A magnitude ML 1.6 earthquake occured in region: 1 km NE Norcia (PG), on
and geographic coordinates (lat, lon) 42.7980, 13.1020 at 10 km depth.
The earthquake was located by: Bollettino Sismico Italiano INGV.
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 |
Preci | PG | 10 | 724 | 5681 |
Cascia | PG | 11 | 3217 | 8898 |
Castelsantangelo sul Nera | MC | 12 | 281 | 9179 |
Visso | MC | 15 | 1107 | 10286 |
Cerreto di Spoleto | PG | 15 | 1075 | 11361 |
Arquata del Tronto | AP | 16 | 1178 | 12539 |
Accumoli | RI | 17 | 667 | 13206 |
Poggiodomo | PG | 17 | 117 | 13323 |
Ussita | MC | 17 | 444 | 13767 |
Sellano | PG | 18 | 1079 | 14846 |
Montegallo | AP | 20 | 523 | 15369 |
Vallo di Nera | PG | 20 | 364 | 15733 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.6 | 2021-10-02 03:43:02 |
42.798 | 13.1018 | 11 | 2022-03-30 13:04:35 |
Bollettino Sismico Italiano INGV | 100717921 |
Reviewed Rev100 |
ML 1.7 | 2021-10-02 03:43:02 |
42.797 | 13.1078 | 11 | 2021-10-02 03:58:16 |
Sala Sismica INGV-Roma | 96121431 |
Field | Value |
---|---|
Time (UTC) | 2021-10-02 03:43:02 ± 0.04 |
Latitude | 42.7980 ± 0.0018 |
Longitude | 13.1018 ± 0.0037 |
Depth (km) | 11 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 100717921 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 320 |
Semi-minor axis of confidence ellipse (meter) | 183 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 273 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 320.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 90 |
Number of associated phases, regardless of their use for origin computation | 23 |
Number of defining phases | 23 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.14 |
Epicentral distance of station closest to the epicenter (degree) | 0.03687 |
Epicentral distance of station farthest from the epicenter (degree) | 0.40829 |
Number of stations at which the event was observed | 12 |
Number of stations from which data was used for origin computation | 12 |
Field | Value |
---|---|
Value | 1.7 |
Uncertainty | 0.1 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 96121431 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-10-02 03:58:16 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.1 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 100717921 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2022-02-07 16:49:31 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.RM33.HNE. | 2021-10-02T03:43:13.69 | 0.6 | undecidable | manual | S | 164 | 33.3444 | 50 | 0.08 | 48 |
IV.CSP1.EHZ. | 2021-10-02T03:43:13.89 | 0.6 | undecidable | manual | S | 14 | 33.6441 | 50 | 0.2 | 46 |
IV.CESI.HHZ. | 2021-10-02T03:43:12.14 | 0.6 | undecidable | manual | S | 325 | 27.9498 | 50 | -0.04 | 48 |
IV.FDMO.HHZ. | 2021-10-02T03:43:11.64 | 0.6 | undecidable | manual | S | 357 | 26.4513 | 50 | -0.14 | 48 |
IV.T1299.HNN. | 2021-10-02T03:43:11.24 | 0.6 | undecidable | manual | S | 141 | 23.3544 | 50 | 0.29 | 46 |
IV.SMA1.EHZ. | 2021-10-02T03:43:11.95 | 0.6 | undecidable | manual | S | 134 | 26.5512 | 50 | 0.14 | 48 |
IV.MMO1.EHZ. | 2021-10-02T03:43:10.13 | 0.6 | undecidable | manual | S | 58 | 21.4674 | 116 | -0.3 | 46 |
IV.TERO.HHZ. | 2021-10-02T03:43:10.41 | 0.3 | undecidable | manual | P | 115 | 45.3213 | 50 | -0.19 | 68 |
IV.LNSS.HHZ. | 2021-10-02T03:43:10.43 | 0.6 | undecidable | manual | S | 193 | 22.2555 | 50 | -0.21 | 47 |
IV.GAVE.EHZ. | 2021-10-02T03:43:10.26 | 0.6 | undecidable | manual | S | 235 | 20.5683 | 117 | 0.11 | 48 |
IV.CSP1.EHZ. | 2021-10-02T03:43:08.84 | 0.1 | undecidable | manual | P | 14 | 33.6441 | 50 | 0.04 | 96 |
IV.MC2.EHZ. | 2021-10-02T03:43:08.53 | 0.6 | undecidable | manual | S | 29 | 14.4744 | 126 | 0.2 | 48 |
IV.RM33.HNE. | 2021-10-02T03:43:08.49 | 0.3 | undecidable | manual | P | 164 | 33.3444 | 50 | -0.27 | 69 |
IV.T1299.HNN. | 2021-10-02T03:43:07.30 | 0.1 | undecidable | manual | P | 141 | 23.3544 | 50 | 0.08 | 97 |
IV.SMA1.EHZ. | 2021-10-02T03:43:07.72 | 0.3 | undecidable | manual | P | 134 | 26.5512 | 50 | 0 | 73 |
IV.FDMO.HHZ. | 2021-10-02T03:43:07.63 | 0.1 | undecidable | manual | P | 357 | 26.4513 | 50 | -0.07 | 97 |
IV.CESI.HHZ. | 2021-10-02T03:43:07.93 | 0.1 | undecidable | manual | P | 325 | 27.9498 | 50 | 0 | 98 |
IV.GAVE.EHZ. | 2021-10-02T03:43:06.87 | 0.3 | undecidable | manual | P | 235 | 20.5683 | 117 | 0.11 | 72 |
IV.MMO1.EHZ. | 2021-10-02T03:43:06.90 | 0.1 | undecidable | manual | P | 58 | 21.4674 | 116 | -0.02 | 98 |
IV.LNSS.HHZ. | 2021-10-02T03:43:06.97 | 0.3 | undecidable | manual | P | 193 | 22.2555 | 50 | -0.07 | 73 |
IV.MC2.EHZ. | 2021-10-02T03:43:05.92 | 0.1 | undecidable | manual | P | 29 | 14.4744 | 126 | 0.21 | 96 |
IV.NRCA.HHZ. | 2021-10-02T03:43:05.78 | 0.3 | undecidable | manual | S | 14 | 4.0959 | 159 | -0.26 | 72 |
IV.NRCA.HHZ. | 2021-10-02T03:43:04.47 | 0.1 | undecidable | manual | P | 14 | 4.0959 | 159 | 0.08 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HNN. | ML:1.6 | 0.0007825 | 0.08 | AML | other | m | 2021-10-02T03:43:05.80 |
IV.NRCA.HHN. | ML:1.7 | 0.000861 | 0.08 | AML | other | m | 2021-10-02T03:43:05.84 |
IV.NRCA.HHE. | ML:1.6 | 0.0006605 | 0.16 | AML | other | m | 2021-10-02T03:43:05.93 |
IV.NRCA.HNE. | ML:1.6 | 0.0006345000000000001 | 0.16 | AML | other | m | 2021-10-02T03:43:05.85 |