A magnitude Md 2.5 earthquake occured in region: 5 km W Serravalle di Chienti (MC), on
and geographic coordinates (lat, lon) 43.0650, 12.8960 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 |
---|---|---|---|---|
Serravalle di Chienti | MC | 5 | 1070 | 1070 |
Nocera Umbra | PG | 10 | 5839 | 6909 |
Sefro | MC | 10 | 422 | 7331 |
Valtopina | PG | 11 | 1398 | 8729 |
Monte Cavallo | MC | 12 | 145 | 8874 |
Muccia | MC | 12 | 915 | 9789 |
Pieve Torina | MC | 13 | 1458 | 11247 |
Fiuminata | MC | 14 | 1402 | 12649 |
Pioraco | MC | 15 | 1134 | 13783 |
Pievebovigliana | MC | 15 | 866 | 14649 |
Camerino | MC | 16 | 6974 | 21623 |
Fiordimonte | MC | 16 | 202 | 21825 |
Foligno | PG | 20 | 57155 | 78980 |
Sellano | PG | 20 | 1079 | 80059 |
Spello | PG | 20 | 8645 | 88704 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.5 | 1986-07-31 09:54:31 |
43.065 | 12.896 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 31789 |
Field | Value |
---|---|
Time (UTC) | 1986-07-31 09:54:31 ± 1.125 |
Latitude | 43.0650 ± 0.0516 |
Longitude | 12.8960 ± 0.0754 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 31789 |
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) | 8394.2 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 264 |
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) | 0.3 |
Epicentral distance of station closest to the epicenter (degree) | 0.00154 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00793 |
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 | 2.5 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | Md |
Reference to an origin | 31789 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:32:46 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.CRE.Z. | 1986-07-31T09:54:49.50 | 10.0 | undecidable | manual | PG | 309 | 0.8769 | 1.01 | 0.2 | |
--.ARV.Z. | 1986-07-31T09:54:46.80 | 10.0 | undecidable | manual | SG | 4 | 0.4329 | -0.11 | 0.6 | |
--.ARV.Z. | 1986-07-31T09:54:39.70 | 10.0 | undecidable | manual | PG | 4 | 0.4329 | -0.5 | 0.9 | |
--.ASS.Z. | 1986-07-31T09:54:38.00 | 10.0 | undecidable | manual | SG | 269 | 0.1665 | -0.64 | 0.4 | |
--.ASS.Z. | 1986-07-31T09:54:35.40 | 10.0 | negative | manual | PG | 269 | 0.1665 | -0.02 | 2.9 |