A magnitude Md 2.3 earthquake occured in region: 9 km NE Perugia (PG), on
and geographic coordinates (lat, lon) 43.1680, 12.4690 at 5 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 |
---|---|---|---|---|
Perugia | PG | 9 | 166134 | 166134 |
Valfabbrica | PG | 11 | 3389 | 169523 |
Bastia Umbra | PG | 13 | 21874 | 191397 |
Corciano | PG | 15 | 21332 | 212729 |
Torgiano | PG | 16 | 6725 | 219454 |
Assisi | PG | 16 | 28299 | 247753 |
Bettona | PG | 17 | 4367 | 252120 |
Umbertide | PG | 19 | 16681 | 268801 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.3
ML-VAX 1.6 |
1997-10-13 15:56:18 |
43.168 | 12.469 | 5 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 297909 |
Field | Value |
---|---|
Time (UTC) | 1997-10-13 15:56:18 ± 0.361 |
Latitude | 43.1680 ± 0.0090 |
Longitude | 12.4690 ± 0.0324 |
Depth (km) | 5 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 297909 |
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) | 2814.4 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 214 |
Number of associated phases, regardless of their use for origin computation | 7 |
Number of defining phases | 7 |
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) | 0.00146 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00712 |
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 | 2.3 |
Uncertainty | |
Num. used stations | 2 |
Type of magnitude | Md |
Reference to an origin | 297909 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 21:40:06 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 297909 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2015-04-28 13:07:13 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.FB9.Z. | 1997-10-13T15:56:40.22 | 10.0 | undecidable | manual | SG | 23 | 0.5661 | 0.26 | 0.5 | |
--.ARV.Z. | 1997-10-13T15:56:36.36 | 10.0 | undecidable | manual | SG | 46 | 0.4773 | -0.66 | 0.1 | |
--.MNS.Z. | 1997-10-13T15:56:34.85 | 10.0 | undecidable | manual | PG | 168 | 0.7881 | -0.41 | 0.7 | |
--.FB9.Z. | 1997-10-13T15:56:31.34 | 10.0 | undecidable | manual | PG | 23 | 0.5661 | 0.32 | 1.1 | |
--.ARV.Z. | 1997-10-13T15:56:29.40 | 10.0 | undecidable | manual | PG | 46 | 0.4773 | -0.28 | 1.4 | |
--.ASS.Z. | 1997-10-13T15:56:25.36 | 10.0 | undecidable | manual | SG | 128 | 0.1665 | -0.23 | 0.6 | |
--.ASS.Z. | 1997-10-13T15:56:23.40 | 10.0 | positive | manual | PG | 128 | 0.1665 | 0.31 | 2.6 |