A magnitude Md 2.0 earthquake occured in region: 6 km SE Todi (PG), on
and geographic coordinates (lat, lon) 42.7400, 12.4530 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 |
---|---|---|---|---|
Todi | PG | 6 | 16851 | 16851 |
Massa Martana | PG | 7 | 3770 | 20621 |
Acquasparta | TR | 9 | 4778 | 25399 |
Avigliano Umbro | TR | 10 | 2558 | 27957 |
Montecastrilli | TR | 10 | 5022 | 32979 |
Monte Castello di Vibio | PG | 14 | 1567 | 34546 |
Giano dell'Umbria | PG | 15 | 3846 | 38392 |
Fratta Todina | PG | 15 | 1839 | 40231 |
Montecchio | TR | 16 | 1676 | 41907 |
San Gemini | TR | 16 | 5018 | 46925 |
Collazzone | PG | 17 | 3473 | 50398 |
Guardea | TR | 18 | 1836 | 52234 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.0
ML-VAX 1.6 |
1987-08-07 09:05:19 |
42.74 | 12.453 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 53489 |
Field | Value |
---|---|
Time (UTC) | 1987-08-07 09:05:19 ± 0.153 |
Latitude | 42.7400 ± 0.0036 |
Longitude | 12.4530 ± 0.0167 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 53489 |
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) | 1422.4 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 229 |
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) | 0.1 |
Epicentral distance of station closest to the epicenter (degree) | 0.00316 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00607 |
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 | 2.0 |
Uncertainty | |
Num. used stations | 2 |
Type of magnitude | Md |
Reference to an origin | 53489 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:51:35 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 53489 |
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 |
---|---|---|---|---|---|---|---|---|---|---|
--.CM8.Z. | 1987-08-07T09:05:43.50 | 10.0 | undecidable | manual | SG | 47 | 0.6771 | 0.04 | 1 | |
--.MNS.Z. | 1987-08-07T09:05:34.42 | 10.0 | undecidable | manual | SG | 154 | 0.3885 | 0.15 | 0.5 | |
--.CM8.Z. | 1987-08-07T09:05:33.80 | 10.0 | undecidable | manual | PG? | 47 | 0.6771 | -0.35 | 0 | |
--.ASS.Z. | 1987-08-07T09:05:33.50 | 10.0 | undecidable | manual | SG | 24 | 0.3552 | 0.06 | 0.8 | |
--.MNS.Z. | 1987-08-07T09:05:28.70 | 10.0 | undecidable | manual | PG | 154 | 0.3885 | -0.05 | 2 | |
--.ASS.Z. | 1987-08-07T09:05:27.47 | 10.0 | undecidable | manual | PG | 24 | 0.3552 | 0.08 | 1.8 |