A magnitude ML 0.9 earthquake occured in region: 2 km NW Massa Martana (PG), on
and geographic coordinates (lat, lon) 42.7940, 12.5120 at 8 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 | 2 | 3770 | 3770 |
Giano dell'Umbria | PG | 7 | 3846 | 7616 |
Todi | PG | 9 | 16851 | 24467 |
Acquasparta | TR | 12 | 4778 | 29245 |
Collazzone | PG | 13 | 3473 | 32718 |
Gualdo Cattaneo | PG | 13 | 6155 | 38873 |
Castel Ritaldi | PG | 14 | 3278 | 42151 |
Fratta Todina | PG | 14 | 1839 | 43990 |
Monte Castello di Vibio | PG | 14 | 1567 | 45557 |
Montecastrilli | TR | 16 | 5022 | 50579 |
Montefalco | PG | 16 | 5679 | 56258 |
Avigliano Umbro | TR | 17 | 2558 | 58816 |
Bevagna | PG | 18 | 5081 | 63897 |
Marsciano | PG | 19 | 18902 | 82799 |
Spoleto | PG | 20 | 38218 | 121017 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2022-12-31 00:54:27 |
42.794 | 12.5123 | 8 | 2022-12-31 01:50:20 |
Sala Sismica INGV-Roma | 113203651 |
Field | Value |
---|---|
Time (UTC) | 2022-12-31 00:54:27 ± 0.12 |
Latitude | 42.7940 ± 0.0027 |
Longitude | 12.5123 ± 0.0110 |
Depth (km) | 8 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 113203651 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 900 |
Semi-minor axis of confidence ellipse (meter) | 236 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 271 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 900.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 209 |
Number of associated phases, regardless of their use for origin computation | 15 |
Number of defining phases | 15 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.16 |
Epicentral distance of station closest to the epicenter (degree) | 0.04317 |
Epicentral distance of station farthest from the epicenter (degree) | 0.46315 |
Number of stations at which the event was observed | 8 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.1 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 113203651 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2022-12-31 01:50:20 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.MML1.EHZ. | 2022-12-31T00:54:44.76 | 0.3 | undecidable | manual | S | 46 | 51.4152 | 50 | 0.24 | 68 |
IV.CESI.HHZ. | 2022-12-31T00:54:41.51 | 0.3 | undecidable | manual | S | 54 | 39.5271 | 50 | 0.17 | 71 |
IV.ARRO.EHZ. | 2022-12-31T00:54:38.93 | 0.3 | undecidable | manual | S | 139 | 31.5462 | 104 | -0.01 | 74 |
IV.ASSB.HHZ. | 2022-12-31T00:54:38.48 | 0.3 | undecidable | manual | S | 23 | 30.0477 | 105 | 0.04 | 74 |
IV.MML1.EHZ. | 2022-12-31T00:54:37.14 | 0.1 | undecidable | manual | P | 46 | 51.4152 | 50 | -0.25 | 91 |
IV.ATCC.EHE. | 2022-12-31T00:54:36.31 | 0.3 | undecidable | manual | P | 13 | 44.622 | 50 | -0.02 | 72 |
IV.CESX.HHZ. | 2022-12-31T00:54:35.58 | 0.3 | undecidable | manual | S | 164 | 21.4674 | 111 | -0.02 | 76 |
IV.CESI.HHZ. | 2022-12-31T00:54:35.35 | 0.1 | undecidable | manual | P | 54 | 39.5271 | 50 | -0.2 | 94 |
IV.ARRO.EHZ. | 2022-12-31T00:54:34.05 | 0.1 | undecidable | manual | P | 139 | 31.5462 | 104 | -0.12 | 97 |
IV.ASSB.HHZ. | 2022-12-31T00:54:33.80 | 0.1 | undecidable | manual | P | 23 | 30.0477 | 105 | -0.08 | 98 |
IV.CESX.HHZ. | 2022-12-31T00:54:32.39 | 0.1 | undecidable | manual | P | 164 | 21.4674 | 111 | 0.15 | 98 |
IV.MOMA.HHZ. | 2022-12-31T00:54:30.77 | 0.3 | undecidable | manual | S | 77 | 4.7952 | 149 | -0.13 | 76 |
IT.GNU.HGZ. | 2022-12-31T00:54:30.77 | 0.3 | undecidable | manual | S | 77 | 4.7952 | 149 | -0.13 | 76 |
IT.GNU.HGZ. | 2022-12-31T00:54:29.73 | 0.1 | undecidable | manual | P | 77 | 4.7952 | 149 | 0.2 | 100 |
IV.MOMA.HHZ. | 2022-12-31T00:54:29.72 | 0.1 | undecidable | manual | P | 77 | 4.7952 | 149 | 0.19 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.CESX.HHE. | ML:1.0 | 0.00007235 | 1.64 | AML | other | m | 2022-12-31T00:54:37.12 |
IV.CESX.HHN. | ML:0.9 | 0.00005675 | 0.7 | AML | other | m | 2022-12-31T00:54:38.32 |
IV.ASSB.HHE. | ML:0.8 | 0.000031115990999999994 | 0.24 | AML | other | m | 2022-12-31T00:54:40.73 |
IV.ASSB.HHN. | ML:0.8 | 0.000032037065 | 0.16 | AML | other | m | 2022-12-31T00:54:39.89 |
IV.MOMA.HHE. | ML:0.0 | 0.00064395735 | 0.1 | AML | other | m | 2022-12-31T00:54:31.31 |
IV.MOMA.HHN. | ML:0.0 | 0.00017010085 | 0.12 | AML | other | m | 2022-12-31T00:54:31.47 |
IV.MOMA.HNE. | ML:0.0 | 0.0006207397500000001 | 0.09 | AML | other | m | 2022-12-31T00:54:31.32 |
IV.MOMA.HNN. | ML:0.0 | 0.00056096835 | 0.09 | AML | other | m | 2022-12-31T00:54:30.90 |