A magnitude ML 1.5 earthquake occured in region: 5 km SE Acquasparta (TR), on
and geographic coordinates (lat, lon) 42.6630, 12.5960 at 8 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 |
---|---|---|---|---|
Acquasparta | TR | 5 | 4778 | 4778 |
San Gemini | TR | 7 | 5018 | 9796 |
Montecastrilli | TR | 9 | 5022 | 14818 |
Terni | TR | 12 | 111501 | 126319 |
Avigliano Umbro | TR | 14 | 2558 | 128877 |
Massa Martana | PG | 14 | 3770 | 132647 |
Spoleto | PG | 14 | 38218 | 170865 |
Montefranco | TR | 16 | 1276 | 172141 |
Ferentillo | TR | 17 | 1913 | 174054 |
Arrone | TR | 17 | 2763 | 176817 |
Narni | TR | 17 | 19785 | 196602 |
Amelia | TR | 19 | 11897 | 208499 |
Castel Ritaldi | PG | 19 | 3278 | 211777 |
Giano dell'Umbria | PG | 19 | 3846 | 215623 |
Stroncone | TR | 19 | 4917 | 220540 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.5 | 2021-12-31 18:51:23 |
42.6633 | 12.596 | 8 | 2022-03-30 13:04:30 |
Bollettino Sismico Italiano INGV | 99782641 |
Reviewed Rev100 |
ML 1.7 | 2021-12-31 18:51:23 |
42.6583 | 12.5847 | 8 | 2021-12-31 19:08:53 |
Sala Sismica INGV-Roma | 99202441 |
Field | Value |
---|---|
Time (UTC) | 2021-12-31 18:51:23 ± 0.06 |
Latitude | 42.6633 ± 0.0036 |
Longitude | 12.5960 ± 0.0049 |
Depth (km) | 8 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 99782641 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 459 |
Semi-minor axis of confidence ellipse (meter) | 322 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 230 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 460.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 51 |
Number of associated phases, regardless of their use for origin computation | 34 |
Number of defining phases | 34 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.19 |
Epicentral distance of station closest to the epicenter (degree) | 0.05486 |
Epicentral distance of station farthest from the epicenter (degree) | 0.71226 |
Number of stations at which the event was observed | 23 |
Number of stations from which data was used for origin computation | 23 |
Field | Value |
---|---|
Value | 1.5 |
Uncertainty | 0.1 |
Num. used stations | 12 |
Type of magnitude | ML |
Reference to an origin | 99782641 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2022-01-14 16:11:12 |
Field | Value |
---|---|
Value | 1.7 |
Uncertainty | 0.2 |
Num. used stations | 28 |
Type of magnitude | ML |
Reference to an origin | 99202441 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-12-31 19:08:53 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.FDMO.HHZ. | 2021-12-31T18:51:42.59 | 0.6 | undecidable | manual | S | 44 | 57.498 | 50 | 0.19 | 48 |
IV.MC2.EHZ. | 2021-12-31T18:51:42.20 | 0.6 | undecidable | manual | S | 60 | 55.5999 | 50 | 0.33 | 47 |
IV.MGAB.HHZ. | 2021-12-31T18:51:40.33 | 0.6 | undecidable | manual | S | 305 | 48.1185 | 50 | 0.44 | 47 |
IV.NRCA.HHZ. | 2021-12-31T18:51:39.53 | 0.6 | undecidable | manual | S | 66 | 46.2204 | 50 | 0.14 | 50 |
IV.CESI.HHZ. | 2021-12-31T18:51:39.71 | 0.6 | undecidable | manual | S | 33 | 45.4212 | 50 | 0.53 | 46 |
IV.ASSB.HHZ. | 2021-12-31T18:51:38.57 | 0.6 | undecidable | manual | S | 7 | 42.4242 | 50 | 0.21 | 49 |
IV.ATMI.HHZ. | 2021-12-31T18:51:38.46 | 1.0 | undecidable | manual | P | 340 | 79.0653 | 50 | 0.59 | 21 |
IV.CSP1.EHE. | 2021-12-31T18:51:36.10 | 1.0 | undecidable | manual | P | 46 | 68.5758 | 50 | -0.16 | 24 |
IV.MURB.HHZ. | 2021-12-31T18:51:36.28 | 1.0 | undecidable | manual | P | 355 | 66.7776 | 50 | 0.3 | 23 |
IV.LNSS.HHZ. | 2021-12-31T18:51:36.89 | 0.6 | undecidable | manual | S | 100 | 36.8298 | 50 | 0 | 52 |
