A magnitude ML 1.1 earthquake occured in region: 3 km SE Norcia (PG), on
and geographic coordinates (lat, lon) 42.7730, 13.1110 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 | 3 | 4957 | 4957 |
Cascia | PG | 10 | 3217 | 8174 |
Preci | PG | 13 | 724 | 8898 |
Castelsantangelo sul Nera | MC | 14 | 281 | 9179 |
Accumoli | RI | 14 | 667 | 9846 |
Arquata del Tronto | AP | 15 | 1178 | 11024 |
Poggiodomo | PG | 16 | 117 | 11141 |
Cerreto di Spoleto | PG | 17 | 1075 | 12216 |
Cittareale | RI | 18 | 482 | 12698 |
Visso | MC | 18 | 1107 | 13805 |
Monteleone di Spoleto | PG | 19 | 599 | 14404 |
Ussita | MC | 19 | 444 | 14848 |
Sellano | PG | 20 | 1079 | 15927 |
Montegallo | AP | 20 | 523 | 16450 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.1 | 2021-09-04 21:32:54 |
42.7733 | 13.1108 | 11 | 2021-09-04 21:41:54 |
Sala Sismica INGV-Roma | 95046051 |
Field | Value |
---|---|
Time (UTC) | 2021-09-04 21:32:54 ± 0.04 |
Latitude | 42.7733 ± 0.0027 |
Longitude | 13.1108 ± 0.0037 |
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 | 95046051 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 289 |
Semi-minor axis of confidence ellipse (meter) | 148 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 65 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 290.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 85 |
Number of associated phases, regardless of their use for origin computation | 22 |
Number of defining phases | 16 |
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) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.39210 |
Number of stations at which the event was observed | 13 |
Number of stations from which data was used for origin computation | 10 |
Field | Value |
---|---|
Value | 1.1 |
Uncertainty | 0.2 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 95046051 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-09-04 21:41:54 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.ARVD.HHZ. | 2021-09-04T21:33:18.79 | 3.0 | undecidable | manual | S | -0.08 | 0 | |||
IV.TOLF.HHZ. | 2021-09-04T21:33:16.59 | 3.0 | undecidable | manual | P | 2.18 | 0 | |||
IV.VIVA.HHZ. | 2021-09-04T21:33:14.40 | 3.0 | negative | manual | P | 0.12 | 0 | |||
IV.TERO.HHZ. | 2021-09-04T21:33:08.99 | 0.3 | undecidable | manual | S | 112 | 43.5231 | 90 | -0.03 | 72 |
IV.CSP1.EHZ. | 2021-09-04T21:33:07.12 | 0.6 | undecidable | manual | S | 12 | 36.1416 | 91 | 0.07 | 48 |
IV.CESI.HHZ. | 2021-09-04T21:33:05.41 | 0.3 | undecidable | manual | S | 327 | 30.6471 | 91 | -0.18 | 72 |
IV.FDMO.HHN. | 2021-09-04T21:33:04.99 | 0.6 | undecidable | manual | S | 356 | 29.2485 | 91 | -0.22 | 48 |
IV.MTRA.EHE. | 2021-09-04T21:33:03.51 | 0.3 | undecidable | manual | S | 94 | 23.3544 | 91 | -0.12 | 73 |
IV.MMO1.EHZ. | 2021-09-04T21:33:03.43 | 0.3 | undecidable | manual | S | 51 | 22.4553 | 91 | 0.04 | 75 |
IV.LNSS.HHE. | 2021-09-04T21:33:02.61 | 0.3 | undecidable | manual | S | 197 | 19.7691 | 92 | -0.07 | 74 |
IV.GAVE.EHZ. | 2021-09-04T21:33:02.59 | 0.6 | undecidable | manual | S | 243 | 19.869 | 92 | -0.1 | 49 |
IV.TERO.HHZ. | 2021-09-04T21:33:02.98 | 3.0 | undecidable | manual | P | 112 | 43.5231 | 90 | -0.09 | 0 |
IV.CSP1.EHZ. | 2021-09-04T21:33:01.69 | 3.0 | undecidable | manual | P | 12 | 36.1416 | 91 | -0.25 | 0 |
IV.CESI.HHZ. | 2021-09-04T21:33:01.54 | 1.0 | undecidable | manual | P | 327 | 30.6471 | 91 | 0.45 | 23 |
IV.FDMO.HHN. | 2021-09-04T21:33:00.10 | 3.0 | undecidable | manual | P | 356 | 29.2485 | 91 | -0.77 | 0 |
IV.NRCA.HHZ. | 2021-09-04T21:32:59.30 | 0.6 | undecidable | manual | S | 2 | 6.6933 | 139 | -0.18 | 50 |
IV.LNSS.HHE. | 2021-09-04T21:32:59.47 | 0.3 | undecidable | manual | P | 197 | 19.7691 | 92 | 0.06 | 75 |
IV.GAVE.EHZ. | 2021-09-04T21:32:59.62 | 0.6 | undecidable | manual | P | 243 | 19.869 | 92 | 0.2 | 49 |
IV.MTRA.EHE. | 2021-09-04T21:32:59.92 | 0.3 | undecidable | manual | P | 94 | 23.3544 | 91 | -0.04 | 75 |
IV.MMO1.EHZ. | 2021-09-04T21:32:59.87 | 0.3 | undecidable | manual | P | 51 | 22.4553 | 91 | 0.04 | 75 |
IV.MC2.EHE. | 2021-09-04T21:32:58.99 | 0.3 | undecidable | manual | P | 22 | 16.5723 | 94 | 0.07 | 75 |
IV.NRCA.HHZ. | 2021-09-04T21:32:57.72 | 0.1 | undecidable | manual | P | 2 | 6.6933 | 139 | 0.16 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHN. | ML:1.1 | 0.0001795 | 0.06 | AML | other | m | 2021-09-04T21:32:59.38 |
IV.NRCA.HHE. | ML:1.3 | 0.000284 | 0.1 | AML | other | m | 2021-09-04T21:32:59.53 |
IV.GAVE.EHN. | ML:0.8 | 0.0000485 | 0.28 | AML | other | m | 2021-09-04T21:33:03.10 |
IV.GAVE.EHE. | ML:0.7 | 0.000037449999999999995 | 0.5 | AML | other | m | 2021-09-04T21:33:03.02 |
IV.NRCA.HNE. | ML:1.3 | 0.00026189635 | 0.1024 | AML | other | m | 2021-09-04T21:32:59.53 |
IV.NRCA.HNN. | ML:1.0 | 0.0001332882675 | 0.064 | AML | other | m | 2021-09-04T21:32:59.39 |