A magnitude Md 2.3 earthquake occured in region: 8 km NE Valfabbrica (PG), on
and geographic coordinates (lat, lon) 43.2250, 12.6440 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 |
---|---|---|---|---|
Valfabbrica | PG | 8 | 3389 | 3389 |
Gualdo Tadino | PG | 12 | 15208 | 18597 |
Fossato di Vico | PG | 12 | 2840 | 21437 |
Sigillo | PG | 14 | 2404 | 23841 |
Gubbio | PG | 15 | 32216 | 56057 |
Costacciaro | PG | 16 | 1216 | 57273 |
Assisi | PG | 17 | 28299 | 85572 |
Nocera Umbra | PG | 17 | 5839 | 91411 |
Bastia Umbra | PG | 19 | 21874 | 113285 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.3 | 1987-09-23 13:48:29 |
43.225 | 12.644 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 55969 |
Field | Value |
---|---|
Time (UTC) | 1987-09-23 13:48:29 ± 0.518 |
Latitude | 43.2250 ± 0.0355 |
Longitude | 12.6440 ± 0.0324 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 55969 |
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) | 4736.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 218 |
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) | 0.5 |
Epicentral distance of station closest to the epicenter (degree) | 0.00146 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00324 |
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 | 55969 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:53:48 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.CM8.Z. | 1987-09-23T13:48:42.80 | 10.0 | undecidable | manual | SG | 94 | 0.3552 | -0.94 | 0.2 | |
--.CM8.Z. | 1987-09-23T13:48:37.52 | 10.0 | undecidable | manual | PG | 94 | 0.3552 | 0.27 | 2.5 | |
--.ASS.Z. | 1987-09-23T13:48:36.00 | 10.0 | undecidable | manual | SG | 177 | 0.1665 | -0.51 | 0.4 | |
--.PRG.Z. | 1987-09-23T13:48:34.00 | 10.0 | undecidable | manual | PG | 235 | 0.2109 | -0.52 | 1.1 | |
--.ASS.Z. | 1987-09-23T13:48:34.20 | 10.0 | undecidable | manual | PG | 177 | 0.1665 | 0.71 | 0.8 |