A magnitude ML 1.1 earthquake occured in region: 5 km SW Scanno (AQ), on
and geographic coordinates (lat, lon) 41.8640, 13.8550 at 25 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 |
---|---|---|---|---|
Scanno | AQ | 5 | 1847 | 1847 |
Pescasseroli | AQ | 8 | 2203 | 4050 |
Villalago | AQ | 8 | 568 | 4618 |
Opi | AQ | 10 | 420 | 5038 |
Bisegna | AQ | 10 | 223 | 5261 |
Villetta Barrea | AQ | 11 | 653 | 5914 |
Rocca Pia | AQ | 13 | 178 | 6092 |
Civitella Alfedena | AQ | 13 | 296 | 6388 |
Pettorano sul Gizio | AQ | 15 | 1376 | 7764 |
Anversa degli Abruzzi | AQ | 15 | 341 | 8105 |
Lecce nei Marsi | AQ | 16 | 1702 | 9807 |
Barrea | AQ | 16 | 726 | 10533 |
Introdacqua | AQ | 17 | 2126 | 12659 |
Gioia dei Marsi | AQ | 17 | 1989 | 14648 |
San Donato Val di Comino | FR | 18 | 2107 | 16755 |
Rivisondoli | AQ | 18 | 700 | 17455 |
Bugnara | AQ | 18 | 1125 | 18580 |
Pescocostanzo | AQ | 18 | 1128 | 19708 |
Ortona dei Marsi | AQ | 18 | 542 | 20250 |
Roccaraso | AQ | 19 | 1627 | 21877 |
Villavallelonga | AQ | 19 | 919 | 22796 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.1 | 2021-12-31 00:02:10 |
41.8637 | 13.8553 | 25 | 2021-12-31 00:39:09 |
Sala Sismica INGV-Roma | 99173441 |
Field | Value |
---|---|
Time (UTC) | 2021-12-31 00:02:10 ± 0.27 |
Latitude | 41.8637 ± 0.0144 |
Longitude | 13.8553 ± 0.0169 |
Depth (km) | 25 ± 2 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 99173441 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1756 |
Semi-minor axis of confidence ellipse (meter) | 1024 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 224 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1760.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 136 |
Number of associated phases, regardless of their use for origin computation | 11 |
Number of defining phases | 11 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.26 |
Epicentral distance of station closest to the epicenter (degree) | 0.08903 |
Epicentral distance of station farthest from the epicenter (degree) | 0.37052 |
Number of stations at which the event was observed | 6 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 1.1 |
Uncertainty | 0.6 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 99173441 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-12-31 00:39:09 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.MIDA.HNZ. | 2021-12-31T00:02:24.77 | 0.3 | undecidable | manual | S | 127 | 41.1255 | 115 | 0.11 | 70 |
IV.CERA.HHE. | 2021-12-31T00:02:23.10 | 0.3 | undecidable | manual | S | 155 | 32.4453 | 122 | 0.5 | 65 |
IV.POFI.HHZ. | 2021-12-31T00:02:20.16 | 0.3 | undecidable | manual | S | 216 | 20.0688 | 137 | 0.13 | 73 |
IV.T0110.HHN. | 2021-12-31T00:02:19.17 | 0.6 | undecidable | manual | P | 351 | 41.1255 | 115 | 0.57 | 43 |
IV.VVLD.HHZ. | 2021-12-31T00:02:19.93 | 0.3 | undecidable | manual | S | 272 | 19.1697 | 138 | 0.07 | 75 |
IT.OPI.HGZ. | 2021-12-31T00:02:18.31 | 0.1 | undecidable | manual | S | 192 | 9.879 | 156 | -0.19 | 98 |
IV.MIDA.HNZ. | 2021-12-31T00:02:18.26 | 0.1 | undecidable | manual | P | 127 | 41.1255 | 115 | -0.35 | 90 |
IV.CERA.HHE. | 2021-12-31T00:02:17.33 | 0.3 | undecidable | manual | P | 155 | 32.4453 | 122 | -0.1 | 72 |
IV.VVLD.HHZ. | 2021-12-31T00:02:15.76 | 0.1 | undecidable | manual | P | 272 | 19.1697 | 138 | -0.09 | 98 |
IV.POFI.HHZ. | 2021-12-31T00:02:15.91 | 0.3 | undecidable | manual | P | 216 | 20.0688 | 137 | -0.03 | 75 |
IT.OPI.HGZ. | 2021-12-31T00:02:14.99 | 0.1 | undecidable | manual | P | 192 | 9.879 | 156 | -0.07 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VVLD.HNN. | ML:1.6 | 0.000168685555 | 0.76 | AML | other | m | 2021-12-31T00:02:30.53 |
IV.VVLD.HHE. | ML:0.7 | 0.00002271917 | 2.66 | AML | other | m | 2021-12-31T00:02:20.68 |