A magnitude ML 1.1 earthquake occured in region: 7 km E Castelsantangelo sul Nera (MC), on
and geographic coordinates (lat, lon) 42.8660, 13.2340 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 |
---|---|---|---|---|
Castelsantangelo sul Nera | MC | 7 | 281 | 281 |
Montegallo | AP | 9 | 523 | 804 |
Montemonaco | AP | 9 | 604 | 1408 |
Arquata del Tronto | AP | 12 | 1178 | 2586 |
Ussita | MC | 12 | 444 | 3030 |
Montefortino | FM | 12 | 1178 | 4208 |
Visso | MC | 14 | 1107 | 5315 |
Norcia | PG | 14 | 4957 | 10272 |
Bolognola | MC | 14 | 142 | 10414 |
Preci | PG | 16 | 724 | 11138 |
Amandola | FM | 16 | 3629 | 14767 |
Acquasanta Terme | AP | 18 | 2916 | 17683 |
Comunanza | AP | 18 | 3166 | 20849 |
Palmiano | AP | 19 | 196 | 21045 |
Accumoli | RI | 19 | 667 | 21712 |
Acquacanina | MC | 19 | 121 | 21833 |
Roccafluvione | AP | 20 | 2010 | 23843 |
Sarnano | MC | 20 | 3264 | 27107 |
Fiastra | MC | 20 | 559 | 27666 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.1 | 2021-10-25 21:48:40 |
42.8658 | 13.2342 | 8 | 2021-10-25 21:53:01 |
Sala Sismica INGV-Roma | 96989141 |
Field | Value |
---|---|
Time (UTC) | 2021-10-25 21:48:40 ± 0.1 |
Latitude | 42.8658 ± 0.0018 |
Longitude | 13.2342 ± 0.0025 |
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 | 96989141 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 225 |
Semi-minor axis of confidence ellipse (meter) | 102 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 323 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 220.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 186 |
Number of associated phases, regardless of their use for origin computation | 10 |
Number of defining phases | 10 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.08 |
Epicentral distance of station closest to the epicenter (degree) | 0.05666 |
Epicentral distance of station farthest from the epicenter (degree) | 0.22663 |
Number of stations at which the event was observed | 5 |
Number of stations from which data was used for origin computation | 5 |
Field | Value |
---|---|
Value | 1.1 |
Uncertainty | 0.0 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 96989141 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-10-25 21:53:01 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CSP1.EHZ. | 2021-10-25T21:48:49.28 | 0.1 | undecidable | manual | S | 355 | 25.1526 | 107 | 0.03 | 97 |
IV.FDMO.HHZ. | 2021-10-25T21:48:48.33 | 0.1 | undecidable | manual | S | 328 | 22.3554 | 108 | 0 | 98 |
IV.CSP1.EHZ. | 2021-10-25T21:48:45.64 | 1.0 | undecidable | manual | P | 355 | 25.1526 | 107 | 0.24 | 23 |
IV.FDMO.HHZ. | 2021-10-25T21:48:44.65 | 1.0 | positive | manual | P | 328 | 22.3554 | 108 | -0.22 | 23 |
IV.MMO1.EHZ. | 2021-10-25T21:48:44.04 | 0.1 | undecidable | manual | S | 64 | 8.3805 | 132 | 0 | 100 |
IV.NRCA.HHZ. | 2021-10-25T21:48:44.66 | 0.1 | undecidable | manual | S | 250 | 10.3785 | 126 | 0.07 | 98 |
IV.MC2.EHZ. | 2021-10-25T21:48:43.50 | 0.1 | undecidable | manual | S | 324 | 6.2937 | 140 | -0.02 | 100 |
IV.NRCA.HHZ. | 2021-10-25T21:48:42.66 | 0.1 | positive | manual | P | 250 | 10.3785 | 126 | -0.05 | 99 |
IV.MMO1.EHZ. | 2021-10-25T21:48:42.43 | 0.6 | positive | manual | P | 64 | 8.3805 | 132 | 0.04 | 50 |
IV.MC2.EHZ. | 2021-10-25T21:48:41.99 | 0.6 | positive | manual | P | 324 | 6.2937 | 140 | -0.1 | 49 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHN. | ML:1.2 | 0.0001985 | 0.12 | AML | other | m | 2021-10-25T21:48:44.77 |
IV.NRCA.HHE. | ML:1.1 | 0.0001975 | 0.12 | AML | other | m | 2021-10-25T21:48:45.38 |