A magnitude Md 2.3 earthquake occured in region: 6 km NW Arquata del Tronto (AP), on
and geographic coordinates (lat, lon) 42.8090, 13.2400 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 | 9 | 523 | 1701 |
Castelsantangelo sul Nera | MC | 12 | 281 | 1982 |
Norcia | PG | 12 | 4957 | 6939 |
Montemonaco | AP | 12 | 604 | 7543 |
Accumoli | RI | 13 | 667 | 8210 |
Acquasanta Terme | AP | 15 | 2916 | 11126 |
Montefortino | FM | 17 | 1178 | 12304 |
Ussita | MC | 17 | 444 | 12748 |
Preci | PG | 18 | 724 | 13472 |
Visso | MC | 18 | 1107 | 14579 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.3
ML-VAX 2.1 |
1991-12-01 08:13:33 |
42.809 | 13.24 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 154289 |
Field | Value |
---|---|
Time (UTC) | 1991-12-01 08:13:33 ± 0.291 |
Latitude | 42.8090 ± 0.0103 |
Longitude | 13.2400 ± 0.0304 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 154289 |
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) | 2731.1 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 182 |
Number of associated phases, regardless of their use for origin computation | 8 |
Number of defining phases | 8 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.3 |
Epicentral distance of station closest to the epicenter (degree) | 0.00421 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00648 |
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 | 2.3 |
Uncertainty | |
Num. used stations | 2 |
Type of magnitude | Md |
Reference to an origin | 154289 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 19:24:02 |
Field | Value |
---|---|
Value | 2.1 |
Uncertainty | |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 154289 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2015-04-28 13:07:13 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.ARV.Z. | 1991-12-01T08:13:59.18 | 10.0 | undecidable | manual | SG | 342 | 0.7215 | 0.44 | 0.3 | |
--.MNS.Z. | 1991-12-01T08:13:54.40 | 10.0 | undecidable | manual | SG | 224 | 0.5883 | -0.1 | 0.6 | |
--.AQU.Z. | 1991-12-01T08:13:53.72 | 10.0 | undecidable | manual | SG! | 165 | 0.4662 | 3.1 | 0 | |
--.ASS.Z. | 1991-12-01T08:13:50.64 | 10.0 | undecidable | manual | SG | 300 | 0.4995 | -0.93 | 0 | |
--.ARV.Z. | 1991-12-01T08:13:48.23 | 10.0 | undecidable | manual | PG | 342 | 0.7215 | 0.1 | 1.4 | |
--.MNS.Z. | 1991-12-01T08:13:46.00 | 10.0 | positive | manual | PG | 224 | 0.5883 | 0.32 | 2.2 | |
--.AQU.Z. | 1991-12-01T08:13:43.20 | 10.0 | undecidable | manual | PG | 165 | 0.4662 | -0.42 | 0.9 | |
--.ASS.Z. | 1991-12-01T08:13:43.89 | 10.0 | undecidable | manual | PG | 300 | 0.4995 | -0.09 | 1.6 |