A magnitude Md 2.3 earthquake occured in region: 6 km W Arquata del Tronto (AP), on
and geographic coordinates (lat, lon) 42.7970, 13.2280 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 | 6 | 1178 | 1178 |
Montegallo | AP | 10 | 523 | 1701 |
Norcia | PG | 11 | 4957 | 6658 |
Accumoli | RI | 11 | 667 | 7325 |
Castelsantangelo sul Nera | MC | 13 | 281 | 7606 |
Montemonaco | AP | 14 | 604 | 8210 |
Acquasanta Terme | AP | 15 | 2916 | 11126 |
Preci | PG | 18 | 724 | 11850 |
Ussita | MC | 18 | 444 | 12294 |
Visso | MC | 19 | 1107 | 13401 |
Montefortino | FM | 19 | 1178 | 14579 |
Amatrice | RI | 19 | 2657 | 17236 |
Cascia | PG | 20 | 3217 | 20453 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.3 | 1987-05-19 20:39:38 |
42.797 | 13.228 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 47349 |
Field | Value |
---|---|
Time (UTC) | 1987-05-19 20:39:38 ± 0.783 |
Latitude | 42.7970 ± 0.0189 |
Longitude | 13.2280 ± 0.0715 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 47349 |
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) | 6204.6 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 240 |
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) | 0.5 |
Epicentral distance of station closest to the epicenter (degree) | 0.00445 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00656 |
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 | 2.3 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | Md |
Reference to an origin | 47349 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:46:25 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.ARV.Z. | 1987-05-19T20:40:03.00 | 10.0 | undecidable | manual | SG | 343 | 0.7326 | -1.09 | 0.1 | |
--.MNS.Z. | 1987-05-19T20:39:59.00 | 10.0 | undecidable | manual | SG | 224 | 0.5772 | -0.12 | 0.9 | |
--.ASS.Z. | 1987-05-19T20:39:57.50 | 10.0 | undecidable | manual | SG | 301 | 0.4995 | 0.91 | 0.3 | |
--.ARV.Z. | 1987-05-19T20:39:54.00 | 10.0 | undecidable | manual | PG | 343 | 0.7326 | 0.64 | 1.1 | |
--.MNS.Z. | 1987-05-19T20:39:50.50 | 10.0 | undecidable | manual | PG | 224 | 0.5772 | 0.01 | 2.2 | |
--.ASS.Z. | 1987-05-19T20:39:48.50 | 10.0 | undecidable | manual | PG | 301 | 0.4995 | -0.53 | 1.5 |