A magnitude Md 2.1 earthquake occured in region: 5 km SW Arquata del Tronto (AP), on
and geographic coordinates (lat, lon) 42.7460, 13.2490 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 | 5 | 1178 | 1178 |
Accumoli | RI | 6 | 667 | 1845 |
Montegallo | AP | 13 | 523 | 2368 |
Amatrice | RI | 13 | 2657 | 5025 |
Acquasanta Terme | AP | 13 | 2916 | 7941 |
Norcia | PG | 14 | 4957 | 12898 |
Cittareale | RI | 16 | 482 | 13380 |
Montemonaco | AP | 18 | 604 | 13984 |
Castelsantangelo sul Nera | MC | 18 | 281 | 14265 |
Cascia | PG | 19 | 3217 | 17482 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.1 | 1997-07-25 18:52:13 |
42.746 | 13.249 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 273969 |
Field | Value |
---|---|
Time (UTC) | 1997-07-25 18:52:13 ± 0.244 |
Latitude | 42.7460 ± 0.0075 |
Longitude | 13.2490 ± 0.0218 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 273969 |
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) | 1964.3 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 180 |
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) | 0.2 |
Epicentral distance of station closest to the epicenter (degree) | 0.00364 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00704 |
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 | 2.1 |
Uncertainty | |
Num. used stations | 2 |
Type of magnitude | Md |
Reference to an origin | 273969 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 21:18:53 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.ARV.Z. | 1997-07-25T18:52:40.38 | 10.0 | undecidable | manual | SG | 343 | 0.777 | -0.03 | 0.7 | |
--.MNS.Z. | 1997-07-25T18:52:33.40 | 10.0 | undecidable | manual | SG | 229 | 0.5439 | 0.09 | 0.8 | |
--.ASS.Z. | 1997-07-25T18:52:32.75 | 10.0 | undecidable | manual | SG | 306 | 0.5328 | 0.22 | 0.7 | |
--.AQU.Z. | 1997-07-25T18:52:29.30 | 10.0 | undecidable | manual | SG | 163 | 0.3996 | 0.71 | 0.1 | |
--.ARV.Z. | 1997-07-25T18:52:29.50 | 10.0 | undecidable | manual | PG | 343 | 0.777 | 0.09 | 1.7 | |
--.ASS.Z. | 1997-07-25T18:52:24.13 | 10.0 | undecidable | manual | PG | 306 | 0.5328 | -0.27 | 1.6 | |
--.MNS.Z. | 1997-07-25T18:52:24.60 | 10.0 | undecidable | manual | PG | 229 | 0.5439 | -0.05 | 2 | |
--.AQU.Z. | 1997-07-25T18:52:21.32 | 10.0 | undecidable | manual | PG | 163 | 0.3996 | -0.66 | 0.4 |