A magnitude ML 1.1 earthquake occured in region: 3 km E Cerreto di Spoleto (PG), on
and geographic coordinates (lat, lon) 42.8140, 12.9490 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 |
Vallo di Nera | PG | 9 | 364 | 1439 |
Sellano | PG | 9 | 1079 | 2518 |
Preci | PG | 10 | 724 | 3242 |
Poggiodomo | PG | 11 | 117 | 3359 |
Cascia | PG | 12 | 3217 | 6576 |
Norcia | PG | 12 | 4957 | 11533 |
Sant'Anatolia di Narco | PG | 13 | 564 | 12097 |
Campello sul Clitunno | PG | 14 | 2442 | 14539 |
Scheggino | PG | 15 | 461 | 15000 |
Visso | MC | 17 | 1107 | 16107 |
Trevi | PG | 18 | 8469 | 24576 |
Monteleone di Spoleto | PG | 18 | 599 | 25175 |
Castelsantangelo sul Nera | MC | 19 | 281 | 25456 |
Spoleto | PG | 19 | 38218 | 63674 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.1 | 2021-10-20 10:01:45 |
42.8138 | 12.9487 | 11 | 2021-10-20 10:06:23 |
Sala Sismica INGV-Roma | 96797321 |
Field | Value |
---|---|
Time (UTC) | 2021-10-20 10:01:45 ± 0.07 |
Latitude | 42.8138 ± 0.0036 |
Longitude | 12.9487 ± 0.0074 |
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 | 96797321 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 630 |
Semi-minor axis of confidence ellipse (meter) | 201 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 114 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 630.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 186 |
Number of associated phases, regardless of their use for origin computation | 12 |
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) | 0.12321 |
Epicentral distance of station farthest from the epicenter (degree) | 0.33545 |
Number of stations at which the event was observed | 6 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 1.1 |
Uncertainty | 0.2 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 96797321 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-10-20 10:06:23 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CSP1.EHZ. | 2021-10-20T10:01:57.96 | 0.6 | undecidable | manual | S | 34 | 37.2294 | 50 | 0.17 | 48 |
IV.FDMO.HHZ. | 2021-10-20T10:01:54.87 | 0.6 | undecidable | manual | S | 24 | 27.1506 | 50 | -0.24 | 48 |
IV.LNSS.HHZ. | 2021-10-20T10:01:54.35 | 0.3 | undecidable | manual | S | 162 | 24.5532 | 50 | -0.06 | 75 |
IV.MC2.EHZ. | 2021-10-20T10:01:53.98 | 0.6 | undecidable | manual | S | 61 | 22.3554 | 50 | 0.16 | 49 |
IV.CSP1.EHZ. | 2021-10-20T10:01:52.50 | 1.0 | negative | manual | P | 34 | 37.2294 | 50 | -0.04 | 24 |
IV.NRCA.HHZ. | 2021-10-20T10:01:51.25 | 0.6 | undecidable | manual | S | 81 | 13.6752 | 129 | -0.17 | 50 |
IV.GAVE.EHZ. | 2021-10-20T10:01:51.44 | 0.6 | undecidable | manual | S | 198 | 14.1747 | 127 | -0.13 | 50 |
IV.MC2.EHZ. | 2021-10-20T10:01:50.35 | 1.0 | undecidable | manual | P | 61 | 22.3554 | 50 | 0.1 | 25 |
IV.LNSS.HHZ. | 2021-10-20T10:01:50.59 | 0.3 | negative | manual | P | 162 | 24.5532 | 50 | 0 | 76 |
IV.FDMO.HHZ. | 2021-10-20T10:01:50.86 | 0.6 | positive | manual | P | 24 | 27.1506 | 50 | -0.13 | 49 |
IV.GAVE.EHZ. | 2021-10-20T10:01:49.07 | 0.1 | positive | manual | P | 198 | 14.1747 | 127 | 0.13 | 100 |
IV.NRCA.HHZ. | 2021-10-20T10:01:48.96 | 0.3 | negative | manual | P | 81 | 13.6752 | 129 | 0.1 | 75 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHN. | ML:1.4 | 0.00022950000000000002 | 0.12 | AML | other | m | 2021-10-20T10:01:51.36 |
IV.NRCA.HHE. | ML:1.0 | 0.000106 | 0.52 | AML | other | m | 2021-10-20T10:01:51.63 |
IV.GAVE.EHE. | ML:1.4 | 0.0002155 | 0.14 | AML | other | m | 2021-10-20T10:01:51.77 |
IV.GAVE.EHN. | ML:1.0 | 0.0000996 | 0.22 | AML | other | m | 2021-10-20T10:01:52.01 |
IV.LNSS.HHE. | ML:1.0 | 0.0000645 | 0.72 | AML | other | m | 2021-10-20T10:01:54.57 |
IV.FDMO.HHN. | ML:0.9 | 0.00003965 | 0.36 | AML | other | m | 2021-10-20T10:01:55.11 |
IV.LNSS.HHN. | ML:1.0 | 0.000056999999999999996 | 0.8 | AML | other | m | 2021-10-20T10:01:55.73 |
IV.FDMO.HHE. | ML:0.8 | 0.00003295 | 0.4 | AML | other | m | 2021-10-20T10:01:55.46 |