A magnitude ML 1.1 earthquake occured in region: 6 km NE Accumoli (RI), on
and geographic coordinates (lat, lon) 42.7210, 13.3100 at 12 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 |
Arquata del Tronto | AP | 6 | 1178 | 1845 |
Acquasanta Terme | AP | 10 | 2916 | 4761 |
Amatrice | RI | 10 | 2657 | 7418 |
Montegallo | AP | 14 | 523 | 7941 |
Valle Castellana | TE | 16 | 977 | 8918 |
Cittareale | RI | 17 | 482 | 9400 |
Rocca Santa Maria | TE | 18 | 537 | 9937 |
Campotosto | AQ | 19 | 542 | 10479 |
Norcia | PG | 19 | 4957 | 15436 |
Cortino | TE | 20 | 656 | 16092 |
Montemonaco | AP | 20 | 604 | 16696 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.1 | 2021-07-23 20:57:26 |
42.7212 | 13.3097 | 12 | 2021-07-23 21:03:52 |
Sala Sismica INGV-Roma | 93120881 |
Field | Value |
---|---|
Time (UTC) | 2021-07-23 20:57:26 ± 0.05 |
Latitude | 42.7212 ± 0.0027 |
Longitude | 13.3097 ± 0.0049 |
Depth (km) | 12 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 93120881 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 367 |
Semi-minor axis of confidence ellipse (meter) | 164 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 271 |
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) | 69 |
Number of associated phases, regardless of their use for origin computation | 20 |
Number of defining phases | 20 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.15 |
Epicentral distance of station closest to the epicenter (degree) | 0.07285 |
Epicentral distance of station farthest from the epicenter (degree) | 0.37861 |
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 | 1.1 |
Uncertainty | 0.1 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 93120881 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-07-23 21:03:52 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.LNSS.HNE. | 2021-07-23T20:57:35.34 | 0.6 | undecidable | manual | S | 239 | 25.5522 | 95 | 0.04 | 50 |
IV.RM33.EHZ. | 2021-07-23T20:57:35.11 | 0.6 | undecidable | manual | S | 198 | 24.753 | 95 | 0.02 | 50 |
IV.TERO.HHZ. | 2021-07-23T20:57:35.10 | 0.6 | undecidable | manual | S | 114 | 26.3514 | 95 | -0.41 | 46 |
IV.MC2.EHZ. | 2021-07-23T20:57:34.81 | 0.6 | undecidable | manual | S | 335 | 23.2545 | 96 | 0.12 | 48 |
IV.MMO1.EHZ. | 2021-07-23T20:57:33.75 | 0.6 | undecidable | manual | S | 4 | 19.869 | 99 | -0.03 | 50 |
IV.CSP1.EHZ. | 2021-07-23T20:57:33.78 | 0.1 | undecidable | manual | P | 348 | 42.0246 | 92 | -0.12 | 94 |
IV.NRCA.HHZ. | 2021-07-23T20:57:33.62 | 0.6 | undecidable | manual | S | 308 | 20.2686 | 98 | -0.27 | 47 |
IV.MF5.EHZ. | 2021-07-23T20:57:32.69 | 0.1 | undecidable | manual | P | 22 | 32.0457 | 93 | 0.32 | 91 |
IV.TERO.HHZ. | 2021-07-23T20:57:31.33 | 0.6 | undecidable | manual | P | 114 | 26.3514 | 95 | -0.17 | 48 |
IV.SMA1.EHZ. | 2021-07-23T20:57:31.21 | 0.6 | undecidable | manual | S | 168 | 10.2786 | 126 | -0.19 | 49 |
IV.LNSS.HNE. | 2021-07-23T20:57:31.34 | 0.1 | undecidable | manual | P | 239 | 25.5522 | 95 | -0.03 | 98 |
IV.MC2.EHZ. | 2021-07-23T20:57:31.08 | 0.6 | positive | manual | P | 335 | 23.2545 | 96 | 0.05 | 49 |
IV.RM33.EHZ. | 2021-07-23T20:57:31.21 | 0.1 | undecidable | manual | P | 198 | 24.753 | 95 | -0.04 | 98 |
IV.MMO1.EHZ. | 2021-07-23T20:57:30.45 | 0.1 | undecidable | manual | P | 4 | 19.869 | 99 | -0.04 | 100 |
IV.MTRA.EHZ. | 2021-07-23T20:57:30.89 | 0.6 | undecidable | manual | S | 61 | 8.0808 | 136 | -0.08 | 51 |
IV.NRCA.HHZ. | 2021-07-23T20:57:30.44 | 0.1 | undecidable | manual | P | 308 | 20.2686 | 98 | -0.12 | 98 |
IV.CAMP.HHZ. | 2021-07-23T20:57:30.84 | 0.1 | undecidable | manual | P | 158 | 22.0668 | 97 | 0 | 100 |
IV.MTRA.EHZ. | 2021-07-23T20:57:29.00 | 0.6 | undecidable | manual | P | 61 | 8.0808 | 136 | 0.13 | 49 |
IV.T1299.EHN. | 2021-07-23T20:57:29.30 | 0.1 | undecidable | manual | P | 193 | 9.879 | 128 | 0.22 | 97 |
IV.SMA1.EHZ. | 2021-07-23T20:57:29.27 | 0.3 | undecidable | manual | P | 168 | 10.2786 | 126 | 0.15 | 74 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.MTRA.EHE. | ML:1.1 | 0.000153 | 1.58 | AML | other | m | 2021-07-23T20:57:30.98 |
IV.MTRA.EHN. | ML:1.1 | 0.0001555 | 1.6 | AML | other | m | 2021-07-23T20:57:31.97 |
IV.SMA1.EHE. | ML:1.0 | 0.0001225 | 0.16 | AML | other | m | 2021-07-23T20:57:31.62 |
IV.SMA1.EHN. | ML:1.1 | 0.00014050000000000003 | 0.12 | AML | other | m | 2021-07-23T20:57:31.77 |
IV.NRCA.HHN. | ML:1.2 | 0.000121 | 0.1 | AML | other | m | 2021-07-23T20:57:33.76 |
IV.NRCA.HHE. | ML:1.2 | 0.00010499999999999999 | 1 | AML | other | m | 2021-07-23T20:57:34.22 |