A magnitude ML 0.9 earthquake occured in region: 7 km NW Accumoli (RI), on
and geographic coordinates (lat, lon) 42.7440, 13.1900 at 10 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 |
---|---|---|---|---|
Accumoli | RI | 7 | 667 | 667 |
Arquata del Tronto | AP | 9 | 1178 | 1845 |
Norcia | PG | 10 | 4957 | 6802 |
Cittareale | RI | 14 | 482 | 7284 |
Cascia | PG | 15 | 3217 | 10501 |
Amatrice | RI | 15 | 2657 | 13158 |
Montegallo | AP | 16 | 523 | 13681 |
Castelsantangelo sul Nera | MC | 17 | 281 | 13962 |
Acquasanta Terme | AP | 18 | 2916 | 16878 |
Preci | PG | 20 | 724 | 17602 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2021-08-10 05:04:37 |
42.7437 | 13.1903 | 10 | 2021-08-10 05:08:44 |
Sala Sismica INGV-Roma | 93908931 |
Field | Value |
---|---|
Time (UTC) | 2021-08-10 05:04:37 ± 0.06 |
Latitude | 42.7437 ± 0.0027 |
Longitude | 13.1903 ± 0.0049 |
Depth (km) | 10 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 93908931 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 390 |
Semi-minor axis of confidence ellipse (meter) | 88 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 104 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 390.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 83 |
Number of associated phases, regardless of their use for origin computation | 17 |
Number of defining phases | 17 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.16 |
Epicentral distance of station closest to the epicenter (degree) | 0.10612 |
Epicentral distance of station farthest from the epicenter (degree) | 0.34804 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.2 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 93908931 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-08-10 05:08:44 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CSP1.EHZ. | 2021-08-10T05:04:50.68 | 0.6 | undecidable | manual | S | 2 | 38.628 | 50 | 0.25 | 46 |
IV.FDMO.HHZ. | 2021-08-10T05:04:48.88 | 0.6 | undecidable | manual | S | 346 | 33.5442 | 50 | -0.19 | 47 |
IV.GAVE.EHZ. | 2021-08-10T05:04:46.94 | 0.6 | undecidable | manual | S | 257 | 24.8529 | 112 | 0.23 | 47 |
IV.RM33.EHZ. | 2021-08-10T05:04:46.89 | 0.6 | undecidable | manual | S | 176 | 26.1516 | 50 | -0.19 | 48 |
IV.LNSS.HHZ. | 2021-08-10T05:04:45.28 | 0.6 | undecidable | manual | S | 218 | 19.869 | 117 | 0.14 | 49 |
IV.MC2.EHZ. | 2021-08-10T05:04:45.14 | 0.6 | undecidable | manual | S | 360 | 18.5703 | 118 | 0.38 | 46 |
IV.FDMO.HHZ. | 2021-08-10T05:04:44.14 | 1.0 | positive | manual | P | 346 | 33.5442 | 50 | 0 | 24 |
IV.CSP1.EHZ. | 2021-08-10T05:04:44.98 | 1.0 | undecidable | manual | P | 2 | 38.628 | 50 | 0.05 | 24 |
IV.MTRA.EHZ. | 2021-08-10T05:04:44.10 | 0.6 | undecidable | manual | S | 85 | 16.872 | 121 | -0.13 | 49 |
IV.NRCA.HHZ. | 2021-08-10T05:04:42.22 | 0.6 | undecidable | manual | S | 328 | 11.7771 | 131 | -0.56 | 44 |
IV.GAVE.EHZ. | 2021-08-10T05:04:42.84 | 0.6 | positive | manual | P | 257 | 24.8529 | 112 | 0.05 | 49 |
IV.RM33.EHZ. | 2021-08-10T05:04:42.86 | 0.6 | negative | manual | P | 176 | 26.1516 | 50 | -0.14 | 48 |
IV.LNSS.HHZ. | 2021-08-10T05:04:41.88 | 0.1 | undecidable | manual | P | 218 | 19.869 | 117 | 0 | 100 |
IV.MTRA.EHZ. | 2021-08-10T05:04:41.48 | 0.1 | undecidable | manual | P | 85 | 16.872 | 121 | 0.13 | 98 |
IV.MC2.EHZ. | 2021-08-10T05:04:41.64 | 0.1 | undecidable | manual | P | 360 | 18.5703 | 118 | -0.02 | 100 |
IV.SMA1.EHZ. | 2021-08-10T05:04:41.54 | 1.0 | undecidable | manual | P | 137 | 17.2716 | 120 | 0.12 | 25 |
IV.NRCA.HHZ. | 2021-08-10T05:04:40.44 | 0.1 | positive | manual | P | 328 | 11.7771 | 131 | -0.08 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHE. | ML:1.0 | 0.00010775 | 0.32 | AML | other | m | 2021-08-10T05:04:42.58 |
IV.NRCA.HHN. | ML:1.1 | 0.000143 | 0.12 | AML | other | m | 2021-08-10T05:04:42.45 |
IV.MTRA.EHE. | ML:1.0 | 0.0000811 | 0.1 | AML | other | m | 2021-08-10T05:04:44.69 |
IV.LNSS.HHE. | ML:1.0 | 0.0000816 | 0.16 | AML | other | m | 2021-08-10T05:04:45.38 |
IV.MTRA.EHN. | ML:0.9 | 0.000076 | 0.58 | AML | other | m | 2021-08-10T05:04:45.73 |
IV.LNSS.HHN. | ML:1.0 | 0.0000742 | 0.16 | AML | other | m | 2021-08-10T05:04:45.43 |
IV.SMA1.EHN. | ML:0.6 | 0.0000303 | 1.56 | AML | other | m | 2021-08-10T05:04:48.96 |
IV.SMA1.EHE. | ML:0.6 | 0.0000305 | 0.56 | AML | other | m | 2021-08-10T05:04:49.23 |