A magnitude ML 1.2 earthquake occured in region: 6 km W Montegallo (AP), on
and geographic coordinates (lat, lon) 42.8560, 13.2590 at 14 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 |
---|---|---|---|---|
Montegallo | AP | 6 | 523 | 523 |
Montemonaco | AP | 8 | 604 | 1127 |
Castelsantangelo sul Nera | MC | 10 | 281 | 1408 |
Arquata del Tronto | AP | 10 | 1178 | 2586 |
Montefortino | FM | 12 | 1178 | 3764 |
Ussita | MC | 14 | 444 | 4208 |
Norcia | PG | 15 | 4957 | 9165 |
Acquasanta Terme | AP | 16 | 2916 | 12081 |
Bolognola | MC | 16 | 142 | 12223 |
Amandola | FM | 16 | 3629 | 15852 |
Visso | MC | 16 | 1107 | 16959 |
Comunanza | AP | 17 | 3166 | 20125 |
Palmiano | AP | 17 | 196 | 20321 |
Roccafluvione | AP | 18 | 2010 | 22331 |
Accumoli | RI | 18 | 667 | 22998 |
Preci | PG | 18 | 724 | 23722 |
Venarotta | AP | 19 | 2066 | 25788 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.2 | 2021-10-20 05:57:44 |
42.8562 | 13.2587 | 14 | 2021-10-20 06:25:58 |
Sala Sismica INGV-Roma | 96789231 |
Field | Value |
---|---|
Time (UTC) | 2021-10-20 05:57:44 ± 0.23 |
Latitude | 42.8562 ± 0.0090 |
Longitude | 13.2587 ± 0.0098 |
Depth (km) | 14 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 96789231 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 862 |
Semi-minor axis of confidence ellipse (meter) | 722 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 193 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 860.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 209 |
Number of associated phases, regardless of their use for origin computation | 32 |
Number of defining phases | 9 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.15 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.56927 |
Number of stations at which the event was observed | 26 |
Number of stations from which data was used for origin computation | 5 |
Field | Value |
---|---|
Value | 1.2 |
Uncertainty | 0.3 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 96789231 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-10-20 06:25:58 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.SPS2.HHZ. | 2021-10-20T05:59:35.47 | 3.0 | undecidable | manual | Sg | 13.69 | 0 | |||
IV.AGLI.HHZ. | 2021-10-20T05:59:28.57 | 3.0 | undecidable | manual | Sg | 19.190001 | 0 | |||
IV.USI.HHZ. | 2021-10-20T05:59:26.22 | 3.0 | undecidable | manual | Sg | 8.58 | 0 | |||
IV.SARZ.HHZ. | 2021-10-20T05:59:24.27 | 3.0 | undecidable | manual | Sn | -1.82 | 0 | |||
IV.ZEN8.EHZ. | 2021-10-20T05:59:22.15 | 3.0 | undecidable | manual | Sn | 3.46 | 0 | |||
IV.VENL.EHZ. | 2021-10-20T05:59:12.69 | 3.0 | undecidable | manual | Sg | 9.76 | 0 | |||
IV.NOCI.HHZ. | 2021-10-20T05:59:12.12 | 3.0 | undecidable | manual | Sg | 5.52 | 0 | |||
