A magnitude ML 0.9 earthquake occured in region: 3 km NE Cerreto di Spoleto (PG), on
and geographic coordinates (lat, lon) 42.8420, 12.9330 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 |
---|---|---|---|---|
Cerreto di Spoleto | PG | 3 | 1075 | 1075 |
Sellano | PG | 5 | 1079 | 2154 |
Preci | PG | 10 | 724 | 2878 |
Vallo di Nera | PG | 10 | 364 | 3242 |
Campello sul Clitunno | PG | 13 | 2442 | 5684 |
Norcia | PG | 14 | 4957 | 10641 |
Poggiodomo | PG | 14 | 117 | 10758 |
Sant'Anatolia di Narco | PG | 14 | 564 | 11322 |
Cascia | PG | 15 | 3217 | 14539 |
Trevi | PG | 16 | 8469 | 23008 |
Visso | MC | 16 | 1107 | 24115 |
Scheggino | PG | 17 | 461 | 24576 |
Monte Cavallo | MC | 18 | 145 | 24721 |
Castelsantangelo sul Nera | MC | 19 | 281 | 25002 |
Spoleto | PG | 20 | 38218 | 63220 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2021-12-09 08:31:40 |
42.8423 | 12.9328 | 11 | 2021-12-09 08:43:10 |
Sala Sismica INGV-Roma | 98339291 |
Field | Value |
---|---|
Time (UTC) | 2021-12-09 08:31:40 ± 0.05 |
Latitude | 42.8423 ± 0.0018 |
Longitude | 12.9328 ± 0.0049 |
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 | 98339291 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 427 |
Semi-minor axis of confidence ellipse (meter) | 102 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 276 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 430.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 162 |
Number of associated phases, regardless of their use for origin computation | 28 |
Number of defining phases | 12 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.12 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.25181 |
Number of stations at which the event was observed | 20 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.3 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 98339291 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-12-09 08:43:10 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
CH.BERNI.HHZ. | 2021-12-09T08:33:21.91 | 3.0 | undecidable | manual | Sn | -5.32 | 0 | |||
IV.VOBA.EHZ. | 2021-12-09T08:33:13.39 | 3.0 | undecidable | manual | Sg | 5.86 | 0 | |||
IV.TREG.EHZ. | 2021-12-09T08:33:08.40 | 3.0 | undecidable | manual | Sg | 7.55 | 0 | |||
IT.ORP.HGZ. | 2021-12-09T08:32:37.83 | 3.0 | undecidable | manual | Sg | 4.44 | 0 | |||
IV.IMOL.HNZ. | 2021-12-09T08:32:33.37 | 3.0 | undecidable | manual | Sg | 0.07 | 0 | |||
OT.OT17.EHZ. | 2021-12-09T08:32:31.76 | 3.0 | undecidable | manual | Sg | 0.24 | 0 | |||
CR.ZAG.BHZ. | 2021-12-09T08:32:17.06 | 3.0 | negative | manual | Pn | -9.99 | 0 | |||
IV.SFI.EHZ. | 2021-12-09T08:32:15.37 | 3.0 | undecidable | manual | Sn | -8.62 | 0 | |||
OT.OT13.EHZ. | 2021-12-09T08:32:13.73 | 3.0 | negative | manual | Pg | 4.29 | 0 | |||
IT.PLTA.HNZ. | 2021-12-09T08:32:13.64 | 3.0 | undecidable | manual | Sn | -8.32 | 0 | |||
IV.ZCCA.HHZ. | 2021-12-09T08:32:09.69 | 3.0 | undecidable | manual | Pg | 3.1 | 0 | |||
IT.ORP.HGZ. | 2021-12-09T08:32:06.90 | 3.0 | undecidable | manual | Pg | 3.02 | 0 | |||
OT.OT17.EHZ. | 2021-12-09T08:32:03.76 | 3.0 | undecidable | manual | Pg | 0.93 | 0 | |||
IV.CELB.HHZ. | 2021-12-09T08:32:01.17 | 3.0 | undecidable | manual | Pn | 0.78 | 0 | |||
IV.CPGN.EHZ. | 2021-12-09T08:31:53.78 | 3.0 | undecidable | manual | Pg | -2.72 | 0 | |||
IV.LNSS.HHN. | 2021-12-09T08:31:50.12 | 0.6 | undecidable | manual | S | 162 | 27.9498 | 50 | -0.11 | 48 |
IV.LAV9.HHZ. | 2021-12-09T08:31:50.00 | 3.0 | positive | manual | Pn | 1.41 | 0 | |||
IV.FDMO.HHZ. | 2021-12-09T08:31:49.22 | 0.6 | undecidable | manual | S | 30 | 24.9528 | 50 | -0.2 | 48 |
IV.MC2.EHZ. | 2021-12-09T08:31:48.91 | 0.3 | undecidable | manual | S | 70 | 22.1556 | 50 | 0.22 | 71 |
IV.GAVE.EHZ. | 2021-12-09T08:31:47.13 | 0.6 | undecidable | manual | S | 191 | 16.9719 | 122 | -0.06 | 50 |
IV.CESI.HHZ. | 2021-12-09T08:31:47.49 | 0.3 | undecidable | manual | S | 353 | 18.1707 | 121 | -0.07 | 74 |
IV.NRCA.HHZ. | 2021-12-09T08:31:46.39 | 0.6 | undecidable | manual | S | 94 | 14.7741 | 126 | -0.19 | 49 |
IV.MC2.EHZ. | 2021-12-09T08:31:45.19 | 1.0 | positive | manual | P | 70 | 22.1556 | 50 | 0.08 | 25 |
IV.FDMO.HHZ. | 2021-12-09T08:31:45.48 | 1.0 | positive | manual | P | 30 | 24.9528 | 50 | -0.06 | 25 |
IV.LNSS.HHN. | 2021-12-09T08:31:45.92 | 0.1 | undecidable | manual | P | 162 | 27.9498 | 50 | -0.08 | 97 |
IV.CESI.HHZ. | 2021-12-09T08:31:44.53 | 0.1 | positive | manual | P | 353 | 18.1707 | 121 | 0.06 | 99 |
IV.GAVE.EHZ. | 2021-12-09T08:31:44.39 | 0.1 | undecidable | manual | P | 191 | 16.9719 | 122 | 0.14 | 98 |
IV.NRCA.HHZ. | 2021-12-09T08:31:43.94 | 0.1 | undecidable | manual | P | 94 | 14.7741 | 126 | 0.04 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHE. | ML:1.0 | 0.00009029999999999999 | 0.42 | AML | other | m | 2021-12-09T08:31:49.39 |
IV.NRCA.HHN. | ML:1.1 | 0.00011329225000000002 | 0.1408 | AML | other | m | 2021-12-09T08:31:46.56 |
IV.GAVE.EHE. | ML:1.0 | 0.00007889243500000001 | 0.224 | AML | other | m | 2021-12-09T08:31:48.28 |
IV.GAVE.EHN. | ML:1.2 | 0.000119499455 | 0.2048 | AML | other | m | 2021-12-09T08:31:47.80 |
IV.CESI.HHE. | ML:0.5 | 0.00002289335 | 0.3008 | AML | other | m | 2021-12-09T08:31:48.12 |
IV.CESI.HHN. | ML:0.6 | 0.000035449865 | 0.224 | AML | other | m | 2021-12-09T08:31:47.87 |