A magnitude ML 1.1 earthquake occured in region: 4 km E Norcia (PG), on
and geographic coordinates (lat, lon) 42.8100, 13.1340 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 | 4 | 4957 | 4957 |
Castelsantangelo sul Nera | MC | 10 | 281 | 5238 |
Preci | PG | 11 | 724 | 5962 |
Arquata del Tronto | AP | 14 | 1178 | 7140 |
Cascia | PG | 14 | 3217 | 10357 |
Visso | MC | 14 | 1107 | 11464 |
Ussita | MC | 15 | 444 | 11908 |
Accumoli | RI | 16 | 667 | 12575 |
Montegallo | AP | 17 | 523 | 13098 |
Cerreto di Spoleto | PG | 18 | 1075 | 14173 |
Montemonaco | AP | 19 | 604 | 14777 |
Sellano | PG | 19 | 1079 | 15856 |
Poggiodomo | PG | 20 | 117 | 15973 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.1 | 2020-12-08 16:04:43 |
42.8097 | 13.1343 | 11 | 2020-12-08 16:11:00 |
Sala Sismica INGV-Roma | 85290691 |
Field | Value |
---|---|
Time (UTC) | 2020-12-08 16:04:43 ± 0.08 |
Latitude | 42.8097 ± 0.0045 |
Longitude | 13.1343 ± 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 | 85290691 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 646 |
Semi-minor axis of confidence ellipse (meter) | 430 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 129 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 650.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 96 |
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) | 0.15 |
Epicentral distance of station closest to the epicenter (degree) | 0.02788 |
Epicentral distance of station farthest from the epicenter (degree) | 0.28688 |
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 | 1.1 |
Uncertainty | 0.4 |
Num. used stations | 12 |
Type of magnitude | ML |
Reference to an origin | 85290691 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-12-08 16:11:00 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.FDMO.HHZ. | 2020-12-08T16:04:52.67 | 0.3 | undecidable | manual | S | 351 | 25.4523 | 50 | -0.13 | 73 |
IV.MMO1.EHZ. | 2020-12-08T16:04:50.67 | 0.3 | undecidable | manual | S | 58 | 18.5703 | 120 | -0.18 | 73 |
IV.MC2.EHZ. | 2020-12-08T16:04:49.22 | 0.3 | undecidable | manual | S | 21 | 12.0768 | 131 | 0.2 | 73 |
IV.CSP1.EHZ. | 2020-12-08T16:04:49.88 | 0.3 | positive | manual | P | 10 | 31.8459 | 50 | 0.05 | 73 |
IV.CESI.HHZ. | 2020-12-08T16:04:49.43 | 0.6 | undecidable | manual | P | 319 | 28.5492 | 50 | 0.1 | 49 |
IV.SMA1.EHZ. | 2020-12-08T16:04:48.90 | 1.0 | undecidable | manual | P | 140 | 25.752 | 50 | 0 | 25 |
IV.FDMO.HHZ. | 2020-12-08T16:04:48.79 | 0.1 | undecidable | manual | P | 351 | 25.4523 | 50 | -0.06 | 99 |
IV.GAVE.EHZ. | 2020-12-08T16:04:48.55 | 0.1 | undecidable | manual | P | 236 | 23.4543 | 50 | 0 | 100 |
IV.MMO1.EHZ. | 2020-12-08T16:04:47.74 | 0.3 | undecidable | manual | P | 58 | 18.5703 | 120 | 0.02 | 75 |
IV.NRCA.HHZ. | 2020-12-08T16:04:46.99 | 0.3 | undecidable | manual | S | 328 | 3.0969 | 164 | -0.27 | 73 |
IV.MC2.EHZ. | 2020-12-08T16:04:46.95 | 0.6 | positive | manual | P | 21 | 12.0768 | 131 | 0.29 | 48 |
IV.NRCA.HHZ. | 2020-12-08T16:04:45.77 | 0.3 | undecidable | manual | P | 328 | 3.0969 | 164 | 0.12 | 76 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHE. | ML:1.6 | 0.0006654957 | 0.0768 | AML | other | m | 2020-12-08T16:04:47.28 |
IV.NRCA.HHN. | ML:1.8 | 0.00119648355 | 0.1408 | AML | other | m | 2020-12-08T16:04:47.12 |
IV.NRCA.HNE. | ML:1.6 | 0.0006714338 | 0.0768 | AML | other | m | 2020-12-08T16:04:47.28 |
IV.NRCA.HNN. | ML:1.8 | 0.00109335855 | 0.128 | AML | other | m | 2020-12-08T16:04:47.13 |
IV.GAVE.EHE. | ML:1.0 | 0.000067579135 | 0.2944 | AML | other | m | 2020-12-08T16:04:53.38 |
IV.GAVE.EHN. | ML:1.0 | 0.00006021288 | 0.2304 | AML | other | m | 2020-12-08T16:04:53.32 |
IV.GAVE.HNE. | ML:1.4 | 0.00016037139000000001 | 0.4864 | AML | other | m | 2020-12-08T16:04:53.46 |
IV.FDMO.HHE. | ML:0.6 | 0.00002474679 | 0.2304 | AML | other | m | 2020-12-08T16:04:53.01 |
IV.FDMO.HHN. | ML:0.5 | 0.000021144335 | 0.1152 | AML | other | m | 2020-12-08T16:04:53.06 |
IV.SMA1.EHE. | ML:0.7 | 0.00003122921 | 0.1664 | AML | other | m | 2020-12-08T16:04:54.18 |
IV.CESI.HHE. | ML:0.8 | 0.000032362455 | 0.0896 | AML | other | m | 2020-12-08T16:04:54.16 |
IV.CESI.HHN. | ML:1.0 | 0.000050880385 | 0.3968 | AML | other | m | 2020-12-08T16:04:53.82 |