A magnitude Md 2.1 earthquake occured in region: 3 km SE Accumoli (RI), on
and geographic coordinates (lat, lon) 42.6770, 13.2780 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 |
---|---|---|---|---|
Accumoli | RI | 3 | 667 | 667 |
Amatrice | RI | 5 | 2657 | 3324 |
Arquata del Tronto | AP | 11 | 1178 | 4502 |
Cittareale | RI | 12 | 482 | 4984 |
Acquasanta Terme | AP | 15 | 2916 | 7900 |
Campotosto | AQ | 15 | 542 | 8442 |
Montereale | AQ | 17 | 2581 | 11023 |
Capitignano | AQ | 17 | 665 | 11688 |
Montegallo | AP | 19 | 523 | 12211 |
Valle Castellana | TE | 19 | 977 | 13188 |
Cortino | TE | 20 | 656 | 13844 |
Norcia | PG | 20 | 4957 | 18801 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.1 | 1987-11-09 19:18:23 |
42.677 | 13.278 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 58409 |
Field | Value |
---|---|
Time (UTC) | 1987-11-09 19:18:23 ± 0.398 |
Latitude | 42.6770 ± 0.0224 |
Longitude | 13.2780 ± 0.0235 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 58409 |
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) | 3148.5 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 172 |
Number of associated phases, regardless of their use for origin computation | 6 |
Number of defining phases | 6 |
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) | 0.00210 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00469 |
Number of stations at which the event was observed | 3 |
Number of stations from which data was used for origin computation | 3 |
Field | Value |
---|---|
Value | 2.1 |
Uncertainty | |
Num. used stations | 1 |
Type of magnitude | Md |
Reference to an origin | 58409 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:55:54 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.MNS.Z. | 1987-11-09T19:18:43.36 | 10.0 | undecidable | manual | SG | 236 | 0.5217 | 1.2 | 0 | |
--.CM8.Z. | 1987-11-09T19:18:42.11 | 10.0 | undecidable | manual | SG | 349 | 0.5217 | -0.01 | 0.8 | |
--.CM8.Z. | 1987-11-09T19:18:34.19 | 10.0 | undecidable | manual | PG | 349 | 0.5217 | 0.02 | 1.3 | |
--.ALP.Z. | 1987-11-09T19:18:33.13 | 10.0 | undecidable | manual | SG | 64 | 0.2331 | 0.35 | 0.6 | |
--.MNS.Z. | 1987-11-09T19:18:33.60 | 10.0 | undecidable | manual | PG | 236 | 0.5217 | -0.59 | 0.5 | |
--.ALP.Z. | 1987-11-09T19:18:28.70 | 10.0 | undecidable | manual | PG | 64 | 0.2331 | -0.07 | 2.8 |