A magnitude ML 1.1 earthquake occured in region: 3 km E Norcia (PG), on
and geographic coordinates (lat, lon) 42.78, 13.13 at 6 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 | 12 | 3217 | 8174 |
Castelsantangelo sul Nera | MC | 12 | 281 | 8455 |
Preci | PG | 13 | 724 | 9179 |
Arquata del Tronto | AP | 14 | 1178 | 10357 |
Accumoli | RI | 14 | 667 | 11024 |
Visso | MC | 17 | 1107 | 12131 |
Cerreto di Spoleto | PG | 18 | 1075 | 13206 |
Poggiodomo | PG | 18 | 117 | 13323 |
Ussita | MC | 18 | 444 | 13767 |
Montegallo | AP | 18 | 523 | 14290 |
Cittareale | RI | 19 | 482 | 14772 |
Sellano | PG | 20 | 1079 | 15851 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.1 | 2020-12-24 20:48:54 |
42.79 | 13.13 | 6 | 2020-12-24 20:54:48 |
Sala Sismica INGV-Roma | 85688611 |
Field | Value |
---|---|
Time (UTC) | 2020-12-24 20:48:54 ± 0.14 |
Latitude | 42.79 ± 0.00 |
Longitude | 13.13 ± 0.01 |
Depth (km) | 6 ± 2 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 85688611 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 540 |
Semi-minor axis of confidence ellipse (meter) | 76 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 84 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 540 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 124 |
Number of associated phases, regardless of their use for origin computation | 18 |
Number of defining phases | 18 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.23 |
Epicentral distance of station closest to the epicenter (degree) | 0.04856 |
Epicentral distance of station farthest from the epicenter (degree) | 0.31656 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 1.1 |
Uncertainty | 0.1 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 85688611 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-12-24 20:54:48 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.MF5.EHZ. | 2020-12-24T20:49:07.12 | 0.6 | undecidable | manual | S | 50 | 0.3166 | 99 | 0.41 | 44 |
IV.CSP1.EHZ. | 2020-12-24T20:49:06.22 | 0.6 | undecidable | manual | S | 10 | 0.3112 | 99 | -0.3 | 45 |
IV.CESI.HHZ. | 2020-12-24T20:49:05.26 | 0.6 | undecidable | manual | S | 323 | 0.2734 | 101 | 0.19 | 46 |
IV.FDMO.HHZ. | 2020-12-24T20:49:04.27 | 0.6 | undecidable | manual | S | 353 | 0.2527 | 102 | -0.01 | 48 |
IV.SMA1.EHZ. | 2020-12-24T20:49:02.91 | 0.3 | undecidable | manual | S | 135 | 0.2176 | 103 | -0.06 | 72 |
IV.LNSS.HHZ. | 2020-12-24T20:49:02.19 | 0.6 | undecidable | manual | S | 199 | 0.1934 | 105 | 0.12 | 48 |
IV.MF5.EHZ. | 2020-12-24T20:49:01.53 | 1.0 | positive | manual | P | 50 | 0.3166 | 99 | 0.04 | 24 |
IV.MMO1.EHZ. | 2020-12-24T20:49:01.35 | 0.6 | undecidable | manual | S | 52 | 0.1853 | 106 | -0.42 | 45 |
IV.CESI.HHZ. | 2020-12-24T20:49:00.44 | 0.1 | undecidable | manual | P | 323 | 0.2734 | 101 | -0.1 | 94 |
IV.CSP1.EHZ. | 2020-12-24T20:49:00.58 | 1.0 | undecidable | manual | P | 10 | 0.3112 | 99 | -0.8 | 19 |
IV.MC2.EHZ. | 2020-12-24T20:49:00.35 | 0.6 | undecidable | manual | S | 20 | 0.134 | 111 | 0.47 | 45 |
IV.SMA1.EHZ. | 2020-12-24T20:48:59.39 | 0.1 | undecidable | manual | P | 135 | 0.2176 | 103 | 0.06 | 96 |
IV.FDMO.HHZ. | 2020-12-24T20:48:59.87 | 1.0 | negative | manual | P | 353 | 0.2527 | 102 | -0.22 | 23 |
IV.MMO1.EHZ. | 2020-12-24T20:48:58.26 | 0.6 | undecidable | manual | P | 52 | 0.1853 | 106 | -0.38 | 45 |
IV.LNSS.HHZ. | 2020-12-24T20:48:58.77 | 0.1 | undecidable | manual | P | 199 | 0.1934 | 105 | -0.03 | 97 |
IV.MC2.EHZ. | 2020-12-24T20:48:57.98 | 0.1 | undecidable | manual | P | 20 | 0.134 | 111 | 0.43 | 90 |
IV.NRCA.HHZ. | 2020-12-24T20:48:56.88 | 0.6 | undecidable | manual | S | 349 | 0.0486 | 136 | -0.21 | 48 |
IV.NRCA.HHZ. | 2020-12-24T20:48:55.92 | 0.1 | positive | manual | P | 349 | 0.0486 | 136 | -0.02 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.SMA1.EHE. | ML:1 | 6.335E-5 | 1.66 | AML | other | m | 2020-12-24T20:49:03.16 |
IV.LNSS.HHE. | ML:1.1 | 8.78E-5 | 0.36 | AML | other | m | 2020-12-24T20:49:03.99 |
IV.LNSS.HHN. | ML:1 | 8.12E-5 | 0.58 | AML | other | m | 2020-12-24T20:49:05.30 |
IV.CESI.HHN. | ML:1.2 | 8.085E-5 | 0.98 | AML | other | m | 2020-12-24T20:49:06.13 |
IV.CESI.HHE. | ML:1 | 4.64E-5 | 1.04 | AML | other | m | 2020-12-24T20:49:07.10 |
IV.SMA1.EHN. | ML:1 | 7.205E-5 | 1.56 | AML | other | m | 2020-12-24T20:49:10.04 |