A magnitude ML 0.9 earthquake occured in region: 4 km W Arquata del Tronto (AP), on
and geographic coordinates (lat, lon) 42.7900, 13.2550 at 11 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 |
---|---|---|---|---|
Arquata del Tronto | AP | 4 | 1178 | 1178 |
Montegallo | AP | 9 | 523 | 1701 |
Accumoli | RI | 10 | 667 | 2368 |
Acquasanta Terme | AP | 13 | 2916 | 5284 |
Norcia | PG | 13 | 4957 | 10241 |
Montemonaco | AP | 14 | 604 | 10845 |
Castelsantangelo sul Nera | MC | 14 | 281 | 11126 |
Amatrice | RI | 18 | 2657 | 13783 |
Montefortino | FM | 19 | 1178 | 14961 |
Ussita | MC | 20 | 444 | 15405 |
Roccafluvione | AP | 20 | 2010 | 17415 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2021-06-04 21:59:15 |
42.7895 | 13.2548 | 11 | 2021-06-04 22:12:12 |
Sala Sismica INGV-Roma | 90803121 |
Field | Value |
---|---|
Time (UTC) | 2021-06-04 21:59:15 ± 0.06 |
Latitude | 42.7895 ± 0.0036 |
Longitude | 13.2548 ± 0.0049 |
Depth (km) | 11 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 90803121 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 420 |
Semi-minor axis of confidence ellipse (meter) | 367 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 49 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 420.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 47 |
Number of associated phases, regardless of their use for origin computation | 25 |
Number of defining phases | 25 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.25 |
Epicentral distance of station closest to the epicenter (degree) | 0.10882 |
Epicentral distance of station farthest from the epicenter (degree) | 0.34714 |
Number of stations at which the event was observed | 13 |
Number of stations from which data was used for origin computation | 13 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.4 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 90803121 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-06-04 22:12:12 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.TERO.HHZ. | 2021-06-04T21:59:26.20 | 0.3 | undecidable | manual | S | 123 | 33.9438 | 50 | -0.41 | 89 |
IV.GAVE.HNZ. | 2021-06-04T21:59:26.20 | 0.3 | undecidable | manual | S | 250 | 31.3464 | 50 | 0.29 | 92 |
IV.CSP1.EHZ. | 2021-06-04T21:59:26.34 | 0.3 | undecidable | manual | S | 353 | 33.744 | 50 | -0.23 | 92 |
IV.FDMO.HHZ. | 2021-06-04T21:59:25.40 | 0.3 | undecidable | manual | S | 334 | 30.6471 | 50 | -0.32 | 91 |
IV.MF5.EHZ. | 2021-06-04T21:59:25.54 | 0.3 | undecidable | manual | S | 37 | 27.5502 | 50 | 0.62 | 84 |
IV.LNSS.HHZ. | 2021-06-04T21:59:24.99 | 0.3 | undecidable | manual | S | 220 | 27.1506 | 50 | 0.2 | 94 |
IV.OFFI.HHZ. | 2021-06-04T21:59:23.25 | 0.3 | undecidable | manual | P | 65 | 38.5281 | 50 | 0.8 | 77 |
IV.SMA1.EHZ. | 2021-06-04T21:59:22.33 | 0.3 | undecidable | manual | S | 160 | 18.7701 | 50 | -0.25 | 94 |
IV.T1299.HNZ. | 2021-06-04T21:59:22.47 | 0.3 | undecidable | manual | S | 173 | 17.3715 | 50 | 0.28 | 94 |
IV.CSP1.EHZ. | 2021-06-04T21:59:21.35 | 0.3 | undecidable | manual | P | 353 | 33.744 | 50 | -0.36 | 90 |
IV.TERO.HHZ. | 2021-06-04T21:59:21.67 | 0.3 | undecidable | manual | P | 123 | 33.9438 | 50 | -0.06 | 96 |
IV.MMO1.EHZ. | 2021-06-04T21:59:21.06 | 0.3 | undecidable | manual | S | 26 | 13.4754 | 129 | -0.06 | 99 |
IV.GAVE.HNZ. | 2021-06-04T21:59:21.20 | 0.3 | undecidable | manual | P | 250 | 31.3464 | 50 | -0.13 | 95 |
IV.MC2.EHZ. | 2021-06-04T21:59:21.61 | 0.3 | undecidable | manual | S | 338 | 14.5743 | 127 | 0.2 | 96 |
IV.MF5.EHZ. | 2021-06-04T21:59:20.94 | 0.3 | undecidable | manual | P | 37 | 27.5502 | 50 | 0.18 | 94 |
IV.MTRA.EHZ. | 2021-06-04T21:59:20.65 | 0.3 | undecidable | manual | S | 107 | 12.0768 | 132 | -0.1 | 98 |
IV.LNSS.HHZ. | 2021-06-04T21:59:20.55 | 0.3 | undecidable | manual | P | 220 | 27.1506 | 50 | -0.14 | 95 |
IV.NRCA.HHZ. | 2021-06-04T21:59:20.89 | 0.3 | undecidable | manual | S | 293 | 12.4764 | 131 | 0.05 | 99 |
IV.FDMO.HHZ. | 2021-06-04T21:59:20.83 | 0.3 | undecidable | manual | P | 334 | 30.6471 | 50 | -0.4 | 90 |
IV.SMA1.EHZ. | 2021-06-04T21:59:19.34 | 0.3 | undecidable | manual | P | 160 | 18.7701 | 50 | -0.06 | 98 |
IV.T1299.HNZ. | 2021-06-04T21:59:19.29 | 0.3 | undecidable | manual | P | 173 | 17.3715 | 50 | 0.11 | 98 |
IV.MMO1.EHZ. | 2021-06-04T21:59:18.52 | 0.3 | undecidable | manual | P | 26 | 13.4754 | 129 | -0.05 | 99 |
IV.MC2.EHZ. | 2021-06-04T21:59:18.80 | 0.3 | undecidable | manual | P | 338 | 14.5743 | 127 | 0.06 | 99 |
IV.MTRA.EHZ. | 2021-06-04T21:59:18.27 | 0.3 | undecidable | manual | P | 107 | 12.0768 | 132 | -0.08 | 99 |
IV.NRCA.HHZ. | 2021-06-04T21:59:18.43 | 0.3 | undecidable | manual | P | 293 | 12.4764 | 131 | 0.02 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHE. | ML:1.3 | 0.0002055 | 1.9 | AML | other | m | 2021-06-04T21:59:21.95 |
IV.NRCA.HHN. | ML:1.4 | 0.00026000000000000003 | 1.9 | AML | other | m | 2021-06-04T21:59:21.03 |
IV.SMA1.EHN. | ML:0.5 | 0.000025349999999999996 | 0.2 | AML | other | m | 2021-06-04T21:59:22.63 |
IV.SMA1.EHE. | ML:0.4 | 0.000021249999999999998 | 0.64 | AML | other | m | 2021-06-04T21:59:23.39 |
IV.FDMO.HHE. | ML:0.5 | 0.00001685 | 0.16 | AML | other | m | 2021-06-04T21:59:25.60 |
IV.FDMO.HHN. | ML:0.8 | 0.000030550000000000004 | 0.2 | AML | other | m | 2021-06-04T21:59:25.69 |
IV.OFFI.HHE. | ML:1.0 | 0.00004105 | 0.5 | AML | other | m | 2021-06-04T21:59:30.40 |
IV.OFFI.HHN. | ML:1.0 | 0.00003985 | 0.78 | AML | other | m | 2021-06-04T21:59:30.49 |