A magnitude ML 0.8 earthquake occured in region: 8 km SE Castelsantangelo sul Nera (MC), on
and geographic coordinates (lat, lon) 42.8560, 13.2360 at 17 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 |
---|---|---|---|---|
Castelsantangelo sul Nera | MC | 8 | 281 | 281 |
Montegallo | AP | 8 | 523 | 804 |
Montemonaco | AP | 9 | 604 | 1408 |
Arquata del Tronto | AP | 11 | 1178 | 2586 |
Ussita | MC | 13 | 444 | 3030 |
Montefortino | FM | 13 | 1178 | 4208 |
Norcia | PG | 14 | 4957 | 9165 |
Visso | MC | 15 | 1107 | 10272 |
Bolognola | MC | 16 | 142 | 10414 |
Preci | PG | 16 | 724 | 11138 |
Amandola | FM | 17 | 3629 | 14767 |
Acquasanta Terme | AP | 17 | 2916 | 17683 |
Accumoli | RI | 18 | 667 | 18350 |
Comunanza | AP | 19 | 3166 | 21516 |
Palmiano | AP | 19 | 196 | 21712 |
Roccafluvione | AP | 20 | 2010 | 23722 |
Acquacanina | MC | 20 | 121 | 23843 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.8 | 2021-10-20 10:26:34 |
42.8563 | 13.236 | 17 | 2021-10-20 10:46:22 |
Sala Sismica INGV-Roma | 96798031 |
Field | Value |
---|---|
Time (UTC) | 2021-10-20 10:26:34 ± 0.1 |
Latitude | 42.8563 ± 0.0036 |
Longitude | 13.2360 ± 0.0086 |
Depth (km) | 17 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 96798031 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 632 |
Semi-minor axis of confidence ellipse (meter) | 424 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 257 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 630.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 137 |
Number of associated phases, regardless of their use for origin computation | 12 |
Number of defining phases | 12 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.1 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.35703 |
Number of stations at which the event was observed | 7 |
Number of stations from which data was used for origin computation | 7 |
Field | Value |
---|---|
Value | 0.8 |
Uncertainty | 0.3 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 96798031 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-10-20 10:46:22 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.T0110.HHZ. | 2021-10-20T10:27:01.75 | 0.6 | undecidable | manual | S | 0.22 | 1.08 | |||
IV.FOSV.EHZ. | 2021-10-20T10:26:52.91 | 0.6 | undecidable | manual | S | -0.43 | 1.08 | |||
IV.TERO.HHZ. | 2021-10-20T10:26:47.89 | 0.6 | undecidable | manual | S | 131 | 39.627 | 101 | -0.18 | 47 |
IV.CSP1.EHZ. | 2021-10-20T10:26:44.61 | 0.6 | undecidable | manual | S | 354 | 26.2515 | 110 | -0.02 | 49 |
IV.FDMO.HHZ. | 2021-10-20T10:26:43.76 | 0.3 | undecidable | manual | S | 329 | 23.3544 | 114 | -0.15 | 72 |
IV.TERO.HHZ. | 2021-10-20T10:26:42.62 | 0.6 | undecidable | manual | P | 131 | 39.627 | 101 | 0.12 | 47 |
IV.NRCA.HHE. | 2021-10-20T10:26:41.04 | 0.6 | undecidable | manual | S | 256 | 10.1787 | 142 | -0.06 | 50 |
IV.CSP1.EHZ. | 2021-10-20T10:26:40.51 | 0.6 | undecidable | manual | P | 354 | 26.2515 | 110 | 0 | 49 |
IV.MC2.EHZ. | 2021-10-20T10:26:40.81 | 0.6 | undecidable | manual | S | 328 | 7.1928 | 152 | 0.14 | 50 |
IV.FDMO.HHZ. | 2021-10-20T10:26:40.14 | 1.0 | negative | manual | P | 329 | 23.3544 | 114 | 0.04 | 25 |
IV.MC2.EHZ. | 2021-10-20T10:26:38.32 | 1.0 | undecidable | manual | P | 328 | 7.1928 | 152 | 0.1 | 25 |
IV.NRCA.HHE. | 2021-10-20T10:26:38.54 | 0.1 | undecidable | manual | P | 256 | 10.1787 | 142 | 0.06 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.FDMO.HHE. | ML:0.6 | 0.0000192 | 1.62 | AML | other | m | 2021-10-20T10:26:43.06 |
IV.FDMO.HHN. | ML:0.9 | 0.000037900000000000006 | 0.22 | AML | other | m | 2021-10-20T10:26:44.03 |
IV.TERO.HHN. | ML:0.7 | 0.00001655 | 0.66 | AML | other | m | 2021-10-20T10:26:48.35 |
IV.TERO.HHE. | ML:1.4 | 0.00007555000000000001 | 0.74 | AML | other | m | 2021-10-20T10:26:56.39 |