A magnitude ML 1.0 earthquake occured in region: 3 km E Cerreto di Spoleto (PG), on
and geographic coordinates (lat, lon) 42.8290, 12.9470 at 12 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 | 7 | 1079 | 2154 |
Preci | PG | 9 | 724 | 2878 |
Vallo di Nera | PG | 10 | 364 | 3242 |
Norcia | PG | 13 | 4957 | 8199 |
Poggiodomo | PG | 13 | 117 | 8316 |
Cascia | PG | 13 | 3217 | 11533 |
Campello sul Clitunno | PG | 14 | 2442 | 13975 |
Sant'Anatolia di Narco | PG | 14 | 564 | 14539 |
Scheggino | PG | 16 | 461 | 15000 |
Visso | MC | 16 | 1107 | 16107 |
Trevi | PG | 17 | 8469 | 24576 |
Castelsantangelo sul Nera | MC | 18 | 281 | 24857 |
Monte Cavallo | MC | 19 | 145 | 25002 |
Monteleone di Spoleto | PG | 20 | 599 | 25601 |
Spoleto | PG | 20 | 38218 | 63819 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.0 | 2021-10-15 20:58:09 |
42.8293 | 12.9467 | 12 | 2021-10-15 21:01:46 |
Sala Sismica INGV-Roma | 96625421 |
Field | Value |
---|---|
Time (UTC) | 2021-10-15 20:58:09 ± 0.05 |
Latitude | 42.8293 ± 0.0018 |
Longitude | 12.9467 ± 0.0037 |
Depth (km) | 12 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 96625421 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 340 |
Semi-minor axis of confidence ellipse (meter) | 120 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 86 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 340.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 154 |
Number of associated phases, regardless of their use for origin computation | 10 |
Number of defining phases | 10 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.07 |
Epicentral distance of station closest to the epicenter (degree) | 0.12321 |
Epicentral distance of station farthest from the epicenter (degree) | 0.23652 |
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 | 1.0 |
Uncertainty | 0.1 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 96625421 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-10-15 21:01:46 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.LNSS.HHZ. | 2021-10-15T20:58:18.71 | 0.6 | undecidable | manual | S | 163 | 26.2515 | 93 | -0.04 | 50 |
IV.FDMO.HHZ. | 2021-10-15T20:58:18.54 | 0.6 | undecidable | manual | S | 26 | 25.6521 | 93 | -0.05 | 50 |
IV.CESI.HHZ. | 2021-10-15T20:58:16.94 | 0.6 | undecidable | manual | S | 350 | 19.7691 | 95 | -0.09 | 51 |
IV.NRCA.HHZ. | 2021-10-15T20:58:15.34 | 0.6 | undecidable | manual | S | 88 | 13.6752 | 109 | -0.07 | 52 |
IV.GAVE.EHZ. | 2021-10-15T20:58:15.84 | 0.6 | undecidable | manual | S | 196 | 15.7731 | 101 | -0.13 | 52 |
IV.FDMO.HHZ. | 2021-10-15T20:58:14.68 | 0.6 | positive | manual | P | 26 | 25.6521 | 93 | 0.02 | 49 |
IV.LNSS.HHZ. | 2021-10-15T20:58:14.72 | 0.1 | undecidable | manual | P | 163 | 26.2515 | 93 | -0.03 | 100 |
IV.CESI.HHZ. | 2021-10-15T20:58:13.80 | 0.3 | positive | manual | P | 350 | 19.7691 | 95 | 0.04 | 75 |
IV.GAVE.EHZ. | 2021-10-15T20:58:13.21 | 0.1 | undecidable | manual | P | 196 | 15.7731 | 101 | 0.07 | 100 |
IV.NRCA.HHZ. | 2021-10-15T20:58:12.93 | 0.1 | negative | manual | P | 88 | 13.6752 | 109 | 0.11 | 99 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.LNSS.HHE. | ML:1.1 | 0.0000645 | 0.42 | AML | other | m | 2021-10-15T20:58:14.62 |
IV.NRCA.HHE. | ML:0.9 | 0.00007994999999999999 | 0.16 | AML | other | m | 2021-10-15T20:58:15.46 |
IV.NRCA.HHN. | ML:0.9 | 0.0000694 | 0.8 | AML | other | m | 2021-10-15T20:58:15.98 |
IV.LNSS.HHN. | ML:1.1 | 0.0000654 | 0.42 | AML | other | m | 2021-10-15T20:58:29.50 |