A magnitude ML 1.0 earthquake occured in region: 4 km NE Opi (AQ), on
and geographic coordinates (lat, lon) 41.8100, 13.8570 at 15 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 |
---|---|---|---|---|
Opi | AQ | 4 | 420 | 420 |
Pescasseroli | AQ | 6 | 2203 | 2623 |
Villetta Barrea | AQ | 7 | 653 | 3276 |
Civitella Alfedena | AQ | 9 | 296 | 3572 |
Scanno | AQ | 11 | 1847 | 5419 |
San Donato Val di Comino | FR | 12 | 2107 | 7526 |
Barrea | AQ | 13 | 726 | 8252 |
Villalago | AQ | 14 | 568 | 8820 |
Bisegna | AQ | 15 | 223 | 9043 |
Settefrati | FR | 16 | 728 | 9771 |
Alvito | FR | 17 | 2713 | 12484 |
Scontrone | AQ | 17 | 574 | 13058 |
Campoli Appennino | FR | 17 | 1725 | 14783 |
Alfedena | AQ | 17 | 864 | 15647 |
Rocca Pia | AQ | 17 | 178 | 15825 |
Gallinaro | FR | 18 | 1269 | 17094 |
Pescosolido | FR | 18 | 1555 | 18649 |
Picinisco | FR | 18 | 1218 | 19867 |
Posta Fibreno | FR | 18 | 1139 | 21006 |
Rivisondoli | AQ | 19 | 700 | 21706 |
Roccaraso | AQ | 19 | 1627 | 23333 |
Vicalvi | FR | 19 | 783 | 24116 |
Lecce nei Marsi | AQ | 20 | 1702 | 25818 |
Pescocostanzo | AQ | 20 | 1128 | 26946 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.0 | 2021-09-20 20:55:24 |
41.8102 | 13.857 | 15 | 2021-09-20 21:22:39 |
Sala Sismica INGV-Roma | 95677141 |
Field | Value |
---|---|
Time (UTC) | 2021-09-20 20:55:24 ± 0.1 |
Latitude | 41.8102 ± 0.0027 |
Longitude | 13.8570 ± 0.0048 |
Depth (km) | 15 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 95677141 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 361 |
Semi-minor axis of confidence ellipse (meter) | 223 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 50 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 360.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 70 |
Number of associated phases, regardless of their use for origin computation | 20 |
Number of defining phases | 20 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.18 |
Epicentral distance of station closest to the epicenter (degree) | 0.03957 |
Epicentral distance of station farthest from the epicenter (degree) | 0.42358 |
Number of stations at which the event was observed | 10 |
Number of stations from which data was used for origin computation | 10 |
Field | Value |
---|---|
Value | 1.0 |
Uncertainty | 0.0 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 95677141 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-09-20 21:22:39 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.T0110.HHN. | 2021-09-20T20:55:40.49 | 0.3 | undecidable | manual | S | 352 | 47.0196 | 96 | 0.47 | 65 |
IV.MIDA.HHZ. | 2021-09-20T20:55:37.63 | 0.3 | undecidable | manual | S | 119 | 37.8288 | 99 | 0.05 | 72 |
IV.LPEL.HHZ. | 2021-09-20T20:55:37.58 | 0.3 | undecidable | manual | S | 46 | 37.629 | 99 | 0.04 | 72 |
IV.RNI2.HHN. | 2021-09-20T20:55:35.07 | 0.6 | undecidable | manual | S | 116 | 27.1506 | 105 | 0.27 | 47 |
IT.SULP.HGE. | 2021-09-20T20:55:35.90 | 0.3 | undecidable | manual | S | 11 | 31.0467 | 102 | 0.09 | 72 |
IV.CERA.HNE. | 2021-09-20T20:55:34.56 | 0.3 | undecidable | manual | S | 150 | 27.0507 | 105 | -0.22 | 71 |
IV.VVLD.HHZ. | 2021-09-20T20:55:33.01 | 0.3 | undecidable | manual | S | 289 | 20.4684 | 113 | -0.09 | 74 |
IV.INTR.HHZ. | 2021-09-20T20:55:33.45 | 0.3 | undecidable | manual | S | 10 | 22.6551 | 109 | -0.21 | 71 |
IV.T0110.HHN. | 2021-09-20T20:55:33.56 | 0.1 | undecidable | manual | P | 352 | 47.0196 | 96 | -0.09 | 94 |
IV.LPEL.HHZ. | 2021-09-20T20:55:32.21 | 0.3 | undecidable | manual | P | 46 | 37.629 | 99 | -0.01 | 73 |
IV.POFI.HHZ. | 2021-09-20T20:55:31.98 | 0.3 | undecidable | manual | S | 229 | 15.7731 | 122 | -0.02 | 75 |
IT.SULP.HGE. | 2021-09-20T20:55:31.04 | 0.3 | undecidable | manual | P | 11 | 31.0467 | 102 | -0.19 | 71 |
IV.MIDA.HHZ. | 2021-09-20T20:55:31.94 | 0.1 | undecidable | manual | P | 119 | 37.8288 | 99 | -0.31 | 91 |
IV.RNI2.HHN. | 2021-09-20T20:55:31.00 | 0.1 | undecidable | manual | P | 116 | 27.1506 | 105 | 0.36 | 92 |
IV.CERA.HNE. | 2021-09-20T20:55:30.54 | 0.1 | undecidable | manual | P | 150 | 27.0507 | 105 | -0.09 | 97 |
IV.INTR.HHZ. | 2021-09-20T20:55:29.82 | 0.1 | undecidable | manual | P | 10 | 22.6551 | 109 | -0.16 | 96 |
IV.POFI.HHZ. | 2021-09-20T20:55:29.11 | 0.1 | positive | manual | P | 229 | 15.7731 | 122 | 0.09 | 99 |
IT.OPI.HGZ. | 2021-09-20T20:55:29.98 | 0.3 | undecidable | manual | S | 211 | 4.3956 | 160 | -0.06 | 75 |
IV.VVLD.HHZ. | 2021-09-20T20:55:29.63 | 0.1 | undecidable | manual | P | 289 | 20.4684 | 113 | -0.02 | 100 |
IT.OPI.HGZ. | 2021-09-20T20:55:28.05 | 0.1 | undecidable | manual | P | 211 | 4.3956 | 160 | 0.16 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.LPEL.HHE. | ML:1.0 | 0.00003945 | 1.04 | AML | other | m | 2021-09-20T20:55:38.90 |
IV.LPEL.HHN. | ML:1.0 | 0.000034250000000000006 | 0.56 | AML | other | m | 2021-09-20T20:55:40.90 |