A magnitude Md 2.3 earthquake occured in region: 2 km SW Collazzone (PG), on
and geographic coordinates (lat, lon) 42.8850, 12.4260 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 |
---|---|---|---|---|
Collazzone | PG | 2 | 3473 | 3473 |
Fratta Todina | PG | 6 | 1839 | 5312 |
Marsciano | PG | 8 | 18902 | 24214 |
Monte Castello di Vibio | PG | 8 | 1567 | 25781 |
Deruta | PG | 11 | 9669 | 35450 |
Gualdo Cattaneo | PG | 11 | 6155 | 41605 |
Todi | PG | 11 | 16851 | 58456 |
San Venanzo | TR | 13 | 2218 | 60674 |
Giano dell'Umbria | PG | 14 | 3846 | 64520 |
Massa Martana | PG | 15 | 3770 | 68290 |
Bettona | PG | 15 | 4367 | 72657 |
Torgiano | PG | 16 | 6725 | 79382 |
Bevagna | PG | 16 | 5081 | 84463 |
Cannara | PG | 18 | 4305 | 88768 |
Montefalco | PG | 19 | 5679 | 94447 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.3 | 1986-04-08 13:22:42 |
42.885 | 12.426 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 25519 |
Field | Value |
---|---|
Time (UTC) | 1986-04-08 13:22:42 ± 0.69 |
Latitude | 42.8850 ± 0.0298 |
Longitude | 12.4260 ± 0.0582 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 25519 |
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) | 5783.3 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 194 |
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) | 0.5 |
Epicentral distance of station closest to the epicenter (degree) | 0.00194 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00478 |
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 | 1 |
Type of magnitude | Md |
Reference to an origin | 25519 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:27:17 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.MNS.Z. | 1986-04-08T13:23:02.50 | 10.0 | undecidable | manual | SG | 159 | 0.5328 | 1.39 | 0.1 | |
--.MNS.Z. | 1986-04-08T13:22:52.00 | 10.0 | undecidable | manual | PG | 159 | 0.5328 | -1.06 | 0.4 | |
--.ASS.Z. | 1986-04-08T13:22:51.00 | 10.0 | undecidable | manual | SG | 42 | 0.2331 | -0.76 | 0.6 | |
--.PRG.Z. | 1986-04-08T13:22:50.50 | 10.0 | undecidable | manual | SG | 354 | 0.2109 | -0.45 | 0.5 | |
--.ASS.Z. | 1986-04-08T13:22:48.00 | 10.0 | negative | manual | PG | 42 | 0.2331 | 0.34 | 2.9 | |
--.PRG.Z. | 1986-04-08T13:22:47.50 | 10.0 | undecidable | manual | PG | 354 | 0.2109 | 0.31 | 1.5 |