IV.TDS.HHZ. | 2021-10-20T05:59:08.73 | 3.0 | undecidable | manual | Sn | -5.86 | 0 | |||
IV.SIRI.HNZ. | 2021-10-20T05:59:02.33 | 3.0 | undecidable | manual | Sn | 3.2 | 0 | |||
IV.SBPO.HNZ. | 2021-10-20T05:58:59.69 | 3.0 | undecidable | manual | Sn | -5.15 | 0 | |||
IV.SGO.HHZ. | 2021-10-20T05:58:54.78 | 3.0 | undecidable | manual | Sg | 9.43 | 0 | |||
SI.ROSI.HHZ. | 2021-10-20T05:58:48.54 | 3.0 | negative | manual | Pn | 0.73 | 0 | |||
IV.SARZ.HHZ. | 2021-10-20T05:58:39.78 | 3.0 | negative | manual | Pn | 1.4 | 0 | |||
IV.MTMR.EHZ. | 2021-10-20T05:58:35.01 | 3.0 | undecidable | manual | Sn | 0 | 0 | |||
IV.IMTC.HHZ. | 2021-10-20T05:58:26.75 | 3.0 | undecidable | manual | Sn | -2.99 | 0 | |||
OT.OT17.EHZ. | 2021-10-20T05:58:12.25 | 3.0 | undecidable | manual | Pg | 6.14 | 0 | |||
IV.TST02.HHZ. | 2021-10-20T05:58:10.67 | 3.0 | undecidable | manual | S | 1.95 | 0 | |||
IV.MTL1.HNZ. | 2021-10-20T05:58:08.92 | 3.0 | undecidable | manual | S | 0.58 | 0 | |||
IV.PP3.EHZ. | 2021-10-20T05:58:01.65 | 3.0 | undecidable | manual | P | 4.98 | 0 | |||
IV.LPEL.HHZ. | 2021-10-20T05:57:59.99 | 3.0 | undecidable | manual | S | -3.4 | 0 | |||
IV.RNI2.HHZ. | 2021-10-20T05:57:56.23 | 3.0 | negative | manual | P | 0.6 | 0 | |||
IV.FOSV.EHZ. | 2021-10-20T05:57:56.05 | 0.6 | undecidable | manual | P | 321 | 63.1923 | 94 | 0.25 | 87 |
IV.TST02.HHZ. | 2021-10-20T05:57:54.72 | 3.0 | undecidable | manual | P | -0.19 | 0 | |||
IV.GIUL.HHZ. | 2021-10-20T05:57:54.03 | 3.0 | negative | manual | P | 0.07 | 0 | |||
IV.CSP1.EHZ. | 2021-10-20T05:57:54.02 | 0.6 | undecidable | manual | S | 351 | 26.4513 | 103 | -0.24 | 93 |
IV.MC2.EHZ. | 2021-10-20T05:57:50.29 | 0.6 | undecidable | manual | S | 317 | 8.3805 | 143 | 0.22 | 96 |
IV.NRCA.HHZ. | 2021-10-20T05:57:50.56 | 0.6 | undecidable | manual | S | 258 | 11.9769 | 130 | -0.19 | 94 |
IV.MMO1.EHZ. | 2021-10-20T05:57:49.89 | 0.6 | undecidable | manual | S | 49 | 7.2927 | 147 | -0.03 | 100 |
IV.CSP1.EHZ. | 2021-10-20T05:57:49.98 | 1.0 | negative | manual | P | 351 | 26.4513 | 103 | -0.2 | 47 |
IV.NRCA.HHZ. | 2021-10-20T05:57:48.16 | 0.6 | undecidable | manual | P | 258 | 11.9769 | 130 | 0 | 99 |
IV.MMO1.EHZ. | 2021-10-20T05:57:47.63 | 0.6 | undecidable | manual | P | 49 | 7.2927 | 147 | -0.05 | 100 |
IV.MC2.EHZ. | 2021-10-20T05:57:47.90 | 0.6 | undecidable | manual | P | 317 | 8.3805 | 143 | 0.13 | 98 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHE. | ML:0.9 | 0.00006819999999999999 | 0.44 | AML | other | m | 2021-10-20T05:57:50.67 |
IV.NRCA.HHN. | ML:1.0 | 0.00008925 | 1.14 | AML | other | m | 2021-10-20T05:57:51.15 |
IV.ARVD.HHE. | ML:1.5 | 0.00004615 | 0.2 | AML | other | m | 2021-10-20T05:58:19.96 |
IV.ARVD.HHN. | ML:1.3 | 0.0000323 | 0.06 | AML | other | m | 2021-10-20T05:58:23.11 |