A magnitude Md 2.4 earthquake occured in region: 4 km SW Valtopina (PG), on
and geographic coordinates (lat, lon) 43.0390, 12.7090 at 16 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 |
---|---|---|---|---|
Valtopina | PG | 4 | 1398 | 1398 |
Spello | PG | 6 | 8645 | 10043 |
Assisi | PG | 8 | 28299 | 38342 |
Foligno | PG | 9 | 57155 | 95497 |
Nocera Umbra | PG | 11 | 5839 | 101336 |
Cannara | PG | 11 | 4305 | 105641 |
Bastia Umbra | PG | 13 | 21874 | 127515 |
Bevagna | PG | 14 | 5081 | 132596 |
Valfabbrica | PG | 16 | 3389 | 135985 |
Montefalco | PG | 17 | 5679 | 141664 |
Trevi | PG | 18 | 8469 | 150133 |
Bettona | PG | 18 | 4367 | 154500 |
Gualdo Cattaneo | PG | 19 | 6155 | 160655 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.4 | 1989-04-18 01:22:28 |
43.039 | 12.709 | 16 | 2013-07-15 08:40:51 |
Bollettino Sismico Italiano INGV | 90079 |
Field | Value |
---|---|
Time (UTC) | 1989-04-18 01:22:28 ± 0.304 |
Latitude | 43.0390 ± 0.0118 |
Longitude | 12.7090 ± 0.0228 |
Depth (km) | 16 ± 3 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 90079 |
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) | 2272.8 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 118 |
Number of associated phases, regardless of their use for origin computation | 8 |
Number of defining phases | 8 |
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) | 0.00040 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00607 |
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 | 2.4 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | Md |
Reference to an origin | 90079 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 18:24:31 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.ALP.Z. | 1989-04-18T01:22:52.17 | 10.0 | undecidable | manual | SG | 112 | 0.6771 | 0.17 | 0.6 | |
--.MNS.Z. | 1989-04-18T01:22:50.35 | 10.0 | undecidable | manual | SG | 181 | 0.6438 | -0.82 | 0 | |
--.ARV.Z. | 1989-04-18T01:22:46.35 | 10.0 | undecidable | manual | SG | 20 | 0.4884 | 0.35 | 0.3 | |
--.ALP.Z. | 1989-04-18T01:22:41.82 | 10.0 | positive | manual | PG | 112 | 0.6771 | -0.12 | 2.1 | |
--.MNS.Z. | 1989-04-18T01:22:41.76 | 10.0 | negative | manual | PG | 181 | 0.6438 | 0.3 | 1.4 | |
--.ARV.Z. | 1989-04-18T01:22:38.23 | 10.0 | undecidable | manual | PG | 20 | 0.4884 | -0.24 | 1 | |
--.ASS.Z. | 1989-04-18T01:22:34.20 | 10.0 | undecidable | manual | SG | 299 | 0.0444 | 0.36 | 0.3 | |
--.ASS.Z. | 1989-04-18T01:22:31.20 | 10.0 | negative | manual | PG | 299 | 0.0444 | -0.15 | 2.5 |