A magnitude ML 1.2 earthquake occured in region: 9 km NW Arquata del Tronto (AP), on
and geographic coordinates (lat, lon) 42.8230, 13.2130 at 8 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 |
---|---|---|---|---|
Arquata del Tronto | AP | 9 | 1178 | 1178 |
Castelsantangelo sul Nera | MC | 9 | 281 | 1459 |
Montegallo | AP | 10 | 523 | 1982 |
Norcia | PG | 10 | 4957 | 6939 |
Montemonaco | AP | 13 | 604 | 7543 |
Accumoli | RI | 14 | 667 | 8210 |
Ussita | MC | 15 | 444 | 8654 |
Preci | PG | 16 | 724 | 9378 |
Visso | MC | 16 | 1107 | 10485 |
Acquasanta Terme | AP | 17 | 2916 | 13401 |
Montefortino | FM | 17 | 1178 | 14579 |
Bolognola | MC | 19 | 142 | 14721 |
Cascia | PG | 20 | 3217 | 17938 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.2 | 2021-10-18 05:59:37 |
42.8227 | 13.213 | 8 | 2021-10-18 06:08:52 |
Sala Sismica INGV-Roma | 96711531 |
Field | Value |
---|---|
Time (UTC) | 2021-10-18 05:59:37 ± 0.08 |
Latitude | 42.8227 ± 0.0036 |
Longitude | 13.2130 ± 0.0061 |
Depth (km) | 8 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 96711531 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 425 |
Semi-minor axis of confidence ellipse (meter) | 202 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 105 |
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) | 78 |
Number of associated phases, regardless of their use for origin computation | 28 |
Number of defining phases | 28 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.29 |
Epicentral distance of station closest to the epicenter (degree) | 0.07285 |
Epicentral distance of station farthest from the epicenter (degree) | 0.88223 |
Number of stations at which the event was observed | 14 |
Number of stations from which data was used for origin computation | 14 |
Field | Value |
---|---|
Value | 1.2 |
Uncertainty | 0.3 |
Num. used stations | 21 |
Type of magnitude | ML |
Reference to an origin | 96711531 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-10-18 06:08:52 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.SENI.EHZ. | 2021-10-18T06:00:06.00 | 0.6 | undecidable | manual | S | 1 | 97.9242 | 50 | -0.68 | 36 |
IV.EL6.EHZ. | 2021-10-18T05:59:56.54 | 0.3 | undecidable | manual | S | 351 | 56.8986 | 50 | 0.8 | 55 |
IV.SENI.EHZ. | 2021-10-18T05:59:54.70 | 0.6 | undecidable | manual | P | 1 | 97.9242 | 50 | 0.41 | 39 |
IV.TERO.HHZ. | 2021-10-18T05:59:50.48 | 0.6 | undecidable | manual | S | 125 | 38.8278 | 50 | -0.42 | 44 |
IV.EL6.EHZ. | 2021-10-18T05:59:48.17 | 0.1 | undecidable | manual | P | 351 | 56.8986 | 50 | 0.2 | 89 |
IV.CESI.HHZ. | 2021-10-18T05:59:48.88 | 0.3 | undecidable | manual | S | 309 | 32.2455 | 104 | 0.04 | 72 |
IV.LNSS.HHZ. | 2021-10-18T05:59:47.99 | 0.3 | undecidable | manual | S | 210 | 28.1496 | 105 | 0.51 | 66 |
IV.CSP1.EHZ. | 2021-10-18T05:59:47.85 | 0.3 | undecidable | manual | S | 359 | 29.8479 | 105 | -0.21 | 70 |
IV.GAVE.EHZ. | 2021-10-18T05:59:47.78 | 0.3 | undecidable | manual | S | 241 | 29.748 | 105 | -0.23 | 69 |
IV.MF5.EHZ. | 2021-10-18T05:59:47.89 | 0.3 | undecidable | manual | S | 47 | 27.1506 | 106 | 0.74 | 60 |
IV.GUMA.HHZ. | 2021-10-18T05:59:47.96 | 0.3 | undecidable | manual | S | 20 | 28.4493 | 105 | 0.38 | 67 |
IV.FDMO.HHZ. | 2021-10-18T05:59:46.53 | 0.6 | undecidable | manual | S | 337 | 25.8519 | 107 | -0.18 | 47 |
IV.SMA1.EHZ. | 2021-10-18T05:59:45.98 | 0.3 | undecidable | manual | S | 155 | 23.5542 | 108 | 0.03 | 73 |
IV.TERO.HHZ. | 2021-10-18T05:59:44.65 | 0.1 | undecidable | manual | P | 125 | 38.8278 | 50 | -0.52 | 85 |
