A magnitude ML 1.4 earthquake occured in region: 2 km SW Alfedena (AQ), on
and geographic coordinates (lat, lon) 41.7220, 14.0170 at 18 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 |
---|---|---|---|---|
Alfedena | AQ | 2 | 864 | 864 |
Scontrone | AQ | 3 | 574 | 1438 |
Montenero Val Cocchiara | IS | 4 | 538 | 1976 |
Barrea | AQ | 5 | 726 | 2702 |
Pizzone | IS | 6 | 329 | 3031 |
Civitella Alfedena | AQ | 8 | 296 | 3327 |
Castel San Vincenzo | IS | 8 | 516 | 3843 |
Villetta Barrea | AQ | 10 | 653 | 4496 |
Rionero Sannitico | IS | 10 | 1118 | 5614 |
Cerro al Volturno | IS | 10 | 1281 | 6895 |
Castel di Sangro | AQ | 11 | 6538 | 13433 |
Scapoli | IS | 12 | 680 | 14113 |
Rocchetta a Volturno | IS | 12 | 1113 | 15226 |
Acquaviva d'Isernia | IS | 12 | 425 | 15651 |
San Biagio Saracinisco | FR | 14 | 349 | 16000 |
Forlì del Sannio | IS | 14 | 675 | 16675 |
Roccaraso | AQ | 15 | 1627 | 18302 |
Picinisco | FR | 15 | 1218 | 19520 |
Settefrati | FR | 15 | 728 | 20248 |
Colli a Volturno | IS | 15 | 1349 | 21597 |
San Pietro Avellana | IS | 16 | 503 | 22100 |
Fornelli | IS | 17 | 1909 | 24009 |
Opi | AQ | 17 | 420 | 24429 |
San Donato Val di Comino | FR | 17 | 2107 | 26536 |
Rivisondoli | AQ | 17 | 700 | 27236 |
Roccasicura | IS | 18 | 550 | 27786 |
Villa Latina | FR | 19 | 1241 | 29027 |
Montaquila | IS | 19 | 2456 | 31483 |
Pescocostanzo | AQ | 19 | 1128 | 32611 |
Gallinaro | FR | 19 | 1269 | 33880 |
Filignano | IS | 20 | 648 | 34528 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.4 | 2021-04-12 06:58:19 |
41.7223 | 14.0167 | 18 | 2021-07-12 16:55:08 |
Bollettino Sismico Italiano INGV | 89394831 |
Reviewed Rev100 |
ML 1.5 | 2021-04-12 06:58:19 |
41.7197 | 14.0112 | 20 | 2021-04-12 07:15:52 |
Sala Sismica INGV-Roma | 89032961 |
Field | Value |
---|---|
Time (UTC) | 2021-04-12 06:58:19 ± 0.14 |
Latitude | 41.7223 ± 0.0054 |
Longitude | 14.0167 ± 0.0060 |
Depth (km) | 18 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 89394831 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 659 |
Semi-minor axis of confidence ellipse (meter) | 146 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 196 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 660.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 117 |
Number of associated phases, regardless of their use for origin computation | 16 |
Number of defining phases | 16 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.25 |
Epicentral distance of station closest to the epicenter (degree) | 0.10342 |
Epicentral distance of station farthest from the epicenter (degree) | 0.33005 |
Number of stations at which the event was observed | 8 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 1.4 |
Uncertainty | 0.2 |
Num. used stations | 12 |
Type of magnitude | ML |
Reference to an origin | 89394831 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-04-23 11:03:20 |
Field | Value |
---|---|
Value | 1.5 |
Uncertainty | 0.2 |
Num. used stations | 12 |
Type of magnitude | ML |
