A magnitude ML 0.8 earthquake occured in region: 3 km NE Norcia (PG), on
and geographic coordinates (lat, lon) 42.8200, 13.1100 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 |
Preci | PG | 9 | 724 | 5681 |
Castelsantangelo sul Nera | MC | 9 | 281 | 5962 |
Visso | MC | 13 | 1107 | 7069 |
Cascia | PG | 14 | 3217 | 10286 |
Ussita | MC | 14 | 444 | 10730 |
Cerreto di Spoleto | PG | 16 | 1075 | 11805 |
Arquata del Tronto | AP | 16 | 1178 | 12983 |
Sellano | PG | 17 | 1079 | 14062 |
Accumoli | RI | 18 | 667 | 14729 |
Montegallo | AP | 18 | 523 | 15252 |
Poggiodomo | PG | 19 | 117 | 15369 |
Montemonaco | AP | 20 | 604 | 15973 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.8 | 2020-12-23 21:26:48 |
42.8203 | 13.1102 | 11 | 2020-12-23 21:31:55 |
Sala Sismica INGV-Roma | 85662031 |
Field | Value |
---|---|
Time (UTC) | 2020-12-23 21:26:48 ± 0.04 |
Latitude | 42.8203 ± 0.0018 |
Longitude | 13.1102 ± 0.0037 |
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 | 85662031 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 259 |
Semi-minor axis of confidence ellipse (meter) | 110 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 263 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 260.0 |
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 | 19 |
Number of defining phases | 18 |
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) | 0.01349 |
Epicentral distance of station farthest from the epicenter (degree) | 0.53869 |
Number of stations at which the event was observed | 10 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 0.8 |
Uncertainty | 0.3 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 85662031 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-12-23 21:31:55 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.TERO.HHZ. | 2020-12-23T21:27:03.08 | 0.3 | undecidable | manual | S | 118 | 45.8208 | 50 | 0.02 | 71 |
IV.FOSV.EHZ. | 2020-12-23T21:27:02.22 | 3.0 | undecidable | manual | P | 59.7957 | 3.23 | 0 | ||
IV.CSP1.EHZ. | 2020-12-23T21:26:59.37 | 0.6 | undecidable | manual | S | 14 | 31.0467 | 50 | 0.24 | 47 |
IV.SMA1.EHZ. | 2020-12-23T21:26:58.19 | 0.3 | undecidable | manual | S | 139 | 27.9498 | 50 | -0.1 | 73 |
IV.LNSS.HHZ. | 2020-12-23T21:26:57.42 | 0.3 | undecidable | manual | S | 193 | 24.753 | 50 | -0.02 | 74 |
IV.CESI.HHZ. | 2020-12-23T21:26:57.91 | 0.3 | undecidable | manual | S | 321 | 26.4513 | 50 | 0.02 | 74 |
IV.FDMO.HHZ. | 2020-12-23T21:26:57.18 | 0.3 | undecidable | manual | S | 356 | 24.0537 | 50 | -0.07 | 73 |
IV.GAVE.EHZ. | 2020-12-23T21:26:56.77 | 0.3 | undecidable | manual | S | 231 | 22.5552 | 50 | -0.09 | 73 |
IV.TERO.HHZ. | 2020-12-23T21:26:56.92 | 0.1 | undecidable | manual | P | 118 | 45.8208 | 50 | 0.08 | 94 |
IV.MMO1.EHZ. | 2020-12-23T21:26:55.92 | 0.3 | undecidable | manual | S | 63 | 19.6692 | 50 | -0.16 | 73 |
IV.SMA1.EHZ. | 2020-12-23T21:26:54.22 | 0.1 | undecidable | manual | P | 139 | 27.9498 | 50 | 0.14 | 96 |
IV.CSP1.EHZ. | 2020-12-23T21:26:54.35 | 0.1 | undecidable | manual | P | 14 | 31.0467 | 50 | -0.22 | 94 |
IV.FDMO.HHZ. | 2020-12-23T21:26:53.54 | 0.1 | undecidable | manual | P | 356 | 24.0537 | 50 | 0.05 | 98 |
IV.LNSS.HHZ. | 2020-12-23T21:26:53.59 | 0.1 | undecidable | manual | P | 193 | 24.753 | 50 | 0 | 99 |
IV.GAVE.EHZ. | 2020-12-23T21:26:53.24 | 0.3 | undecidable | manual | P | 231 | 22.5552 | 50 | -0.02 | 74 |
IV.CESI.HHZ. | 2020-12-23T21:26:53.92 | 0.1 | undecidable | manual | P | 321 | 26.4513 | 50 | 0.07 | 98 |
IV.MMO1.EHZ. | 2020-12-23T21:26:52.86 | 0.1 | undecidable | manual | P | 63 | 19.6692 | 50 | 0.05 | 99 |
IV.NRCA.HHZ. | 2020-12-23T21:26:51.96 | 0.3 | undecidable | manual | S | 13 | 1.4985 | 172 | -0.2 | 74 |
IV.NRCA.HHZ. | 2020-12-23T21:26:50.70 | 0.1 | undecidable | manual | P | 13 | 1.4985 | 172 | 0.16 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.GAVE.EHE. | ML:1.2 | 0.00009140000000000001 | 1.52 | AML | other | m | 2020-12-23T21:26:57.98 |
IV.GAVE.EHN. | ML:1.1 | 0.0000737 | 0.56 | AML | other | m | 2020-12-23T21:26:57.10 |
IV.LNSS.HHE. | ML:1.0 | 0.0000619 | 1.6 | AML | other | m | 2020-12-23T21:26:57.16 |
IV.LNSS.HHN. | ML:1.0 | 0.0000573 | 0.82 | AML | other | m | 2020-12-23T21:26:58.02 |
IV.SMA1.EHE. | ML:0.6 | 0.00002205 | 0.76 | AML | other | m | 2020-12-23T21:27:00.06 |
IV.SMA1.EHN. | ML:0.6 | 0.00001775 | 0.4 | AML | other | m | 2020-12-23T21:27:02.18 |
IV.TERO.HHE. | ML:0.2 | 0.000007225 | 0.78 | AML | other | m | 2020-12-23T21:27:04.40 |
IV.TERO.HHN. | ML:0.7 | 0.000013755 | 0.64 | AML | other | m | 2020-12-23T21:27:05.96 |