A magnitude Md 2.2 earthquake occured in region: 4 km W Massa Martana (PG), on
and geographic coordinates (lat, lon) 42.7870, 12.4800 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 | 4 | 3770 | 3770 |
Todi | PG | 6 | 16851 | 20621 |
Giano dell'Umbria | PG | 10 | 3846 | 24467 |
Acquasparta | TR | 12 | 4778 | 29245 |
Monte Castello di Vibio | PG | 12 | 1567 | 30812 |
Fratta Todina | PG | 12 | 1839 | 32651 |
Collazzone | PG | 13 | 3473 | 36124 |
Avigliano Umbro | TR | 15 | 2558 | 38682 |
Gualdo Cattaneo | PG | 15 | 6155 | 44837 |
Montecastrilli | TR | 15 | 5022 | 49859 |
Castel Ritaldi | PG | 16 | 3278 | 53137 |
Marsciano | PG | 18 | 18902 | 72039 |
Montefalco | PG | 19 | 5679 | 77718 |
San Venanzo | TR | 20 | 2218 | 79936 |
Bevagna | PG | 20 | 5081 | 85017 |
San Gemini | TR | 20 | 5018 | 90035 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.2
ML-VAX 1.7 |
1988-08-20 05:33:20 |
42.787 | 12.48 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 75869 |
Field | Value |
---|---|
Time (UTC) | 1988-08-20 05:33:20 ± 0.087 |
Latitude | 42.7870 ± 0.0022 |
Longitude | 12.4800 ± 0.0095 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 75869 |
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) | 818.1 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 224 |
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 |
Epicentral distance of station closest to the epicenter (degree) | 0.00267 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00567 |
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 | 2.2 |
Uncertainty | |
Num. used stations | 1 |
Type of magnitude | Md |
Reference to an origin | 75869 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 18:11:31 |
Field | Value |
---|---|
Value | 1.7 |
Uncertainty | |
Num. used stations | 1 |
Type of magnitude | ML |
Reference to an origin | 75869 |
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. | 1988-08-20T05:33:42.99 | 10.0 | undecidable | manual | SG | 49 | 0.6327 | 0.02 | 0.9 | |
--.MNS.Z. | 1988-08-20T05:33:36.38 | 10.0 | undecidable | manual | SG | 159 | 0.4218 | -0.02 | 0.7 | |
--.CM8.Z. | 1988-08-20T05:33:33.62 | 10.0 | undecidable | manual | PG | 49 | 0.6327 | 0.05 | 1.3 | |
--.ASS.Z. | 1988-08-20T05:33:32.15 | 10.0 | undecidable | manual | SG | 24 | 0.2997 | -0.2 | 0.1 | |
--.MNS.Z. | 1988-08-20T05:33:29.75 | 10.0 | undecidable | manual | PG | 159 | 0.4218 | -0.03 | 1.7 | |
--.ASS.Z. | 1988-08-20T05:33:27.50 | 10.0 | undecidable | manual | PG | 24 | 0.2997 | 0.06 | 1.4 |