A magnitude Md 2.3 earthquake occured in region: 5 km W Montemonaco (AP), on
and geographic coordinates (lat, lon) 42.9050, 13.2690 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 |
---|---|---|---|---|
Montemonaco | AP | 5 | 604 | 604 |
Montefortino | FM | 7 | 1178 | 1782 |
Montegallo | AP | 9 | 523 | 2305 |
Castelsantangelo sul Nera | MC | 9 | 281 | 2586 |
Bolognola | MC | 11 | 142 | 2728 |
Amandola | FM | 11 | 3629 | 6357 |
Ussita | MC | 12 | 444 | 6801 |
Comunanza | AP | 13 | 3166 | 9967 |
Arquata del Tronto | AP | 15 | 1178 | 11145 |
Visso | MC | 15 | 1107 | 12252 |
Sarnano | MC | 15 | 3264 | 15516 |
Palmiano | AP | 16 | 196 | 15712 |
Acquacanina | MC | 16 | 121 | 15833 |
Fiastra | MC | 17 | 559 | 16392 |
Roccafluvione | AP | 18 | 2010 | 18402 |
Montefalcone Appennino | FM | 18 | 424 | 18826 |
Smerillo | FM | 18 | 365 | 19191 |
Venarotta | AP | 19 | 2066 | 21257 |
Norcia | PG | 19 | 4957 | 26214 |
Preci | PG | 19 | 724 | 26938 |
Acquasanta Terme | AP | 19 | 2916 | 29854 |
Gualdo | MC | 19 | 815 | 30669 |
Force | AP | 19 | 1354 | 32023 |
Monte San Martino | MC | 20 | 765 | 32788 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.3
ML-VAX 1.6 |
1987-09-20 21:55:17 |
42.905 | 13.269 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 55769 |
Field | Value |
---|---|
Time (UTC) | 1987-09-20 21:55:17 ± 0.198 |
Latitude | 42.9050 ± 0.0160 |
Longitude | 13.2690 ± 0.0198 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 55769 |
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) | 2403.5 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 169 |
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) | 0.4 |
Epicentral distance of station closest to the epicenter (degree) | 0.00219 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00575 |
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 | 1 |
Type of magnitude | Md |
Reference to an origin | 55769 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:53:38 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | |
Num. used stations | 1 |
Type of magnitude | ML |
Reference to an origin | 55769 |
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. | 1987-09-20T21:55:41.00 | 10.0 | undecidable | manual | SG | 338 | 0.6327 | 0.96 | 0.1 | |
--.ASS.Z. | 1987-09-20T21:55:35.20 | 10.0 | undecidable | manual | SG | 289 | 0.4773 | 0.35 | 0.5 | |
--.ARV.Z. | 1987-09-20T21:55:31.00 | 10.0 | undecidable | manual | PG | 338 | 0.6327 | 0.45 | 0.9 | |
--.CM8.Z. | 1987-09-20T21:55:29.31 | 10.0 | undecidable | manual | SG | 342 | 0.2997 | 0.04 | 1.1 | |
--.ASS.Z. | 1987-09-20T21:55:27.47 | 10.0 | undecidable | manual | PG | 289 | 0.4773 | -0.09 | 1.6 | |
--.ALP.Z. | 1987-09-20T21:55:27.95 | 10.0 | undecidable | manual | SG | 119 | 0.2442 | 0.38 | 0.7 | |
--.ALP.Z. | 1987-09-20T21:55:23.16 | 10.0 | undecidable | manual | PG | 119 | 0.2442 | -0.2 | 1.6 | |
--.CM8.Z. | 1987-09-20T21:55:23.74 | 10.0 | undecidable | manual | PG | 342 | 0.2997 | -0.59 | 1.5 |