A magnitude ML 0.5 earthquake occured in region: 2 km N Castelsantangelo sul Nera (MC), on
and geographic coordinates (lat, lon) 42.9180, 13.1560 at 15 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 | 3 | 281 | 281 |
Ussita | MC | 3 | 444 | 725 |
Visso | MC | 6 | 1107 | 1832 |
Bolognola | MC | 10 | 142 | 1974 |
Preci | PG | 10 | 724 | 2698 |
Acquacanina | MC | 13 | 121 | 2819 |
Fiastra | MC | 13 | 559 | 3378 |
Montemonaco | AP | 14 | 604 | 3982 |
Fiordimonte | MC | 14 | 202 | 4184 |
Norcia | PG | 15 | 4957 | 9141 |
Monte Cavallo | MC | 15 | 145 | 9286 |
Montefortino | FM | 15 | 1178 | 10464 |
Pieve Torina | MC | 17 | 1458 | 11922 |
Montegallo | AP | 17 | 523 | 12445 |
Pievebovigliana | MC | 17 | 866 | 13311 |
Sarnano | MC | 18 | 3264 | 16575 |
Amandola | FM | 18 | 3629 | 20204 |
Sellano | PG | 19 | 1079 | 21283 |
Arquata del Tronto | AP | 20 | 1178 | 22461 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.5 | 2021-09-20 23:50:41 |
42.9177 | 13.1558 | 15 | 2021-09-21 00:08:38 |
Sala Sismica INGV-Roma | 95678331 |
Field | Value |
---|---|
Time (UTC) | 2021-09-20 23:50:41 ± 0.18 |
Latitude | 42.9177 ± 0.0072 |
Longitude | 13.1558 ± 0.0074 |
Depth (km) | 15 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 95678331 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 628 |
Semi-minor axis of confidence ellipse (meter) | 487 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 34 |
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) | 104 |
Number of associated phases, regardless of their use for origin computation | 14 |
Number of defining phases | 14 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.22 |
Epicentral distance of station closest to the epicenter (degree) | 0.02518 |
Epicentral distance of station farthest from the epicenter (degree) | 0.23292 |
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 | 0.5 |
Uncertainty | 0.3 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 95678331 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-09-21 00:08:38 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.MF5.EHZ. | 2021-09-20T23:50:51.97 | 0.3 | undecidable | manual | S | 72 | 25.8519 | 106 | 0.5 | 66 |
IV.CSP1.EHZ. | 2021-09-20T23:50:49.82 | 0.3 | undecidable | manual | S | 12 | 19.7691 | 114 | -0.11 | 74 |
IT.MTCL.HGE. | 2021-09-20T23:50:49.09 | 0.3 | undecidable | manual | S | 304 | 15.2736 | 124 | 0.21 | 72 |
IV.MMO1.EHZ. | 2021-09-20T23:50:48.26 | 0.3 | undecidable | manual | S | 98 | 14.0748 | 127 | -0.36 | 70 |
IV.FDMO.HHZ. | 2021-09-20T23:50:48.52 | 0.3 | undecidable | manual | S | 337 | 14.2746 | 126 | -0.16 | 74 |
IV.MC2.EHZ. | 2021-09-20T23:50:47.19 | 0.3 | undecidable | manual | S | 104 | 2.7972 | 167 | 0.24 | 73 |
IV.NRCA.HHE. | 2021-09-20T23:50:47.71 | 0.3 | undecidable | manual | S | 200 | 9.879 | 139 | -0.1 | 74 |
IV.MF5.EHZ. | 2021-09-20T23:50:47.57 | 0.1 | undecidable | manual | P | 72 | 25.8519 | 106 | 0.13 | 96 |
IT.MTCL.HGE. | 2021-09-20T23:50:46.00 | 0.1 | undecidable | manual | P | 304 | 15.2736 | 124 | 0.05 | 99 |
IV.CSP1.EHZ. | 2021-09-20T23:50:46.43 | 0.1 | undecidable | manual | P | 12 | 19.7691 | 114 | -0.13 | 98 |
IV.MMO1.EHZ. | 2021-09-20T23:50:45.54 | 0.1 | undecidable | manual | P | 98 | 14.0748 | 127 | -0.26 | 95 |
IV.NRCA.HHE. | 2021-09-20T23:50:45.29 | 0.1 | undecidable | manual | P | 200 | 9.879 | 139 | -0.04 | 100 |
IV.FDMO.HHZ. | 2021-09-20T23:50:45.77 | 0.1 | undecidable | manual | P | 337 | 14.2746 | 126 | -0.06 | 100 |
IV.MC2.EHZ. | 2021-09-20T23:50:44.95 | 0.1 | undecidable | manual | P | 104 | 2.7972 | 167 | 0.12 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.FDMO.HHE. | ML:0.3 | 0.000012550419999999999 | 0.1024 | AML | other | m | 2021-09-20T23:50:49.09 |
IV.FDMO.HHN. | ML:0.3 | 0.000017264701 | 0.1536 | AML | other | m | 2021-09-20T23:50:48.88 |
IV.CSP1.EHE. | ML:0.8 | 0.00003766220500000001 | 0.0896 | AML | other | m | 2021-09-20T23:50:50.27 |
IV.CSP1.EHN. | ML:0.7 | 0.0000287762055 | 0 | AML | other | m | 2021-09-20T23:50:50.08 |