A magnitude ML 1.1 earthquake occured in region: 4 km NW Arquata del Tronto (AP), on
and geographic coordinates (lat, lon) 42.7930, 13.2560 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 | 11 | 667 | 2368 |
Acquasanta Terme | AP | 13 | 2916 | 5284 |
Norcia | PG | 13 | 4957 | 10241 |
Montemonaco | AP | 13 | 604 | 10845 |
Castelsantangelo sul Nera | MC | 14 | 281 | 11126 |
Montefortino | FM | 18 | 1178 | 12304 |
Amatrice | RI | 18 | 2657 | 14961 |
Ussita | MC | 19 | 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 1.1 | 2020-07-21 00:17:18 |
42.7928 | 13.2555 | 11 | 2020-07-21 00:21:39 |
Sala Sismica INGV-Roma | 81204111 |
Field | Value |
---|---|
Time (UTC) | 2020-07-21 00:17:18 ± 0.03 |
Latitude | 42.7928 ± 0.0018 |
Longitude | 13.2555 ± 0.0037 |
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 | 81204111 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 337 |
Semi-minor axis of confidence ellipse (meter) | 113 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 86 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 340.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 86 |
Number of associated phases, regardless of their use for origin computation | 19 |
Number of defining phases | 19 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.1 |
Epicentral distance of station closest to the epicenter (degree) | 0.11152 |
Epicentral distance of station farthest from the epicenter (degree) | 0.54769 |
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 | 0.4 |
Num. used stations | 10 |
Type of magnitude | ML |
Reference to an origin | 81204111 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-07-21 00:21:39 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CSP1.EHZ. | 2020-07-21T00:17:30.29 | 0.6 | undecidable | manual | S | 353 | 33.4443 | 50 | 0.01 | 48 |
IV.RM33.EHZ. | 2020-07-21T00:17:29.72 | 0.6 | undecidable | manual | S | 186 | 31.6461 | 50 | -0.09 | 48 |
IV.EL6.EHZ. | 2020-07-21T00:17:29.73 | 1.0 | positive | manual | P | 348 | 60.7947 | 50 | 0.09 | 23 |
IV.LNSS.HNZ. | 2020-07-21T00:17:28.66 | 0.6 | undecidable | manual | S | 220 | 27.4503 | 50 | -0.01 | 49 |
IV.T1299.EHE. | 2020-07-21T00:17:26.09 | 0.6 | undecidable | manual | S | 173 | 17.7711 | 121 | 0.14 | 48 |
IV.MC2.EHZ. | 2020-07-21T00:17:25.04 | 0.6 | undecidable | manual | S | 338 | 14.2746 | 127 | 0.1 | 49 |
IV.RM33.EHZ. | 2020-07-21T00:17:25.06 | 1.0 | negative | manual | P | 186 | 31.6461 | 50 | -0.09 | 24 |
IV.GAVE.EHZ. | 2020-07-21T00:17:25.38 | 1.0 | undecidable | manual | P | 249 | 31.4463 | 50 | 0.26 | 23 |
IV.CSP1.EHZ. | 2020-07-21T00:17:25.29 | 0.3 | positive | manual | P | 353 | 33.4443 | 50 | -0.13 | 71 |
IV.TERO.HHZ. | 2020-07-21T00:17:25.32 | 1.0 | undecidable | manual | P | 123 | 34.1436 | 50 | -0.2 | 23 |
IV.MF5.EHZ. | 2020-07-21T00:17:24.79 | 1.0 | undecidable | manual | P | 37 | 27.2505 | 50 | 0.32 | 23 |
IV.LNSS.HNZ. | 2020-07-21T00:17:24.51 | 0.1 | undecidable | manual | P | 220 | 27.4503 | 50 | 0.02 | 98 |
IV.NRCA.HHZ. | 2020-07-21T00:17:24.16 | 0.6 | undecidable | manual | S | 292 | 12.3765 | 131 | -0.27 | 48 |
IV.MMO1.HNN. | 2020-07-21T00:17:24.49 | 0.6 | undecidable | manual | S | 26 | 13.1757 | 129 | -0.16 | 49 |
IV.T1299.EHE. | 2020-07-21T00:17:23.00 | 0.1 | undecidable | manual | P | 173 | 17.7711 | 121 | 0.08 | 98 |
IV.SMA1.EHE. | 2020-07-21T00:17:23.05 | 0.1 | undecidable | manual | P | 160 | 19.1697 | 119 | -0.12 | 97 |
IV.NRCA.HHZ. | 2020-07-21T00:17:22.07 | 0.1 | positive | manual | P | 292 | 12.3765 | 131 | 0.03 | 100 |
IV.MMO1.HNN. | 2020-07-21T00:17:22.19 | 0.1 | undecidable | manual | P | 26 | 13.1757 | 129 | 0.02 | 100 |
IV.MC2.EHZ. | 2020-07-21T00:17:22.47 | 0.3 | positive | manual | P | 338 | 14.2746 | 127 | 0.13 | 73 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HNN. | ML:1.8 | 0.000666 | 0.16 | AML | other | m | 2020-07-21T00:17:24.31 |
IV.NRCA.HNE. | ML:1.9 | 0.0008555 | 0.08 | AML | other | m | 2020-07-21T00:17:24.33 |
IV.NRCA.HHE. | ML:1.9 | 0.0009335 | 0.08 | AML | other | m | 2020-07-21T00:17:24.29 |
IV.NRCA.HHN. | ML:1.8 | 0.0006715 | 0.14 | AML | other | m | 2020-07-21T00:17:24.39 |
IV.GAVE.EHN. | ML:0.8 | 0.000028650000000000002 | 0.3 | AML | other | m | 2020-07-21T00:17:30.24 |
IV.RM33.EHE. | ML:0.9 | 0.00003705 | 0.7 | AML | other | m | 2020-07-21T00:17:30.26 |
IV.TERO.HHN. | ML:1.0 | 0.0000424 | 0.32 | AML | other | m | 2020-07-21T00:17:30.72 |
IV.RM33.EHN. | ML:0.9 | 0.000034149999999999997 | 0.7 | AML | other | m | 2020-07-21T00:17:30.43 |
IV.TERO.HHE. | ML:1.0 | 0.000043700000000000005 | 0.52 | AML | other | m | 2020-07-21T00:17:31.35 |
IV.GAVE.EHE. | ML:0.8 | 0.000030600000000000005 | 1.04 | AML | other | m | 2020-07-21T00:17:32.54 |