A magnitude Md 2.0 earthquake occured in region: 3 km S Massa Martana (PG), on
and geographic coordinates (lat, lon) 42.7500, 12.5190 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 |
---|---|---|---|---|
Massa Martana | PG | 3 | 3770 | 3770 |
Acquasparta | TR | 7 | 4778 | 8548 |
Todi | PG | 10 | 16851 | 25399 |
Giano dell'Umbria | PG | 11 | 3846 | 29245 |
Montecastrilli | TR | 11 | 5022 | 34267 |
Avigliano Umbro | TR | 13 | 2558 | 36825 |
Castel Ritaldi | PG | 15 | 3278 | 40103 |
San Gemini | TR | 15 | 5018 | 45121 |
Monte Castello di Vibio | PG | 17 | 1567 | 46688 |
Fratta Todina | PG | 17 | 1839 | 48527 |
Collazzone | PG | 17 | 3473 | 52000 |
Spoleto | PG | 18 | 38218 | 90218 |
Gualdo Cattaneo | PG | 18 | 6155 | 96373 |
Montefalco | PG | 20 | 5679 | 102052 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.0 | 1998-03-18 01:38:04 |
42.75 | 12.519 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 325419 |
Field | Value |
---|---|
Time (UTC) | 1998-03-18 01:38:04 ± 0.263 |
Latitude | 42.7500 ± 0.0067 |
Longitude | 12.5190 ± 0.0329 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 325419 |
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) | 2786.8 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 215 |
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) | 0.00291 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00526 |
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 | 2.0 |
Uncertainty | |
Num. used stations | 2 |
Type of magnitude | Md |
Reference to an origin | 325419 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 22:05:05 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.SNTG.Z. | 1998-03-18T01:38:24.57 | 10.0 | undecidable | manual | SG | 31 | 0.5883 | -0.62 | 0.1 | |
--.NRCA.Z. | 1998-03-18T01:38:21.20 | 10.0 | undecidable | manual | SG | 79 | 0.444 | 0.57 | 0.1 | |
--.MNS.Z. | 1998-03-18T01:38:18.68 | 10.0 | undecidable | manual | SG | 161 | 0.3774 | 0.15 | 0.7 | |
--.ASS.Z. | 1998-03-18T01:38:17.20 | 10.0 | undecidable | manual | SG | 17 | 0.3219 | 0.31 | 0.5 | |
--.SNTG.Z. | 1998-03-18T01:38:16.29 | 10.0 | undecidable | manual | PG | 31 | 0.5883 | -0.07 | 1.7 | |
--.NRCA.Z. | 1998-03-18T01:38:13.33 | 10.0 | undecidable | manual | PG | 79 | 0.444 | -0.29 | 1.3 | |
--.MNS.Z. | 1998-03-18T01:38:12.46 | 10.0 | undecidable | manual | PG | 161 | 0.3774 | -0.06 | 2.1 | |
--.ASS.Z. | 1998-03-18T01:38:11.72 | 10.0 | undecidable | manual | PG | 17 | 0.3219 | 0.25 | 1.5 |