A magnitude ML 1.6 earthquake occured in region: 4 km N Norcia (PG), on
and geographic coordinates (lat, lon) 42.8280, 13.0940 at 11 km depth.
The earthquake was located by: Bollettino Sismico Italiano INGV.
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 |
Preci | PG | 7 | 724 | 5681 |
Castelsantangelo sul Nera | MC | 9 | 281 | 5962 |
Visso | MC | 12 | 1107 | 7069 |
Ussita | MC | 14 | 444 | 7513 |
Cascia | PG | 14 | 3217 | 10730 |
Cerreto di Spoleto | PG | 15 | 1075 | 11805 |
Sellano | PG | 15 | 1079 | 12884 |
Arquata del Tronto | AP | 18 | 1178 | 14062 |
Poggiodomo | PG | 18 | 117 | 14179 |
Accumoli | RI | 19 | 667 | 14846 |
Montegallo | AP | 20 | 523 | 15369 |
Vallo di Nera | PG | 20 | 364 | 15733 |
Monte Cavallo | MC | 20 | 145 | 15878 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.6 | 2020-12-02 00:49:43 |
42.8283 | 13.0943 | 11 | 2021-02-26 14:56:13 |
Bollettino Sismico Italiano INGV | 86012181 |
Reviewed Rev100 |
ML 1.6 | 2020-12-02 00:49:43 |
42.829 | 13.09 | 11 | 2020-12-02 00:53:56 |
Sala Sismica INGV-Roma | 85143541 |
Field | Value |
---|---|
Time (UTC) | 2020-12-02 00:49:43 ± 0.07 |
Latitude | 42.8283 ± 0.0027 |
Longitude | 13.0943 ± 0.0061 |
Depth (km) | 11 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 86012181 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 431 |
Semi-minor axis of confidence ellipse (meter) | 325 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 79 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 430.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 132 |
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) | 0.16 |
Epicentral distance of station closest to the epicenter (degree) | 0.01529 |
Epicentral distance of station farthest from the epicenter (degree) | 0.27519 |
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 | 1.6 |
Uncertainty | 0.1 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 85143541 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-12-02 00:53:56 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.1 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 86012181 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-01-04 11:50:23 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.SMA1.EHZ. | 2020-12-02T00:49:53.34 | 0.3 | undecidable | manual | S | 138 | 29.4483 | 91 | -0.19 | 69 |
IV.CSP1.EHZ. | 2020-12-02T00:49:53.94 | 0.3 | undecidable | manual | S | 17 | 30.5472 | 91 | 0.11 | 71 |
IV.T1299.EHZ. | 2020-12-02T00:49:52.98 | 0.3 | undecidable | manual | S | 145 | 26.4513 | 91 | 0.26 | 69 |
IV.LNSS.HHZ. | 2020-12-02T00:49:52.30 | 0.3 | undecidable | manual | S | 190 | 25.3524 | 92 | -0.15 | 70 |
IV.CESI.HHZ. | 2020-12-02T00:49:52.33 | 0.3 | undecidable | manual | S | 322 | 24.9528 | 92 | 0 | 72 |
IV.FDMO.HHZ. | 2020-12-02T00:49:51.61 | 0.3 | undecidable | manual | S | 359 | 23.0547 | 92 | -0.23 | 69 |
IV.MMO1.EHZ. | 2020-12-02T00:49:50.84 | 0.3 | undecidable | manual | S | 67 | 20.4684 | 93 | -0.3 | 69 |
IV.CSP1.EHZ. | 2020-12-02T00:49:49.37 | 0.1 | negative | manual | P | 17 | 30.5472 | 91 | 0.03 | 96 |
IV.SMA1.EHZ. | 2020-12-02T00:49:49.14 | 0.3 | undecidable | manual | P | 138 | 29.4483 | 91 | -0.03 | 71 |
IV.MC2.EHZ. | 2020-12-02T00:49:49.15 | 0.3 | undecidable | manual | S | 40 | 11.9769 | 113 | 0.24 | 71 |
IV.LNSS.HHZ. | 2020-12-02T00:49:48.56 | 0.1 | positive | manual | P | 190 | 25.3524 | 92 | 0.02 | 97 |
IV.CESI.HHZ. | 2020-12-02T00:49:48.56 | 0.1 | positive | manual | P | 322 | 24.9528 | 92 | 0.09 | 96 |
IV.T1299.EHZ. | 2020-12-02T00:49:48.77 | 0.3 | undecidable | manual | P | 145 | 26.4513 | 91 | 0.07 | 72 |
IV.FDMO.HHZ. | 2020-12-02T00:49:48.18 | 0.1 | positive | manual | P | 359 | 23.0547 | 92 | -0.01 | 96 |
IV.MMO1.EHZ. | 2020-12-02T00:49:47.74 | 0.1 | positive | manual | P | 67 | 20.4684 | 93 | -0.05 | 96 |
IV.MC2.EHZ. | 2020-12-02T00:49:46.73 | 0.1 | positive | manual | P | 40 | 11.9769 | 113 | 0.23 | 95 |
IV.NRCA.HHZ. | 2020-12-02T00:49:46.92 | 0.3 | undecidable | manual | S | 70 | 1.6983 | 169 | -0.27 | 71 |
IV.NRCA.HHZ. | 2020-12-02T00:49:45.59 | 0.1 | positive | manual | P | 70 | 1.6983 | 169 | 0.08 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHE. | ML:1.5 | 0.0005224328499999999 | 0.08 | AML | other | m | 2020-12-02T00:49:47.10 |
IV.NRCA.HNE. | ML:1.5 | 0.00047063899999999996 | 0.09 | AML | other | m | 2020-12-02T00:49:47.06 |
IV.NRCA.HNN. | ML:1.6 | 0.0006915000000000001 | 1.92 | AML | other | m | 2020-12-02T00:49:47.03 |
IV.NRCA.HHN. | ML:1.6 | 0.0007235000000000001 | 0.08 | AML | other | m | 2020-12-02T00:49:47.04 |