A magnitude ML 0.8 earthquake occured in region: 1 km SW Norcia (PG), on
and geographic coordinates (lat, lon) 42.7880, 13.0900 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 |
---|---|---|---|---|
Norcia | PG | 1 | 4957 | 4957 |
Cascia | PG | 10 | 3217 | 8174 |
Preci | PG | 11 | 724 | 8898 |
Castelsantangelo sul Nera | MC | 13 | 281 | 9179 |
Cerreto di Spoleto | PG | 15 | 1075 | 10254 |
Poggiodomo | PG | 15 | 117 | 10371 |
Visso | MC | 16 | 1107 | 11478 |
Accumoli | RI | 17 | 667 | 12145 |
Arquata del Tronto | AP | 17 | 1178 | 13323 |
Sellano | PG | 17 | 1079 | 14402 |
Ussita | MC | 18 | 444 | 14846 |
Vallo di Nera | PG | 19 | 364 | 15210 |
Monteleone di Spoleto | PG | 19 | 599 | 15809 |
Cittareale | RI | 20 | 482 | 16291 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.8 | 2021-10-25 00:22:15 |
42.7885 | 13.0898 | 11 | 2021-10-25 00:26:58 |
Sala Sismica INGV-Roma | 96966351 |
Field | Value |
---|---|
Time (UTC) | 2021-10-25 00:22:15 ± 0.05 |
Latitude | 42.7885 ± 0.0036 |
Longitude | 13.0898 ± 0.0049 |
Depth (km) | 11 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 96966351 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 550 |
Semi-minor axis of confidence ellipse (meter) | 120 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 312 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 550.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 169 |
Number of associated phases, regardless of their use for origin computation | 13 |
Number of defining phases | 13 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.11 |
Epicentral distance of station closest to the epicenter (degree) | 0.04856 |
Epicentral distance of station farthest from the epicenter (degree) | 0.41189 |
Number of stations at which the event was observed | 8 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 0.8 |
Uncertainty | 0.2 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 96966351 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-10-25 00:26:58 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CSP1.EHZ. | 2021-10-25T00:22:27.94 | 0.3 | undecidable | manual | S | 15 | 34.9428 | 90 | 0.24 | 69 |
IV.FDMO.HHZ. | 2021-10-25T00:22:25.62 | 0.3 | undecidable | manual | S | 360 | 27.5502 | 90 | -0.1 | 71 |
IV.TERO.HHZ. | 2021-10-25T00:22:24.47 | 0.3 | undecidable | manual | P | 114 | 45.7209 | 90 | 0.08 | 70 |
IV.MMO1.EHZ. | 2021-10-25T00:22:24.44 | 0.3 | undecidable | manual | S | 57 | 22.8549 | 90 | -0.04 | 74 |
IV.LNSS.HHE. | 2021-10-25T00:22:23.86 | 0.3 | undecidable | manual | S | 191 | 20.9679 | 90 | -0.12 | 72 |
IV.CSP1.EHZ. | 2021-10-25T00:22:22.85 | 0.3 | undecidable | manual | P | 15 | 34.9428 | 90 | 0.13 | 71 |
IV.SMA1.EHZ. | 2021-10-25T00:22:21.53 | 0.3 | undecidable | manual | P | 131 | 26.5512 | 90 | 0.09 | 72 |
IV.FDMO.HHZ. | 2021-10-25T00:22:21.68 | 0.3 | undecidable | manual | P | 360 | 27.5502 | 90 | 0.1 | 73 |
IV.MMO1.EHZ. | 2021-10-25T00:22:20.79 | 0.3 | undecidable | manual | P | 57 | 22.8549 | 90 | -0.07 | 73 |
IV.LNSS.HHE. | 2021-10-25T00:22:20.50 | 0.1 | undecidable | manual | P | 191 | 20.9679 | 90 | -0.07 | 96 |
IV.T1299.HNZ. | 2021-10-25T00:22:20.94 | 0.3 | undecidable | manual | P | 137 | 23.2545 | 90 | 0.03 | 73 |
IV.NRCA.HHZ. | 2021-10-25T00:22:20.15 | 0.1 | undecidable | manual | S | 22 | 5.3946 | 145 | -0.04 | 100 |
IV.NRCA.HHZ. | 2021-10-25T00:22:18.55 | 0.3 | undecidable | manual | P | 22 | 5.3946 | 145 | 0.16 | 74 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHE. | ML:0.9 | 0.00012285 | 1.2 | AML | other | m | 2021-10-25T00:22:20.28 |
IV.NRCA.HHN. | ML:0.7 | 0.00007455000000000001 | 1.08 | AML | other | m | 2021-10-25T00:22:20.32 |