A magnitude ML 1.0 earthquake occured in region: 2 km SE Norcia (PG), on
and geographic coordinates (lat, lon) 42.7820, 13.1120 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 | 2 | 4957 | 4957 |
Cascia | PG | 11 | 3217 | 8174 |
Preci | PG | 12 | 724 | 8898 |
Castelsantangelo sul Nera | MC | 13 | 281 | 9179 |
Accumoli | RI | 15 | 667 | 9846 |
Arquata del Tronto | AP | 15 | 1178 | 11024 |
Poggiodomo | PG | 16 | 117 | 11141 |
Cerreto di Spoleto | PG | 16 | 1075 | 12216 |
Visso | MC | 17 | 1107 | 13323 |
Ussita | MC | 18 | 444 | 13767 |
Cittareale | RI | 19 | 482 | 14249 |
Sellano | PG | 19 | 1079 | 15328 |
Montegallo | AP | 19 | 523 | 15851 |
Monteleone di Spoleto | PG | 19 | 599 | 16450 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.0 | 2021-10-20 04:53:48 |
42.7817 | 13.1117 | 11 | 2021-10-20 05:05:15 |
Sala Sismica INGV-Roma | 96785801 |
Field | Value |
---|---|
Time (UTC) | 2021-10-20 04:53:48 ± 0.1 |
Latitude | 42.7817 ± 0.0063 |
Longitude | 13.1117 ± 0.0123 |
Depth (km) | 11 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 96785801 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1116 |
Semi-minor axis of confidence ellipse (meter) | 438 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 303 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1120.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 143 |
Number of associated phases, regardless of their use for origin computation | 30 |
Number of defining phases | 12 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.29 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.25541 |
Number of stations at which the event was observed | 22 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 1.0 |
Uncertainty | 0.2 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 96785801 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-10-20 05:05:15 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.SERS.HHZ. | 2021-10-20T04:55:35.93 | 3.0 | undecidable | manual | Sn | 4.44 | 0 | |||
IV.ZEN8.EHZ. | 2021-10-20T04:55:18.64 | 3.0 | undecidable | manual | Sn | 3.58 | 0 | |||
GU.GRAM.HHZ. | 2021-10-20T04:55:13.39 | 3.0 | undecidable | manual | Sg | 15.37 | 0 | |||
IV.HLNI.HHZ. | 2021-10-20T04:55:07.86 | 3.0 | positive | manual | Pg | 15.27 | 0 | |||
IV.RESU.HHZ. | 2021-10-20T04:55:02.54 | 3.0 | undecidable | manual | Pg | 16.120001 | 0 | |||
IV.SERS.HHZ. | 2021-10-20T04:54:52.14 | 3.0 | undecidable | manual | Pg | 10.38 | 0 | |||
IV.SARZ.HHZ. | 2021-10-20T04:54:50.50 | 3.0 | positive | manual | Pg | 15.83 | 0 | |||
IV.ESML.HHZ. | 2021-10-20T04:54:47.37 | 3.0 | negative | manual | Pn | -1.72 | 0 | |||
IV.ZEN8.EHZ. | 2021-10-20T04:54:47.42 | 3.0 | negative | manual | Pg | 14.89 | 0 | |||
IV.EMPL.HHZ. | 2021-10-20T04:54:45.18 | 3.0 | negative | manual | Pn | -3.44 | 0 | |||
OT.CGL1.HHZ. | 2021-10-20T04:54:41.31 | 3.0 | undecidable | manual | Pn | 6.17 | 0 | |||
IX.NSC3.EHZ.02 | 2021-10-20T04:54:38.91 | 3.0 | undecidable | manual | Sn | -0.47 | 0 | |||
IV.TDS.HHZ. | 2021-10-20T04:54:36.36 | 3.0 | undecidable | manual | Pn | 3.43 | 0 | |||
IV.IMOL.EHZ. | 2021-10-20T04:54:36.70 | 3.0 | undecidable | manual | Sn | -2.76 | 0 | |||
IV.BRSN.EHZ. | 2021-10-20T04:54:33.98 | 3.0 | undecidable | manual | Sn | -1.9 | 0 | |||
IV.FIR.HHZ. | 2021-10-20T04:54:09.97 | 3.0 | undecidable | manual | Pn | 2.13 | 0 | |||
IV.VAGA.HHZ. | 2021-10-20T04:54:00.33 | 3.0 | positive | manual | P | -0.09 | 0 | |||
IV.FDMO.HHZ. | 2021-10-20T04:53:58.37 | 0.1 | undecidable | manual | S | 356 | 28.3494 | 50 | -0.17 | 94 |
IV.GAVE.EHZ. | 2021-10-20T04:53:56.41 | 0.1 | undecidable | manual | S | 241 | 20.3685 | 50 | 0.02 | 98 |
IV.LNSS.HHZ. | 2021-10-20T04:53:56.43 | 0.1 | undecidable | manual | S | 196 | 20.6682 | 50 | -0.06 | 97 |
IV.MMO1.EHZ. | 2021-10-20T04:53:56.62 | 0.1 | undecidable | manual | S | 53 | 21.867 | 50 | -0.18 | 94 |
IV.MC2.EHZ. | 2021-10-20T04:53:55.71 | 0.1 | undecidable | manual | S | 24 | 15.6732 | 125 | 0.56 | 87 |
IV.FDMO.HHZ. | 2021-10-20T04:53:54.37 | 0.1 | undecidable | manual | P | 356 | 28.3494 | 50 | 0.08 | 95 |
IV.RMP.HHZ. | 2021-10-20T04:53:54.87 | 3.0 | undecidable | manual | P | 0 | ||||
IV.MMO1.EHZ. | 2021-10-20T04:53:53.27 | 0.1 | undecidable | manual | P | 53 | 21.867 | 50 | -0.02 | 98 |
IV.GAVE.EHZ. | 2021-10-20T04:53:53.25 | 0.1 | undecidable | manual | P | 241 | 20.3685 | 50 | 0.19 | 94 |
IV.LNSS.HHZ. | 2021-10-20T04:53:53.15 | 0.1 | undecidable | manual | P | 196 | 20.6682 | 50 | 0.04 | 97 |
IV.MC2.EHZ. | 2021-10-20T04:53:52.49 | 0.1 | undecidable | manual | P | 24 | 15.6732 | 125 | 0.15 | 96 |
IV.NRCA.HHZ. | 2021-10-20T04:53:52.24 | 0.1 | undecidable | manual | S | 2 | 5.7942 | 152 | -0.57 | 88 |
IV.NRCA.HHZ. | 2021-10-20T04:53:50.95 | 0.1 | undecidable | manual | P | 2 | 5.7942 | 152 | -0.04 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHN. | ML:1.0 | 0.000149 | 0.92 | AML | other | m | 2021-10-20T04:53:52.33 |
IV.NRCA.HHE. | ML:1.3 | 0.00028149999999999996 | 0.08 | AML | other | m | 2021-10-20T04:53:52.44 |
IV.LNSS.HHE. | ML:0.9 | 0.00005915 | 1.66 | AML | other | m | 2021-10-20T04:53:57.05 |
IV.LNSS.HHN. | ML:0.8 | 0.0000465 | 0.42 | AML | other | m | 2021-10-20T04:53:57.35 |