IV.GUMA.HHZ. | 2021-10-18T05:59:43.17 | 0.1 | undecidable | manual | P | 20 | 28.4493 | 105 | -0.09 | 96 |
IV.LNSS.HHZ. | 2021-10-18T05:59:43.50 | 0.1 | undecidable | manual | P | 210 | 28.1496 | 105 | 0.3 | 92 |
IV.CSP1.EHZ. | 2021-10-18T05:59:43.21 | 0.1 | undecidable | manual | P | 359 | 29.8479 | 105 | -0.32 | 91 |
IV.GAVE.EHZ. | 2021-10-18T05:59:43.67 | 0.1 | undecidable | manual | P | 241 | 29.748 | 105 | 0.16 | 94 |
IV.CESI.HHZ. | 2021-10-18T05:59:43.66 | 0.1 | undecidable | manual | P | 309 | 32.2455 | 104 | -0.33 | 90 |
IV.MF5.EHZ. | 2021-10-18T05:59:43.27 | 0.1 | undecidable | manual | P | 47 | 27.1506 | 106 | 0.26 | 92 |
IV.SMA1.EHZ. | 2021-10-18T05:59:42.24 | 0.1 | undecidable | manual | P | 155 | 23.5542 | 108 | -0.08 | 97 |
IV.FDMO.HHZ. | 2021-10-18T05:59:42.65 | 0.1 | undecidable | manual | P | 337 | 25.8519 | 107 | -0.11 | 96 |
IV.MMO1.EHZ. | 2021-10-18T05:59:42.24 | 0.3 | undecidable | manual | S | 47 | 12.5763 | 122 | -0.24 | 71 |
IV.NRCA.HHZ. | 2021-10-18T05:59:41.14 | 0.3 | undecidable | manual | S | 279 | 8.0808 | 134 | -0.11 | 74 |
IV.MC2.EHZ. | 2021-10-18T05:59:41.75 | 0.6 | undecidable | manual | S | 349 | 10.0788 | 128 | -0.01 | 50 |
IV.MMO1.EHZ. | 2021-10-18T05:59:40.14 | 0.1 | undecidable | manual | P | 47 | 12.5763 | 122 | -0.17 | 97 |
IV.NRCA.HHZ. | 2021-10-18T05:59:39.64 | 0.1 | undecidable | manual | P | 279 | 8.0808 | 134 | 0.04 | 100 |
IV.MC2.EHZ. | 2021-10-18T05:59:39.87 | 0.1 | undecidable | manual | P | 349 | 10.0788 | 128 | -0.03 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HNN. | ML:1.8 | 0.0010499999999999997 | 0.08 | AML | other | m | 2021-10-18T05:59:41.61 |
IV.NRCA.HHN. | ML:1.8 | 0.0011105 | 0.34 | AML | other | m | 2021-10-18T05:59:41.61 |
IV.NRCA.HNE. | ML:1.8 | 0.0011125 | 1.88 | AML | other | m | 2021-10-18T05:59:41.01 |
IV.NRCA.HHE. | ML:1.9 | 0.00121 | 1.9 | AML | other | m | 2021-10-18T05:59:41.00 |
IV.FDMO.HHN. | ML:0.9 | 0.00004555 | 0.92 | AML | other | m | 2021-10-18T05:59:47.49 |
IV.GUMA.HHE. | ML:1.6 | 0.00022350000000000004 | 0.24 | AML | other | m | 2021-10-18T05:59:48.23 |
IV.GUMA.HHN. | ML:1.4 | 0.0001185 | 1.16 | AML | other | m | 2021-10-18T05:59:49.05 |
IV.GAVE.EHN. | ML:1.1 | 0.00006665000000000001 | 0.54 | AML | other | m | 2021-10-18T05:59:49.77 |
IV.GAVE.EHE. | ML:1.2 | 0.00006875 | 0.44 | AML | other | m | 2021-10-18T05:59:49.53 |
IV.FDMO.HHE. | ML:0.8 | 0.00003800000000000001 | 0.38 | AML | other | m | 2021-10-18T05:59:49.88 |
IV.CESI.HHN. | ML:1.2 | 0.00006585 | 0.18 | AML | other | m | 2021-10-18T05:59:50.36 |
IV.CESI.HHE. | ML:1.1 | 0.00005385 | 0.22 | AML | other | m | 2021-10-18T05:59:50.84 |
IV.LNSS.HHE. | ML:1.0 | 0.000049699999999999995 | 0.32 | AML | other | m | 2021-10-18T05:59:51.11 |
IV.SMA1.EHE. | ML:1.0 | 0.0000579 | 0.32 | AML | other | m | 2021-10-18T05:59:51.40 |
IV.LNSS.HHN. | ML:1.0 | 0.00005795 | 0.16 | AML | other | m | 2021-10-18T05:59:51.38 |
IV.SMA1.EHN. | ML:0.9 | 0.0000571 | 0.34 | AML | other | m | 2021-10-18T05:59:51.57 |
IV.CSP1.EHE. | ML:1.1 | 0.00006625981 | 0.16 | AML | other | m | 2021-10-18T05:59:48.30 |
IV.CSP1.EHN. | ML:1.3 | 0.000090457415 | 0.1984 | AML | other | m | 2021-10-18T05:59:49.91 |
IV.TERO.HHN. | ML:1.0 | 0.00003740023 | 0.0992 | AML | other | m | 2021-10-18T05:59:50.64 |
IV.EL6.EHE. | ML:1.0 | 0.00002192137 | 0.16 | AML | other | m | 2021-10-18T05:59:58.28 |
IV.EL6.EHN. | ML:1.1 | 0.000030333138 | 0.3008 | AML | other | m | 2021-10-18T05:59:59.65 |