A magnitude ML 0.8 earthquake occured in region: 2 km SE Spoleto (PG), on
and geographic coordinates (lat, lon) 42.7270, 12.7560 at 11 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 |
---|---|---|---|---|
Spoleto | PG | 2 | 38218 | 38218 |
Scheggino | PG | 6 | 461 | 38679 |
Sant'Anatolia di Narco | PG | 7 | 564 | 39243 |
Vallo di Nera | PG | 10 | 364 | 39607 |
Campello sul Clitunno | PG | 11 | 2442 | 42049 |
Ferentillo | TR | 12 | 1913 | 43962 |
Castel Ritaldi | PG | 13 | 3278 | 47240 |
Montefranco | TR | 14 | 1276 | 48516 |
Poggiodomo | PG | 15 | 117 | 48633 |
Arrone | TR | 16 | 2763 | 51396 |
Cerreto di Spoleto | PG | 17 | 1075 | 52471 |
Trevi | PG | 17 | 8469 | 60940 |
Polino | TR | 17 | 233 | 61173 |
Acquasparta | TR | 18 | 4778 | 65951 |
Monteleone di Spoleto | PG | 18 | 599 | 66550 |
Giano dell'Umbria | PG | 19 | 3846 | 70396 |
Massa Martana | PG | 20 | 3770 | 74166 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.8 | 2021-12-31 05:41:10 |
42.7272 | 12.7557 | 11 | 2021-12-31 05:47:12 |
Sala Sismica INGV-Roma | 99179431 |
Field | Value |
---|---|
Time (UTC) | 2021-12-31 05:41:10 ± 0.04 |
Latitude | 42.7272 ± 0.0036 |
Longitude | 12.7557 ± 0.0037 |
Depth (km) | 11 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 99179431 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 389 |
Semi-minor axis of confidence ellipse (meter) | 300 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 215 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 390.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 73 |
Number of associated phases, regardless of their use for origin computation | 17 |
Number of defining phases | 16 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.13 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.32286 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 0.8 |
Uncertainty | 0.4 |
Num. used stations | 22 |
Type of magnitude | ML |
Reference to an origin | 99179431 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-12-31 05:47:12 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.RCAV.EHZ. | 2021-12-31T05:41:39.90 | 3.0 | undecidable | manual | S | -0.02 | 0 | |||
IV.ASSB.HHZ. | 2021-12-31T05:41:23.08 | 0.6 | undecidable | manual | S | 347 | 35.8419 | 50 | 0.09 | 50 |
IV.CESI.HHZ. | 2021-12-31T05:41:22.24 | 0.6 | undecidable | manual | S | 21 | 33.1446 | 50 | -0.01 | 49 |
IV.NRCA.HHZ. | 2021-12-31T05:41:21.69 | 0.6 | undecidable | manual | S | 68 | 31.4463 | 50 | -0.13 | 48 |
IV.LNSS.HHZ. | 2021-12-31T05:41:20.45 | 0.6 | undecidable | manual | S | 121 | 26.9508 | 50 | -0.17 | 48 |
IV.CESX.HHZ. | 2021-12-31T05:41:18.30 | 0.3 | undecidable | manual | S | 226 | 19.0698 | 50 | -0.2 | 74 |
IV.CESI.HHZ. | 2021-12-31T05:41:17.53 | 0.6 | negative | manual | P | 21 | 33.1446 | 50 | 0.06 | 50 |
IV.ARRO.EHZ. | 2021-12-31T05:41:17.73 | 0.3 | undecidable | manual | S | 177 | 16.4724 | 124 | -0.06 | 78 |
IV.ASSB.HHZ. | 2021-12-31T05:41:17.99 | 0.6 | negative | manual | P | 347 | 35.8419 | 50 | 0.09 | 50 |
