A magnitude Md 2.1 earthquake occured in region: 6 km SE Apecchio (PU), on
and geographic coordinates (lat, lon) 43.5040, 12.4460 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 |
---|---|---|---|---|
Apecchio | PU | 7 | 1882 | 1882 |
Pietralunga | PG | 7 | 2111 | 3993 |
Piobbico | PU | 11 | 2029 | 6022 |
Cantiano | PU | 15 | 2245 | 8267 |
Cagli | PU | 17 | 8731 | 16998 |
CittĂ di Castello | PG | 17 | 39913 | 56911 |
Sant'Angelo in Vado | PU | 18 | 4133 | 61044 |
Montone | PG | 18 | 1680 | 62724 |
Mercatello sul Metauro | PU | 18 | 1378 | 64102 |
Urbania | PU | 20 | 7099 | 71201 |
Gubbio | PG | 20 | 32216 | 103417 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.1 | 1987-12-07 20:47:04 |
43.504 | 12.446 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 59419 |
Field | Value |
---|---|
Time (UTC) | 1987-12-07 20:47:04 ± 0.26 |
Latitude | 43.5040 ± 0.0291 |
Longitude | 12.4460 ± 0.0208 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 59419 |
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) | 3643.4 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 162 |
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) | 0.00324 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00534 |
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 | 2.1 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | Md |
Reference to an origin | 59419 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:56:46 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.CM8.Z. | 1987-12-07T20:47:26.30 | 10.0 | undecidable | manual | SG | 121 | 0.5883 | 0.46 | 0.6 | |
--.ASS.Z. | 1987-12-07T20:47:20.34 | 10.0 | undecidable | manual | SG | 161 | 0.4551 | -1.13 | 0.1 | |
--.ARV.Z. | 1987-12-07T20:47:18.65 | 10.0 | undecidable | manual | SG | 90 | 0.3552 | 0.55 | 0.4 | |
--.CRE.Z. | 1987-12-07T20:47:17.91 | 10.0 | undecidable | manual | SG | 288 | 0.3663 | -0.7 | 0.3 | |
--.CM8.Z. | 1987-12-07T20:47:16.46 | 10.0 | undecidable | manual | PG | 121 | 0.5883 | -0.24 | 1.4 | |
--.ASS.Z. | 1987-12-07T20:47:14.97 | 10.0 | undecidable | manual | PG | 161 | 0.4551 | 0.63 | 0.8 | |
--.CRE.Z. | 1987-12-07T20:47:13.11 | 10.0 | undecidable | manual | PG | 288 | 0.3663 | 0.42 | 1.3 | |
--.ARV.Z. | 1987-12-07T20:47:12.90 | 10.0 | positive | manual | PG | 90 | 0.3552 | -0.3 | 3.1 |