A magnitude ML 1.2 earthquake occured in region: 5 km E Accumoli (RI), on
and geographic coordinates (lat, lon) 42.6890, 13.3150 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 |
---|---|---|---|---|
Accumoli | RI | 6 | 667 | 667 |
Amatrice | RI | 7 | 2657 | 3324 |
Arquata del Tronto | AP | 10 | 1178 | 4502 |
Acquasanta Terme | AP | 12 | 2916 | 7418 |
Cittareale | RI | 15 | 482 | 7900 |
Campotosto | AQ | 15 | 542 | 8442 |
Valle Castellana | TE | 16 | 977 | 9419 |
Montegallo | AP | 17 | 523 | 9942 |
Rocca Santa Maria | TE | 17 | 537 | 10479 |
Cortino | TE | 18 | 656 | 11135 |
Capitignano | AQ | 19 | 665 | 11800 |
Montereale | AQ | 19 | 2581 | 14381 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.2 | 2021-08-20 10:57:49 |
42.6888 | 13.3147 | 8 | 2021-08-20 11:02:31 |
Sala Sismica INGV-Roma | 94411711 |
Field | Value |
---|---|
Time (UTC) | 2021-08-20 10:57:49 ± 0.06 |
Latitude | 42.6888 ± 0.0027 |
Longitude | 13.3147 ± 0.0049 |
Depth (km) | 8 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 94411711 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 429 |
Semi-minor axis of confidence ellipse (meter) | 272 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 125 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 430.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 124 |
Number of associated phases, regardless of their use for origin computation | 15 |
Number of defining phases | 14 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.17 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.41099 |
Number of stations at which the event was observed | 8 |
Number of stations from which data was used for origin computation | 7 |
Field | Value |
---|---|
Value | 1.2 |
Uncertainty | 0.2 |
Num. used stations | 18 |
Type of magnitude | ML |
Reference to an origin | 94411711 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-08-20 11:02:31 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CSP1.EHZ. | 2021-08-20T10:58:04.63 | 0.1 | undecidable | manual | S | 349 | 45.621 | 50 | -0.25 | 91 |
IV.MF5.EHZ. | 2021-08-20T10:58:02.35 | 0.3 | undecidable | manual | S | 20 | 35.2425 | 50 | 0.25 | 70 |
IV.MC2.EHZ. | 2021-08-20T10:57:59.26 | 0.3 | undecidable | manual | S | 338 | 26.751 | 107 | 0 | 74 |
IV.LNSS.HHZ. | 2021-08-20T10:57:58.54 | 0.3 | undecidable | manual | S | 247 | 24.3534 | 108 | 0.07 | 74 |
IV.CSP1.EHZ. | 2021-08-20T10:57:58.17 | 0.6 | undecidable | manual | P | 349 | 45.621 | 50 | -0.24 | 46 |
IV.RM33.EHZ. | 2021-08-20T10:57:57.59 | 0.1 | undecidable | manual | S | 202 | 21.5673 | 110 | 0.03 | 99 |
IV.MF5.EHZ. | 2021-08-20T10:57:56.81 | 0.1 | undecidable | manual | P | 20 | 35.2425 | 50 | 0 | 98 |
IV.MC2.EHZ. | 2021-08-20T10:57:55.36 | 0.1 | undecidable | manual | P | 338 | 26.751 | 107 | 0.19 | 95 |
IV.LNSS.HHZ. | 2021-08-20T10:57:54.59 | 0.1 | undecidable | manual | P | 247 | 24.3534 | 108 | -0.12 | 97 |
IV.RM33.EHZ. | 2021-08-20T10:57:54.24 | 0.1 | undecidable | manual | P | 202 | 21.5673 | 110 | 0.05 | 99 |
IV.TERO.HHZ. | 2021-08-20T10:57:54.41 | 3.0 | undecidable | manual | P | 0 | ||||
IV.MTRA.EHZ. | 2021-08-20T10:57:53.94 | 0.1 | undecidable | manual | S | 41 | 10.0788 | 129 | -0.1 | 100 |
IV.MTRA.EHZ. | 2021-08-20T10:57:52.25 | 0.1 | undecidable | manual | P | 41 | 10.0788 | 129 | 0.09 | 100 |
IV.SMA1.EHZ. | 2021-08-20T10:57:52.98 | 0.1 | undecidable | manual | S | 165 | 6.6933 | 140 | -0.22 | 98 |
IV.SMA1.EHZ. | 2021-08-20T10:57:51.86 | 0.1 | undecidable | manual | P | 165 | 6.6933 | 140 | 0.19 | 99 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.MTRA.EHN. | ML:1.3 | 0.0002857244 | 0.1984 | AML | other | m | 2021-08-20T10:57:54.27 |
IV.MTRA.EHE. | ML:1.2 | 0.0002399033 | 0.2816 | AML | other | m | 2021-08-20T10:57:54.44 |
IV.SMA1.EHE. | ML:1.1 | 0.00023159669999999998 | 0.1024 | AML | other | m | 2021-08-20T10:57:53.29 |
IV.SMA1.EHN. | ML:1.2 | 0.00026914995 | 0.1408 | AML | other | m | 2021-08-20T10:57:53.29 |
IV.MTRA.HNE. | ML:1.2 | 0.00023977520000000003 | 0.2112 | AML | other | m | 2021-08-20T10:57:54.88 |
IV.MTRA.HNN. | ML:1.3 | 0.0003037132 | 0.2048 | AML | other | m | 2021-08-20T10:57:54.37 |
IV.TERO.HHE. | ML:1.7 | 0.0003253493 | 0.32 | AML | other | m | 2021-08-20T10:58:09.53 |
IV.TERO.HHN. | ML:1.2 | 0.00011191407 | 0.0768 | AML | other | m | 2021-08-20T10:57:58.70 |
IV.TERO.HNE. | ML:1.1 | 0.0000787963715 | 0.1216 | AML | other | m | 2021-08-20T10:57:58.71 |
IV.TERO.HNN. | ML:1.3 | 0.000120337905 | 0.0704 | AML | other | m | 2021-08-20T10:57:58.69 |
IV.LNSS.HNE. | ML:1.7 | 0.00032266866 | 1.2608 | AML | other | m | 2021-08-20T10:58:08.78 |
IV.LNSS.HNN. | ML:1.5 | 0.00020507553500000004 | 0.8448 | AML | other | m | 2021-08-20T10:58:05.86 |
IV.LNSS.HHE. | ML:0.7 | 0.00003174552 | 0.096 | AML | other | m | 2021-08-20T10:58:00.58 |
IV.LNSS.HHN. | ML:0.6 | 0.000025993375 | 0.2368 | AML | other | m | 2021-08-20T10:58:01.12 |
IV.MF5.EHE. | ML:1.1 | 0.000052369975 | 1.1968 | AML | other | m | 2021-08-20T10:58:08.64 |
IV.MF5.EHN. | ML:1.2 | 0.000057501835 | 0.3776 | AML | other | m | 2021-08-20T10:58:02.61 |
IV.CSP1.EHE. | ML:1.2 | 0.000044567416 | 1.056 | AML | other | m | 2021-08-20T10:58:15.08 |
IV.CSP1.EHN. | ML:1.0 | 0.00002906704 | 0.7808 | AML | other | m | 2021-08-20T10:58:18.60 |