IV.NRCA.HHZ. | 2021-12-31T05:41:17.12 | 0.1 | undecidable | manual | P | 68 | 31.4463 | 50 | -0.1 | 98 |
IV.MOMA.HHZ. | 2021-12-31T05:41:17.83 | 0.6 | undecidable | manual | S | 299 | 17.3715 | 50 | -0.22 | 50 |
IV.LNSS.HHZ. | 2021-12-31T05:41:16.78 | 1.0 | positive | manual | P | 121 | 26.9508 | 50 | 0.25 | 25 |
IV.GAVE.EHZ. | 2021-12-31T05:41:16.48 | 0.6 | undecidable | manual | S | 109 | 11.9769 | 133 | -0.08 | 52 |
IV.CESX.HHZ. | 2021-12-31T05:41:15.51 | 0.1 | undecidable | manual | P | 226 | 19.0698 | 50 | 0.2 | 100 |
IV.MOMA.HHZ. | 2021-12-31T05:41:15.19 | 1.0 | negative | manual | P | 299 | 17.3715 | 50 | 0.15 | 25 |
IV.ARRO.EHZ. | 2021-12-31T05:41:15.11 | 0.1 | undecidable | manual | P | 177 | 16.4724 | 124 | 0.22 | 99 |
IV.GAVE.EHZ. | 2021-12-31T05:41:14.30 | 0.6 | negative | manual | P | 109 | 11.9769 | 133 | 0.12 | 51 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.GAVE.EHE. | ML:0.6 | 0.00004578106 | 0.1376 | AML | other | m | 2021-12-31T05:41:18.01 |
IV.GAVE.EHN. | ML:0.5 | 0.0000373 | 0.22 | AML | other | m | 2021-12-31T05:41:17.11 |
IV.GAVE.HNE. | ML:1.0 | 0.000109139385 | 0.4704 | AML | other | m | 2021-12-31T05:41:20.65 |
IV.GAVE.HNN. | ML:1.1 | 0.00014848975 | 0.8096 | AML | other | m | 2021-12-31T05:41:19.18 |
IV.MOMA.HHE. | ML:0.6 | 0.000027641195000000002 | 0.16 | AML | other | m | 2021-12-31T05:41:18.53 |
IV.MOMA.HHN. | ML:0.4 | 0.000022309259999999997 | 0.1408 | AML | other | m | 2021-12-31T05:41:18.39 |
IV.MOMA.HNE. | ML:1.1 | 0.00010129259 | 0.64 | AML | other | m | 2021-12-31T05:41:14.67 |
IV.MOMA.HNN. | ML:1.2 | 0.000116827865 | 1.1904 | AML | other | m | 2021-12-31T05:41:24.99 |
IV.LNSS.HHE. | ML:0.8 | 0.00003142483 | 0.1184 | AML | other | m | 2021-12-31T05:41:20.75 |
IV.LNSS.HHN. | ML:0.6 | 0.0000216164555 | 0.1408 | AML | other | m | 2021-12-31T05:41:20.70 |
IV.LNSS.HNE. | ML:1.4 | 0.000135375 | 1.2192 | AML | other | m | 2021-12-31T05:41:26.37 |
IV.LNSS.HNN. | ML:1.3 | 0.000103797615 | 0.72 | AML | other | m | 2021-12-31T05:41:27.81 |
IV.NRCA.HHE. | ML:0.5 | 0.000013184015 | 0.1024 | AML | other | m | 2021-12-31T05:41:22.84 |
IV.NRCA.HHN. | ML:0.5 | 0.000016124825 | 0.1024 | AML | other | m | 2021-12-31T05:41:22.58 |
IV.NRCA.HNE. | ML:1.8 | 0.000279304075 | 0.9184 | AML | other | m | 2021-12-31T05:41:22.82 |
IV.NRCA.HNN. | ML:1.7 | 0.00021437765 | 0.6624 | AML | other | m | 2021-12-31T05:41:24.51 |
IV.CESI.HHE. | ML:0.4 | 0.000012004819499999999 | 0.2016 | AML | other | m | 2021-12-31T05:41:22.46 |
IV.CESI.HHN. | ML:0.7 | 0.00002117607 | 0.2208 | AML | other | m | 2021-12-31T05:41:22.49 |
IV.CESI.HNE. | ML:1.6 | 0.00014824586500000001 | 0.768 | AML | other | m | 2021-12-31T05:41:24.63 |
IV.CESI.HNN. | ML:1.4 | 0.000120606 | 0.752 | AML | other | m | 2021-12-31T05:41:23.33 |
IV.ASSB.HHE. | ML:0.6 | 0.00001679613 | 1.3568 | AML | other | m | 2021-12-31T05:41:33.45 |
IV.ASSB.HHN. | ML:0.6 | 0.000013703950500000001 | 0.2016 | AML | other | m | 2021-12-31T05:41:23.50 |