A magnitude ML 1.3 earthquake occured in region: 2 km W Arquata del Tronto (AP), on
and geographic coordinates (lat, lon) 42.7810, 13.2760 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 |
---|---|---|---|---|
Arquata del Tronto | AP | 2 | 1178 | 1178 |
Montegallo | AP | 8 | 523 | 1701 |
Accumoli | RI | 10 | 667 | 2368 |
Acquasanta Terme | AP | 11 | 2916 | 5284 |
Montemonaco | AP | 14 | 604 | 5888 |
Norcia | PG | 15 | 4957 | 10845 |
Castelsantangelo sul Nera | MC | 16 | 281 | 11126 |
Amatrice | RI | 17 | 2657 | 13783 |
Roccafluvione | AP | 19 | 2010 | 15793 |
Valle Castellana | TE | 19 | 977 | 16770 |
Montefortino | FM | 19 | 1178 | 17948 |
Palmiano | AP | 20 | 196 | 18144 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.3 | 2021-03-20 16:45:07 |
42.7807 | 13.2763 | 10 | 2021-03-20 16:50:45 |
Sala Sismica INGV-Roma | 88320961 |
Field | Value |
---|---|
Time (UTC) | 2021-03-20 16:45:07 ± 0.04 |
Latitude | 42.7807 ± 0.0027 |
Longitude | 13.2763 ± 0.0037 |
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 | 88320961 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 337 |
Semi-minor axis of confidence ellipse (meter) | 69 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 59 |
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) | 72 |
Number of associated phases, regardless of their use for origin computation | 21 |
Number of defining phases | 20 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.16 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.35253 |
Number of stations at which the event was observed | 11 |
Number of stations from which data was used for origin computation | 10 |
Field | Value |
---|---|
Value | 1.3 |
Uncertainty | 0.2 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 88320961 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-03-20 16:50:45 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CESI.HHZ. | 2021-03-20T16:45:20.40 | 0.6 | undecidable | manual | S | 310 | 39.1275 | 50 | -0.11 | 47 |
IV.CSP1.EHZ. | 2021-03-20T16:45:19.32 | 0.6 | undecidable | manual | S | 350 | 35.0427 | 50 | -0.09 | 48 |
IV.TERO.HHZ. | 2021-03-20T16:45:18.31 | 0.3 | undecidable | manual | S | 123 | 31.9458 | 50 | -0.28 | 70 |
IV.MF5.EHZ. | 2021-03-20T16:45:17.93 | 0.6 | undecidable | manual | S | 33 | 27.3504 | 50 | 0.56 | 44 |
IV.LNSS.HNN. | 2021-03-20T16:45:17.47 | 0.3 | undecidable | manual | S | 224 | 27.5502 | 50 | 0.05 | 73 |
IV.SMA1.EHE. | 2021-03-20T16:45:14.45 | 0.3 | undecidable | manual | S | 164 | 17.3715 | 121 | -0.01 | 75 |
IV.CSP1.EHZ. | 2021-03-20T16:45:14.10 | 0.1 | undecidable | manual | P | 350 | 35.0427 | 50 | -0.25 | 93 |
IV.MC2.EHZ. | 2021-03-20T16:45:14.14 | 0.3 | undecidable | manual | S | 334 | 16.1727 | 123 | 0.03 | 75 |
IV.CESI.HHZ. | 2021-03-20T16:45:14.84 | 0.3 | undecidable | manual | P | 310 | 39.1275 | 50 | -0.15 | 70 |
IV.LNSS.HNN. | 2021-03-20T16:45:13.40 | 0.3 | undecidable | manual | P | 224 | 27.5502 | 50 | 0.19 | 71 |
IV.MMO1.EHZ. | 2021-03-20T16:45:13.28 | 0.3 | undecidable | manual | S | 17 | 13.7751 | 127 | -0.16 | 74 |
IV.MF5.EHZ. | 2021-03-20T16:45:13.49 | 0.3 | undecidable | manual | P | 33 | 27.3504 | 50 | 0.31 | 70 |
IV.NRCA.HHZ. | 2021-03-20T16:45:13.58 | 0.3 | undecidable | manual | S | 294 | 14.4744 | 126 | -0.04 | 75 |
IV.TERO.HHZ. | 2021-03-20T16:45:13.79 | 0.3 | undecidable | manual | P | 123 | 31.9458 | 50 | -0.09 | 72 |
IV.MTRA.HNZ. | 2021-03-20T16:45:12.40 | 0.3 | undecidable | manual | S | 105 | 10.1787 | 136 | -0.08 | 75 |
IV.MC2.EHZ. | 2021-03-20T16:45:11.35 | 0.3 | undecidable | manual | P | 334 | 16.1727 | 123 | 0.05 | 75 |
IV.SMA1.EHE. | 2021-03-20T16:45:11.55 | 0.1 | undecidable | manual | P | 164 | 17.3715 | 121 | 0.05 | 100 |
IV.NRCA.HHZ. | 2021-03-20T16:45:11.07 | 0.1 | undecidable | manual | P | 294 | 14.4744 | 126 | 0.06 | 100 |
IV.MTRA.HNZ. | 2021-03-20T16:45:10.48 | 0.1 | undecidable | manual | P | 105 | 10.1787 | 136 | 0.12 | 99 |
IV.RM33.EHZ. | 2021-03-20T16:45:10.27 | 3.0 | undecidable | manual | P | 0.26 | 0 | |||
IV.MMO1.EHZ. | 2021-03-20T16:45:10.91 | 1.0 | undecidable | manual | P | 17 | 13.7751 | 127 | 0 | 25 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.MTRA.EHE. | ML:1.2 | 0.00019700000000000002 | 0.08 | AML | other | m | 2021-03-20T16:45:12.57 |
IV.MTRA.EHN. | ML:1.4 | 0.000277 | 0.82 | AML | other | m | 2021-03-20T16:45:12.46 |
IV.NRCA.HHE. | ML:1.4 | 0.0002705 | 0.1 | AML | other | m | 2021-03-20T16:45:13.72 |
IV.NRCA.HHN. | ML:1.6 | 0.00035099999999999997 | 0.6 | AML | other | m | 2021-03-20T16:45:14.65 |
IV.TERO.HHE. | ML:1.1 | 0.0000567 | 0.06 | AML | other | m | 2021-03-20T16:45:18.80 |
IV.TERO.HHN. | ML:1.2 | 0.0000705 | 0.06 | AML | other | m | 2021-03-20T16:45:18.84 |