A magnitude Md 2.3 earthquake occured in region: 7 km E Massa Martana (PG), on
and geographic coordinates (lat, lon) 42.7550, 12.6060 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 | 7 | 3770 | 3770 |
Acquasparta | TR | 9 | 4778 | 8548 |
Giano dell'Umbria | PG | 9 | 3846 | 12394 |
Castel Ritaldi | PG | 9 | 3278 | 15672 |
Spoleto | PG | 11 | 38218 | 53890 |
Montecastrilli | TR | 15 | 5022 | 58912 |
Campello sul Clitunno | PG | 16 | 2442 | 61354 |
Montefalco | PG | 16 | 5679 | 67033 |
San Gemini | TR | 16 | 5018 | 72051 |
Todi | PG | 17 | 16851 | 88902 |
Gualdo Cattaneo | PG | 18 | 6155 | 95057 |
Trevi | PG | 18 | 8469 | 103526 |
Avigliano Umbro | TR | 18 | 2558 | 106084 |
Sant'Anatolia di Narco | PG | 19 | 564 | 106648 |
Scheggino | PG | 19 | 461 | 107109 |
Bevagna | PG | 20 | 5081 | 112190 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.3 | 1986-02-18 20:34:03 |
42.755 | 12.606 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 22879 |
Field | Value |
---|---|
Time (UTC) | 1986-02-18 20:34:03 ± 0.257 |
Latitude | 42.7550 ± 0.0114 |
Longitude | 12.6060 ± 0.0240 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 22879 |
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) | 2333.9 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 159 |
Number of associated phases, regardless of their use for origin computation | 9 |
Number of defining phases | 9 |
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) | 0.00275 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00882 |
Number of stations at which the event was observed | 5 |
Number of stations from which data was used for origin computation | 5 |
Field | Value |
---|---|
Value | 2.3 |
Uncertainty | |
Num. used stations | 2 |
Type of magnitude | Md |
Reference to an origin | 22879 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:25:00 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.CRE.Z. | 1986-02-18T20:34:37.00 | 10.0 | undecidable | manual | SG | 331 | 0.9768 | 0.33 | 0.6 | |
--.ALP.Z. | 1986-02-18T20:34:28.20 | 10.0 | undecidable | manual | SG | 87 | 0.6993 | 0.55 | 0.8 | |
--.CRE.Z. | 1986-02-18T20:34:23.50 | 10.0 | undecidable | manual | PG | 331 | 0.9768 | 1.02 | 0.5 | |
--.ARV.Z. | 1986-02-18T20:34:18.50 | 10.0 | undecidable | manual | PG | 18 | 0.777 | -0.2 | 1.8 | |
--.ALP.Z. | 1986-02-18T20:34:17.49 | 10.0 | undecidable | manual | PG | 87 | 0.6993 | 0.23 | 1.9 | |
--.MNS.Z. | 1986-02-18T20:34:17.50 | 10.0 | undecidable | manual | SG | 171 | 0.3663 | 0.48 | 0.6 | |
--.ASS.Z. | 1986-02-18T20:34:14.50 | 10.0 | undecidable | manual | SG | 6 | 0.3108 | -0.41 | 0.7 | |
--.MNS.Z. | 1986-02-18T20:34:10.50 | 10.0 | undecidable | manual | PG | 171 | 0.3663 | -0.63 | 1.3 | |
--.ASS.Z. | 1986-02-18T20:34:09.00 | 10.0 | undecidable | manual | PG | 6 | 0.3108 | -0.91 | 0.8 |