A magnitude Md 2.5 earthquake occured in region: 2 km S Accumoli (RI), on
and geographic coordinates (lat, lon) 42.6780, 13.2430 at 5 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 |
---|---|---|---|---|
Accumoli | RI | 2 | 667 | 667 |
Amatrice | RI | 7 | 2657 | 3324 |
Cittareale | RI | 9 | 482 | 3806 |
Arquata del Tronto | AP | 12 | 1178 | 4984 |
Campotosto | AQ | 17 | 542 | 5526 |
Montereale | AQ | 17 | 2581 | 8107 |
Acquasanta Terme | AP | 17 | 2916 | 11023 |
Norcia | PG | 18 | 4957 | 15980 |
Capitignano | AQ | 18 | 665 | 16645 |
Cascia | PG | 19 | 3217 | 19862 |
Montegallo | AP | 20 | 523 | 20385 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.5 | 1987-05-02 08:40:34 |
42.678 | 13.243 | 5 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 46089 |
Field | Value |
---|---|
Time (UTC) | 1987-05-02 08:40:34 ± 0.538 |
Latitude | 42.6780 ± 0.0271 |
Longitude | 13.2430 ± 0.0499 |
Depth (km) | 5 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 46089 |
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) | 5066.6 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 171 |
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) | 1 |
Epicentral distance of station closest to the epicenter (degree) | 0.00308 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00947 |
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 | 2.5 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | Md |
Reference to an origin | 46089 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:45:19 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.ASS.Z. | 1987-05-02T08:40:57.00 | 10.0 | undecidable | manual | SG | 311 | 0.5772 | 1.15 | 0.4 | |
--.SDI.Z. | 1987-05-02T08:40:57.00 | 10.0 | undecidable | manual | PG | 156 | 1.0545 | 1.37 | 0.8 | |
--.MNS.Z. | 1987-05-02T08:40:54.00 | 10.0 | undecidable | manual | SG | 234 | 0.4995 | 0.44 | 0.8 | |
--.ARV.Z. | 1987-05-02T08:40:50.00 | 10.0 | undecidable | manual | PG | 345 | 0.8436 | -1.8 | 0.7 | |
--.ASS.Z. | 1987-05-02T08:40:47.50 | 10.0 | undecidable | manual | PG | 311 | 0.5772 | 0.71 | 1.5 | |
--.AQU.Z. | 1987-05-02T08:40:47.00 | 10.0 | undecidable | manual | SG | 160 | 0.3441 | -0.79 | 0.9 | |
--.MNS.Z. | 1987-05-02T08:40:44.00 | 10.0 | undecidable | manual | PG | 234 | 0.4995 | -1.47 | 1 | |
--.AQU.Z. | 1987-05-02T08:40:42.50 | 10.0 | undecidable | manual | PG | 160 | 0.3441 | 0.37 | 2 |