2.3 |
Uncertainty | |
Num. used stations | 4 |
Type of magnitude | Md |
Reference to an origin | 17719 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:20:32 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.ARV.Z. | 1985-12-09T05:21:52.30 | 10.0 | undecidable | manual | SG | 344 | 0.7437 | 0.52 | 0.4 | |
--.ASS.Z. | 1985-12-09T05:21:44.00 | 10.0 | undecidable | manual | SG | 304 | 0.4995 | 0.16 | 0.8 | |
--.AQU.Z. | 1985-12-09T05:21:43.00 | 10.0 | undecidable | manual | SG | 161 | 0.444 | 1.07 | 0.1 | |
--.CM2.Z. | 1985-12-09T05:21:41.27 | 10.0 | undecidable | manual | SG | 352 | 0.4107 | 0.07 | 1.2 | |
--.ARV.Z. | 1985-12-09T05:21:40.50 | 10.0 | undecidable | manual | PG | 344 | 0.7437 | -0.29 | 1.5 | |
--.ASS.Z. | 1985-12-09T05:21:37.00 | 10.0 | undecidable | manual | PG | 304 | 0.4995 | 0.79 | 0.7 | |
--.MNS.Z. | 1985-12-09T05:21:36.50 | 10.0 | undecidable | manual | PG | 225 | 0.5439 | -0.68 | 0.9 | |
--.AQU.Z. | 1985-12-09T05:21:35.00 | 10.0 | undecidable | manual | PG | 161 | 0.444 | -0.11 | 2 | |
--.CM2.Z. | 1985-12-09T05:21:34.18 | 10.0 | undecidable | manual | PG | 352 | 0.4107 | -0.51 | 1.3 |