A magnitude ML 0.9 earthquake occured in region: 8 km NW Accumoli (RI), on
and geographic coordinates (lat, lon) 42.7490, 13.1840 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 | 8 | 667 | 667 |
Norcia | PG | 9 | 4957 | 5624 |
Arquata del Tronto | AP | 10 | 1178 | 6802 |
Cascia | PG | 14 | 3217 | 10019 |
Cittareale | RI | 15 | 482 | 10501 |
Amatrice | RI | 16 | 2657 | 13158 |
Montegallo | AP | 16 | 523 | 13681 |
Castelsantangelo sul Nera | MC | 17 | 281 | 13962 |
Acquasanta Terme | AP | 19 | 2916 | 16878 |
Preci | PG | 19 | 724 | 17602 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2021-08-04 01:36:08 |
42.7487 | 13.1837 | 10 | 2021-08-04 01:50:15 |
Sala Sismica INGV-Roma | 93645241 |
Field | Value |
---|---|
Time (UTC) | 2021-08-04 01:36:08 ± 0.06 |
Latitude | 42.7487 ± 0.0036 |
Longitude | 13.1837 ± 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 | 93645241 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 369 |
Semi-minor axis of confidence ellipse (meter) | 295 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 233 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 370.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 67 |
Number of associated phases, regardless of their use for origin computation | 21 |
Number of defining phases | 21 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.21 |
Epicentral distance of station closest to the epicenter (degree) | 0.09893 |
Epicentral distance of station farthest from the epicenter (degree) | 0.32735 |
Number of stations at which the event was observed | 12 |
Number of stations from which data was used for origin computation | 12 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.3 |
Num. used stations | 9 |
Type of magnitude | ML |
Reference to an origin | 93645241 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-08-04 01:50:15 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.FDMO.HHZ. | 2021-08-04T01:36:19.88 | 0.6 | undecidable | manual | S | 346 | 32.8449 | 50 | -0.06 | 50 |
IV.RM33.HNZ. | 2021-08-04T01:36:17.95 | 0.6 | undecidable | manual | S | 175 | 26.751 | 50 | -0.35 | 48 |
IV.GAVE.EHZ. | 2021-08-04T01:36:17.41 | 0.6 | undecidable | manual | S | 255 | 24.4533 | 112 | -0.15 | 50 |
IV.LNSS.HHZ. | 2021-08-04T01:36:16.11 | 0.6 | undecidable | manual | S | 216 | 19.9689 | 116 | -0.04 | 52 |
IV.MC2.EHZ. | 2021-08-04T01:36:15.72 | 0.6 | undecidable | manual | S | 1 | 18.0708 | 119 | 0.16 | 50 |
IV.CESI.HNE. | 2021-08-04T01:36:15.68 | 0.3 | undecidable | manual | P | 322 | 36.3414 | 50 | 0.06 | 75 |
IV.SMA1.EHZ. | 2021-08-04T01:36:15.72 | 0.6 | undecidable | manual | S | 137 | 18.0708 | 119 | 0.17 | 50 |
IT.MTCL.HGZ. | 2021-08-04T01:36:15.13 | 0.3 | undecidable | manual | P | 331 | 31.0467 | 50 | 0.33 | 71 |
IV.MF5.EHE. | 2021-08-04T01:36:15.66 | 0.3 | undecidable | manual | P | 40 | 34.743 | 50 | 0.29 | 71 |
IV.FDMO.HHZ. | 2021-08-04T01:36:14.46 | 0.3 | undecidable | manual | P | 346 | 32.8449 | 50 | -0.62 | 65 |
IV.RM33.HNZ. | 2021-08-04T01:36:14.12 | 0.3 | undecidable | manual | P | 175 | 26.751 | 50 | -0.01 | 77 |
IV.T1299.HNZ. | 2021-08-04T01:36:14.45 | 0.3 | undecidable | manual | S | 148 | 15.0738 | 123 | -0.21 | 75 |
IV.MTRA.HNZ. | 2021-08-04T01:36:14.99 | 0.6 | undecidable | manual | S | 87 | 17.3715 | 119 | -0.36 | 48 |
IV.NRCA.HHZ. | 2021-08-04T01:36:13.18 | 0.6 | undecidable | manual | S | 329 | 10.9779 | 132 | -0.36 | 49 |
IV.GAVE.EHZ. | 2021-08-04T01:36:13.84 | 0.3 | undecidable | manual | P | 255 | 24.4533 | 112 | 0.14 | 75 |
IV.MTRA.HNZ. | 2021-08-04T01:36:12.29 | 0.3 | undecidable | manual | P | 87 | 17.3715 | 119 | -0.13 | 76 |
IV.MC2.EHZ. | 2021-08-04T01:36:12.66 | 0.3 | undecidable | manual | P | 1 | 18.0708 | 119 | 0.11 | 76 |
IV.LNSS.HHZ. | 2021-08-04T01:36:12.97 | 0.3 | undecidable | manual | P | 216 | 19.9689 | 116 | 0.09 | 77 |
IV.SMA1.EHZ. | 2021-08-04T01:36:12.74 | 0.1 | undecidable | manual | P | 137 | 18.0708 | 119 | 0.2 | 100 |
IV.T1299.HNZ. | 2021-08-04T01:36:12.27 | 0.3 | undecidable | manual | P | 148 | 15.0738 | 123 | 0.25 | 75 |
IV.NRCA.HHZ. | 2021-08-04T01:36:11.38 | 0.3 | undecidable | manual | P | 329 | 10.9779 | 132 | 0 | 79 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHN. | ML:0.9 | 0.00010255512999999999 | 0.08 | AML | other | m | 2021-08-04T01:36:13.31 |
IV.NRCA.HHE. | ML:1.0 | 0.0001205 | 0.16 | AML | other | m | 2021-08-04T01:36:13.40 |
IV.GAVE.EHN. | ML:0.8 | 0.000042000000000000004 | 0.12 | AML | other | m | 2021-08-04T01:36:17.92 |
IV.GAVE.EHE. | ML:1.0 | 0.00005739999999999999 | 0.5 | AML | other | m | 2021-08-04T01:36:18.37 |
IV.NRCA.HNE. | ML:1.0 | 0.00012711051 | 0.1504 | AML | other | m | 2021-08-04T01:36:13.40 |
IV.NRCA.HNN. | ML:0.9 | 0.00010089722000000001 | 0.1096 | AML | other | m | 2021-08-04T01:36:15.29 |
IV.GAVE.HNE. | ML:1.2 | 0.00009003153999999999 | 0.62 | AML | other | m | 2021-08-04T01:36:17.45 |
IV.FDMO.HHE. | ML:0.1 | 0.00000502674 | 0.08 | AML | other | m | 2021-08-04T01:36:21.67 |
IV.FDMO.HHN. | ML:0.4 | 0.000008542144 | 0.24 | AML | other | m | 2021-08-04T01:36:20.95 |