A magnitude Md 2.5 earthquake occured in region: 4 km NW Acquasanta Terme (AP), on
and geographic coordinates (lat, lon) 42.7940, 13.3690 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 |
---|---|---|---|---|
Acquasanta Terme | AP | 4 | 2916 | 2916 |
Arquata del Tronto | AP | 6 | 1178 | 4094 |
Montegallo | AP | 6 | 523 | 4617 |
Roccafluvione | AP | 12 | 2010 | 6627 |
Montemonaco | AP | 12 | 604 | 7231 |
Valle Castellana | TE | 12 | 977 | 8208 |
Palmiano | AP | 14 | 196 | 8404 |
Venarotta | AP | 14 | 2066 | 10470 |
Accumoli | RI | 15 | 667 | 11137 |
Montefortino | FM | 17 | 1178 | 12315 |
Rocca Santa Maria | TE | 18 | 537 | 12852 |
Ascoli Piceno | AP | 18 | 49407 | 62259 |
Comunanza | AP | 19 | 3166 | 65425 |
Amatrice | RI | 19 | 2657 | 68082 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.5
ML-VAX 2.0 |
1987-08-02 22:40:00 |
42.794 | 13.369 | 5 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 53269 |
Field | Value |
---|---|
Time (UTC) | 1987-08-02 22:40:00 ± 0.311 |
Latitude | 42.7940 ± 0.0146 |
Longitude | 13.3690 ± 0.0306 |
Depth (km) | 5 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 53269 |
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) | 2976.5 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 186 |
Number of associated phases, regardless of their use for origin computation | 10 |
Number of defining phases | 10 |
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) | 0.00389 |
Epicentral distance of station farthest from the epicenter (degree) | 0.01012 |
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 | 5 |
Type of magnitude | Md |
Reference to an origin | 53269 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:51:23 |
Field | Value |
---|---|
Value | 2.0 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | ML |
Reference to an origin | 53269 |
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 |
---|---|---|---|---|---|---|---|---|---|---|
--.SDI.Z. | 1987-08-02T22:40:39.36 | 10.0 | undecidable | manual | SN | 163 | 1.1211 | 0.44 | 0.4 | |
--.ARV.Z. | 1987-08-02T22:40:27.11 | 10.0 | undecidable | manual | SG | 336 | 0.7659 | -0.62 | 0.3 | |
--.MNS.Z. | 1987-08-02T22:40:24.30 | 10.0 | undecidable | manual | SG | 231 | 0.6438 | 0.38 | 0.5 | |
--.SDI.Z. | 1987-08-02T22:40:22.85 | 10.0 | undecidable | manual | PN | 163 | 1.1211 | 0.31 | 1.2 | |
--.ASS.Z. | 1987-08-02T22:40:21.93 | 10.0 | undecidable | manual | SG | 297 | 0.5883 | 0 | 0.7 | |
--.ARV.Z. | 1987-08-02T22:40:16.50 | 10.0 | undecidable | manual | PG | 336 | 0.7659 | -0.03 | 1.7 | |
--.AQU.Z. | 1987-08-02T22:40:15.34 | 10.0 | undecidable | manual | SG | 176 | 0.4329 | -1.82 | 0 | |
--.MNS.Z. | 1987-08-02T22:40:13.82 | 10.0 | undecidable | manual | PG | 231 | 0.6438 | -0.05 | 1.8 | |
--.ASS.Z. | 1987-08-02T22:40:12.82 | 10.0 | undecidable | manual | PG | 297 | 0.5883 | 0.09 | 1.8 | |
--.AQU.Z. | 1987-08-02T22:40:10.28 | 10.0 | undecidable | manual | PG | 176 | 0.4329 | 0.3 | 1.5 |