A magnitude Md 2.1 earthquake occured in region: 1 km W Sassoferrato (AN), on
and geographic coordinates (lat, lon) 43.4390, 12.8490 at 19 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 |
---|---|---|---|---|
Sassoferrato | AN | 1 | 7285 | 7285 |
Genga | AN | 7 | 1797 | 9082 |
Serra Sant'Abbondio | PU | 9 | 1027 | 10109 |
Arcevia | AN | 10 | 4612 | 14721 |
Fabriano | AN | 12 | 31480 | 46201 |
Frontone | PU | 12 | 1300 | 47501 |
Serra San Quirico | AN | 14 | 2850 | 50351 |
Pergola | PU | 14 | 6333 | 56684 |
Costacciaro | PG | 14 | 1216 | 57900 |
Sigillo | PG | 15 | 2404 | 60304 |
Scheggia e Pascelupo | PG | 15 | 1393 | 61697 |
Mergo | AN | 16 | 1037 | 62734 |
Cerreto d'Esi | AN | 17 | 3817 | 66551 |
Fossato di Vico | PG | 17 | 2840 | 69391 |
Cantiano | PU | 18 | 2245 | 71636 |
Rosora | AN | 19 | 1985 | 73621 |
Serra de' Conti | AN | 19 | 3746 | 77367 |
Castelplanio | AN | 20 | 3540 | 80907 |
Poggio San Vicino | MC | 20 | 246 | 81153 |
San Lorenzo in Campo | PU | 20 | 3414 | 84567 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.1 | 1987-04-17 12:56:24 |
43.439 | 12.849 | 19 | 2013-07-15 08:40:51 |
Bollettino Sismico Italiano INGV | 45059 |
Field | Value |
---|---|
Time (UTC) | 1987-04-17 12:56:24 ± 0.354 |
Latitude | 43.4390 ± 0.0111 |
Longitude | 12.8490 ± 0.0258 |
Depth (km) | 19 ± 2 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 45059 |
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) | 2422.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 270 |
Number of associated phases, regardless of their use for origin computation | 5 |
Number of defining phases | 5 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.1 |
Epicentral distance of station closest to the epicenter (degree) | 0.00081 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00494 |
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 | 45059 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:44:25 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.AM8.Z. | 1987-04-17T12:56:44.50 | 10.0 | undecidable | manual | SG | 78 | 0.5439 | 0.23 | 0.1 | |
--.AM8.Z. | 1987-04-17T12:56:35.63 | 10.0 | undecidable | manual | PG | 78 | 0.5439 | -0.16 | 0.5 | |
--.CM8.Z. | 1987-04-17T12:56:31.65 | 10.0 | undecidable | manual | PG | 138 | 0.3219 | 0 | 1.5 | |
--.ARV.Z. | 1987-04-17T12:56:31.00 | 10.0 | undecidable | manual | SG | 49 | 0.0888 | -0.16 | 0.4 | |
--.ARV.Z. | 1987-04-17T12:56:28.30 | 10.0 | undecidable | manual | PG | 49 | 0.0888 | 0.08 | 2.5 |