A magnitude ML 0.9 earthquake occured in region: 3 km N Massa Martana (PG), on
and geographic coordinates (lat, lon) 42.8020, 12.5190 at 10 km depth.
The earthquake was located by: Sala Sismica INGV-Roma.
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 |
Giano dell'Umbria | PG | 6 | 3846 | 7616 |
Todi | PG | 9 | 16851 | 24467 |
Collazzone | PG | 12 | 3473 | 27940 |
Gualdo Cattaneo | PG | 12 | 6155 | 34095 |
Acquasparta | TR | 13 | 4778 | 38873 |
Castel Ritaldi | PG | 13 | 3278 | 42151 |
Fratta Todina | PG | 14 | 1839 | 43990 |
Monte Castello di Vibio | PG | 14 | 1567 | 45557 |
Montefalco | PG | 15 | 5679 | 51236 |
Bevagna | PG | 17 | 5081 | 56317 |
Montecastrilli | TR | 17 | 5022 | 61339 |
Avigliano Umbro | TR | 18 | 2558 | 63897 |
Marsciano | PG | 19 | 18902 | 82799 |
Spoleto | PG | 19 | 38218 | 121017 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2020-07-26 23:07:21 |
42.8017 | 12.5192 | 10 | 2020-07-26 23:13:37 |
Sala Sismica INGV-Roma | 81384811 |
Field | Value |
---|---|
Time (UTC) | 2020-07-26 23:07:21 ± 0.14 |
Latitude | 42.8017 ± 0.0207 |
Longitude | 12.5192 ± 0.0147 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 81384811 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 2470 |
Semi-minor axis of confidence ellipse (meter) | 730 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 23 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 2470.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 150 |
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) | 0.22 |
Epicentral distance of station closest to the epicenter (degree) | 0.03777 |
Epicentral distance of station farthest from the epicenter (degree) | 0.31836 |
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 | 0.9 |
Uncertainty | 0.2 |
Num. used stations | 5 |
Type of magnitude | ML |
Reference to an origin | 81384811 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-07-26 23:13:37 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.GAVE.EHZ. | 2020-07-26T23:07:33.42 | 0.1 | undecidable | manual | S | 112 | 32.8449 | 50 | 0.26 | 100 |
IV.MGAB.HHZ. | 2020-07-26T23:07:33.95 | 1.0 | undecidable | manual | S | 291 | 35.3424 | 50 | 0.14 | 26 |
IV.MGAB.HHZ. | 2020-07-26T23:07:28.80 | 0.6 | negative | manual | P | 291 | 35.3424 | 50 | 0.11 | 51 |
IV.ASSB.HHZ. | 2020-07-26T23:07:28.07 | 1.0 | undecidable | manual | P | 23 | 29.0487 | 50 | 0.35 | 25 |
IV.GAVE.EHZ. | 2020-07-26T23:07:28.32 | 1.0 | undecidable | manual | P | 112 | 32.8449 | 50 | 0.01 | 26 |
IV.ARRO.EHZ. | 2020-07-26T23:07:27.83 | 1.0 | negative | manual | P | 141 | 31.8459 | 50 | -0.32 | 25 |
IV.MOMA.HHZ. | 2020-07-26T23:07:25.04 | 0.3 | undecidable | manual | S | 87 | 4.1958 | 157 | -0.4 | 76 |
IV.MOMA.HHZ. | 2020-07-26T23:07:23.74 | 0.6 | undecidable | manual | P | 87 | 4.1958 | 157 | -0.11 | 54 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.MOMA.HHN. | ML:1.1 | 0.000224 | 0.32 | AML | other | m | 2020-07-26T23:07:25.30 |
IV.MOMA.HHE. | ML:1.3 | 0.00034899999999999997 | 1.4 | AML | other | m | 2020-07-26T23:07:25.11 |
IV.CESX.HHN. | ML:0.7 | 0.00003255 | 0.2 | AML | other | m | 2020-07-26T23:07:30.99 |
IV.CESX.HHE. | ML:0.6 | 0.0000266 | 1.4 | AML | other | m | 2020-07-26T23:07:31.00 |
IV.MGAB.HHN. | ML:0.8 | 0.0000262 | 0.16 | AML | other | m | 2020-07-26T23:07:34.86 |
IV.MGAB.HHE. | ML:0.8 | 0.000023449999999999997 | 1.54 | AML | other | m | 2020-07-26T23:07:34.18 |