A magnitude Md 2.3 earthquake occured in region: 4 km S Montefalco (PG), on
and geographic coordinates (lat, lon) 42.8590, 12.6550 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 |
---|---|---|---|---|
Montefalco | PG | 4 | 5679 | 5679 |
Castel Ritaldi | PG | 4 | 3278 | 8957 |
Giano dell'Umbria | PG | 7 | 3846 | 12803 |
Trevi | PG | 8 | 8469 | 21272 |
Bevagna | PG | 9 | 5081 | 26353 |
Gualdo Cattaneo | PG | 10 | 6155 | 32508 |
Campello sul Clitunno | PG | 11 | 2442 | 34950 |
Foligno | PG | 12 | 57155 | 92105 |
Massa Martana | PG | 14 | 3770 | 95875 |
Spello | PG | 15 | 8645 | 104520 |
Spoleto | PG | 15 | 38218 | 142738 |
Cannara | PG | 16 | 4305 | 147043 |
Collazzone | PG | 18 | 3473 | 150516 |
Vallo di Nera | PG | 20 | 364 | 150880 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.3 | 1987-06-13 19:47:07 |
42.859 | 12.655 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 48969 |
Field | Value |
---|---|
Time (UTC) | 1987-06-13 19:47:07 ± 0.245 |
Latitude | 42.8590 ± 0.0102 |
Longitude | 12.6550 ± 0.0698 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 48969 |
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) | 5803.5 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 181 |
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) | 0.00178 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00599 |
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 | 2.3 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | Md |
Reference to an origin | 48969 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:47:48 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.ARV.Z. | 1987-06-13T19:47:31.50 | 10.0 | undecidable | manual | SG | 18 | 0.666 | 0.34 | 0.4 | |
--.MNS.Z. | 1987-06-13T19:47:24.00 | 10.0 | undecidable | manual | SG | 177 | 0.4662 | -0.78 | 0.1 | |
--.ARV.Z. | 1987-06-13T19:47:21.00 | 10.0 | undecidable | manual | PG | 18 | 0.666 | -0.23 | 1.4 | |
--.MNS.Z. | 1987-06-13T19:47:18.00 | 10.0 | undecidable | manual | PG | 177 | 0.4662 | 0.46 | 0.9 | |
--.ASS.Z. | 1987-06-13T19:47:16.00 | 10.0 | undecidable | manual | SG | 359 | 0.1998 | -0.08 | 1.2 | |
--.ASS.Z. | 1987-06-13T19:47:12.50 | 10.0 | undecidable | manual | PG | 359 | 0.1998 | -0.02 | 2.1 |