IV.BARO.HNZ. | 2021-12-31T18:51:35.92 | 1.0 | undecidable | manual | P | 224 | 64.0914 | 50 | 0.35 | 23 |
IV.LATE.HHN. | 2021-12-31T18:51:35.89 | 1.0 | undecidable | manual | P | 265 | 64.8906 | 50 | 0.2 | 24 |
IV.FIAM.HNN. | 2021-12-31T18:51:35.23 | 1.0 | undecidable | manual | P | 136 | 61.1943 | 50 | 0.11 | 24 |
IV.MC2.EHZ. | 2021-12-31T18:51:34.23 | 1.0 | negative | manual | P | 60 | 55.5999 | 50 | -0.03 | 25 |
IV.SMA1.EHZ. | 2021-12-31T18:51:34.94 | 0.3 | undecidable | manual | P | 93 | 60.3951 | 50 | -0.06 | 74 |
IV.FDMO.HHZ. | 2021-12-31T18:51:34.29 | 0.3 | negative | manual | P | 44 | 57.498 | 50 | -0.27 | 71 |
IV.SACS.HHE. | 2021-12-31T18:51:34.90 | 1.0 | undecidable | manual | P | 290 | 59.5959 | 50 | 0.03 | 25 |
IV.MML1.EHZ. | 2021-12-31T18:51:34.57 | 1.0 | undecidable | manual | P | 31 | 58.497 | 50 | -0.14 | 24 |
IV.ATCC.EHE. | 2021-12-31T18:51:34.47 | 1.0 | undecidable | manual | P | 4 | 57.9975 | 50 | -0.16 | 24 |
IV.RM33.EHZ. | 2021-12-31T18:51:33.69 | 0.3 | undecidable | manual | P | 109 | 53.3022 | 50 | -0.22 | 73 |
IV.CESI.HHZ. | 2021-12-31T18:51:32.37 | 1.0 | undecidable | manual | P | 33 | 45.4212 | 50 | -0.33 | 24 |
IV.MGAB.HHZ. | 2021-12-31T18:51:32.80 | 0.3 | undecidable | manual | P | 305 | 48.1185 | 50 | -0.31 | 72 |
IV.NRCA.HHZ. | 2021-12-31T18:51:32.43 | 0.3 | undecidable | manual | P | 66 | 46.2204 | 50 | -0.39 | 71 |
IV.LNSS.HHZ. | 2021-12-31T18:51:31.01 | 0.3 | undecidable | manual | P | 100 | 36.8298 | 50 | -0.36 | 73 |
IV.ASSB.HHZ. | 2021-12-31T18:51:31.77 | 0.6 | undecidable | manual | P | 7 | 42.4242 | 50 | -0.45 | 47 |
IT.GNU.HGE. | 2021-12-31T18:51:30.00 | 0.6 | undecidable | manual | S | 352 | 15.7731 | 116 | 0.09 | 53 |
IV.ARRO.EHZ. | 2021-12-31T18:51:30.45 | 0.6 | undecidable | manual | S | 124 | 16.6722 | 115 | 0.24 | 51 |
IV.MOMA.HHZ. | 2021-12-31T18:51:29.95 | 0.6 | undecidable | manual | S | 352 | 15.7731 | 116 | 0.04 | 54 |
IV.GAVE.EHN. | 2021-12-31T18:51:28.86 | 0.6 | undecidable | manual | P | 82 | 24.5532 | 107 | -0.13 | 52 |
IT.GNU.HGE. | 2021-12-31T18:51:27.14 | 1.0 | undecidable | manual | P | 352 | 15.7731 | 116 | -0.2 | 26 |
IV.ARRO.EHZ. | 2021-12-31T18:51:27.89 | 0.1 | undecidable | manual | P | 124 | 16.6722 | 115 | 0.37 | 100 |
IV.CESX.HHZ. | 2021-12-31T18:51:27.15 | 0.3 | undecidable | manual | S | 187 | 6.0939 | 141 | -0.1 | 81 |
IV.MOMA.HHZ. | 2021-12-31T18:51:27.15 | 0.3 | negative | manual | P | 352 | 15.7731 | 116 | -0.19 | 78 |
IV.CESX.HHZ. | 2021-12-31T18:51:25.98 | 0.3 | negative | manual | P | 187 | 6.0939 | 141 | 0.17 | 80 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.ASSB.HHE. | ML:1.4 | 0.00007485 | 0.4 | AML | other | m | 2021-12-31T18:51:39.97 |
IV.ASSB.HHN. | ML:1.4 | 0.0000841 | 0.28 | AML | other | m | 2021-12-31T18:51:41.69 |
IV.CESI.HHN. | ML:1.6 | 0.00011649999999999999 | 0.64 | AML | other | m | 2021-12-31T18:51:41.25 |
IV.CESI.HHE. | ML:1.3 | 0.0000569 | 0.52 | AML | other | m | 2021-12-31T18:51:41.61 |
IV.MGAB.HHN. | ML:1.6 | 0.00009905 | 0.26 | AML | other | m | 2021-12-31T18:51:43.13 |
IV.FDMO.HHN. | ML:1.5 | 0.0000636 | 0.46 | AML | other | m | 2021-12-31T18:51:43.50 |
IV.FDMO.HHE. | ML:1.4 | 0.000059300000000000005 | 0.82 | AML | other | m | 2021-12-31T18:51:44.51 |
IV.RM33.EHE. | ML:1.6 | 0.0000849 | 0.98 | AML | other | m | 2021-12-31T18:51:44.31 |
IV.RM33.EHN. | ML:1.5 | 0.00008005000000000001 | 0.78 | AML | other | m | 2021-12-31T18:51:45.59 |
IV.MML1.EHE. | ML:1.5 | 0.00006325 | 1.14 | AML | other | m | 2021-12-31T18:51:46.19 |
IV.MGAB.HHE. | ML:1.6 | 0.0000992 | 0.54 | AML | other | m | 2021-12-31T18:51:47.04 |
IV.MML1.EHN. | ML:1.3 | 0.000047 | 1 | AML | other | m | 2021-12-31T18:51:48.02 |