Reference to an origin | 89032961 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-12 07:15:52 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.LRP.EHZ. | 2021-04-12T06:58:32.17 | 0.3 | undecidable | manual | S | 257 | 36.6411 | 105 | 0.27 | 68 |
IV.INTR.HHZ. | 2021-04-12T06:58:31.11 | 0.6 | undecidable | manual | S | 344 | 33.4443 | 107 | 0.03 | 48 |
IV.VVLD.HHZ. | 2021-04-12T06:58:31.77 | 0.6 | undecidable | manual | S | 297 | 36.4413 | 105 | -0.09 | 48 |
IV.POFI.HNZ. | 2021-04-12T06:58:29.04 | 0.6 | undecidable | manual | S | 269 | 25.2525 | 115 | -0.01 | 49 |
IV.MIDA.HHZ. | 2021-04-12T06:58:27.72 | 0.3 | undecidable | manual | S | 114 | 21.5673 | 120 | -0.46 | 66 |
IV.CERA.HHZ. | 2021-04-12T06:58:26.46 | 0.1 | undecidable | manual | S | 179 | 13.7751 | 135 | -0.06 | 99 |
IV.LRP.EHZ. | 2021-04-12T06:58:26.64 | 0.1 | undecidable | manual | P | 257 | 36.6411 | 105 | 0.01 | 96 |
IV.RNI2.HHZ. | 2021-04-12T06:58:26.87 | 0.6 | undecidable | manual | S | 101 | 11.4774 | 141 | 0.77 | 41 |
IT.OPI.HGZ. | 2021-04-12T06:58:26.73 | 0.3 | undecidable | manual | S | 291 | 16.5723 | 129 | -0.34 | 71 |
IV.INTR.HHZ. | 2021-04-12T06:58:26.12 | 0.1 | undecidable | manual | P | 344 | 33.4443 | 107 | -0.04 | 96 |
IV.VVLD.HHZ. | 2021-04-12T06:58:26.40 | 0.1 | undecidable | manual | P | 297 | 36.4413 | 105 | -0.21 | 92 |
IV.POFI.HNZ. | 2021-04-12T06:58:25.14 | 0.3 | undecidable | manual | P | 269 | 25.2525 | 115 | 0.16 | 71 |
IV.MIDA.HHZ. | 2021-04-12T06:58:24.36 | 0.1 | undecidable | manual | P | 114 | 21.5673 | 120 | -0.13 | 95 |
IV.CERA.HHZ. | 2021-04-12T06:58:23.55 | 0.1 | undecidable | manual | P | 179 | 13.7751 | 135 | 0.02 | 100 |
IV.RNI2.HHZ. | 2021-04-12T06:58:23.68 | 0.1 | undecidable | manual | P | 101 | 11.4774 | 141 | 0.4 | 93 |
IT.OPI.HGZ. | 2021-04-12T06:58:23.80 | 0.1 | undecidable | manual | P | 291 | 16.5723 | 129 | -0.04 | 99 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.RNI2.HNN. | ML:1.7 | 0.00036899999999999997 | 0.2 | AML | other | m | 2021-04-12T06:58:27.07 |
IV.RNI2.HHN. | ML:1.7 | 0.0003635 | 0.2 | AML | other | m | 2021-04-12T06:58:27.07 |
IV.RNI2.HHE. | ML:1.8 | 0.0005105 | 0.16 | AML | other | m | 2021-04-12T06:58:27.32 |
IV.RNI2.HNE. | ML:1.8 | 0.0004855 | 0.18 | AML | other | m | 2021-04-12T06:58:27.32 |
IV.CERA.HHE. | ML:1.3 | 0.0001385 | 0.64 | AML | other | m | 2021-04-12T06:58:27.56 |
IV.MIDA.HHN. | ML:1.2 | 0.000087 | 1.26 | AML | other | m | 2021-04-12T06:58:28.19 |
IV.CERA.HHN. | ML:1.2 | 0.0001129 | 0.7 | AML | other | m | 2021-04-12T06:58:28.66 |
IV.MIDA.HHE. | ML:1.2 | 0.00009745000000000001 | 0.66 | AML | other | m | 2021-04-12T06:58:29.48 |
IV.INTR.HHN. | ML:1.5 | 0.00011115 | 0.2 | AML | other | m | 2021-04-12T06:58:31.69 |
IV.INTR.HHE. | ML:1.4 | 0.0000995 | 1.38 | AML | other | m | 2021-04-12T06:58:31.23 |
IV.LRP.EHN. | ML:1.3 | 0.00006470000000000001 | 0.28 | AML | other | m | 2021-04-12T06:58:32.36 |
IV.LRP.EHE. | ML:1.4 | 0.00008685000000000001 | 0.26 | AML | other | m | 2021-04-12T06:58:32.40 |