A magnitude ML 0.5 earthquake occured in region: 1 km NW Arquata del Tronto (AP), on
and geographic coordinates (lat, lon) 42.7820, 13.2880 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 | 1 | 1178 | 1178 |
Montegallo | AP | 8 | 523 | 1701 |
Accumoli | RI | 10 | 667 | 2368 |
Acquasanta Terme | AP | 10 | 2916 | 5284 |
Montemonaco | AP | 14 | 604 | 5888 |
Norcia | PG | 16 | 4957 | 10845 |
Castelsantangelo sul Nera | MC | 17 | 281 | 11126 |
Amatrice | RI | 17 | 2657 | 13783 |
Roccafluvione | AP | 18 | 2010 | 15793 |
Valle Castellana | TE | 18 | 977 | 16770 |
Montefortino | FM | 19 | 1178 | 17948 |
Palmiano | AP | 19 | 196 | 18144 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.5 | 2023-04-21 22:46:06 |
42.782 | 13.2878 | 10 | 2023-04-21 22:52:06 |
Sala Sismica INGV-Roma | 116585341 |
Field | Value |
---|---|
Time (UTC) | 2023-04-21 22:46:06 ± 0.06 |
Latitude | 42.7820 ± 0.0027 |
Longitude | 13.2878 ± 0.0074 |
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 | 116585341 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 609 |
Semi-minor axis of confidence ellipse (meter) | 85 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 265 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 610.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 136 |
Number of associated phases, regardless of their use for origin computation | 14 |
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) | 0.12051 |
Epicentral distance of station farthest from the epicenter (degree) | 0.31566 |
Number of stations at which the event was observed | 7 |
Number of stations from which data was used for origin computation | 7 |
Field | Value |
---|---|
Value | 0.5 |
Uncertainty | 0.2 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 116585341 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-04-21 22:52:06 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.FDMO.HHZ. | 2023-04-21T22:46:18.14 | 0.6 | undecidable | manual | S | 330 | 32.6451 | 50 | -0.16 | 47 |
IV.CSP1.EHZ. | 2023-04-21T22:46:18.50 | 0.6 | undecidable | manual | S | 349 | 35.0427 | 50 | -0.44 | 44 |
IV.MF5.EHZ. | 2023-04-21T22:46:17.24 | 0.6 | undecidable | manual | S | 31 | 26.751 | 50 | 0.5 | 44 |
IV.RM33.EHZ. | 2023-04-21T22:46:17.93 | 0.3 | undecidable | manual | S | 191 | 30.8469 | 50 | 0.09 | 72 |
IV.SMA1.EHZ. | 2023-04-21T22:46:13.63 | 0.3 | undecidable | manual | S | 167 | 17.2716 | 120 | -0.16 | 73 |
IV.RM33.EHZ. | 2023-04-21T22:46:13.19 | 0.1 | undecidable | manual | P | 191 | 30.8469 | 50 | -0.02 | 98 |
IV.NRCA.HHZ. | 2023-04-21T22:46:13.32 | 0.6 | undecidable | manual | S | 292 | 15.2736 | 123 | 0.13 | 49 |
IV.FDMO.HHZ. | 2023-04-21T22:46:13.29 | 1.0 | negative | manual | P | 330 | 32.6451 | 50 | -0.18 | 24 |
IV.CSP1.EHZ. | 2023-04-21T22:46:13.63 | 1.0 | positive | manual | P | 349 | 35.0427 | 50 | -0.21 | 23 |
IV.MF5.EHZ. | 2023-04-21T22:46:12.69 | 0.6 | negative | manual | P | 31 | 26.751 | 50 | 0.11 | 48 |
IV.MMO1.EHZ. | 2023-04-21T22:46:12.51 | 0.6 | undecidable | manual | S | 14 | 13.3755 | 127 | -0.16 | 49 |
IV.MMO1.EHZ. | 2023-04-21T22:46:10.26 | 0.3 | positive | manual | P | 14 | 13.3755 | 127 | 0.04 | 75 |
IV.SMA1.EHZ. | 2023-04-21T22:46:10.84 | 0.1 | undecidable | manual | P | 167 | 17.2716 | 120 | -0.03 | 100 |
IV.NRCA.HHZ. | 2023-04-21T22:46:10.71 | 0.1 | negative | manual | P | 292 | 15.2736 | 123 | 0.19 | 97 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.MMO1.EHN. | ML:0.6 | 0.00003835 | 0.5 | AML | other | m | 2023-04-21T22:46:12.56 |
IV.MMO1.EHE. | ML:0.5 | 0.00003235000000000001 | 0.4 | AML | other | m | 2023-04-21T22:46:13.69 |
IV.SMA1.EHE. | ML:0.2 | 0.00001715 | 0.3 | AML | other | m | 2023-04-21T22:46:13.79 |
IV.SMA1.EHN. | ML:0.4 | 0.0000223 | 0.24 | AML | other | m | 2023-04-21T22:46:13.69 |
IV.NRCA.HHN. | ML:0.8 | 0.00006604999999999999 | 0.14 | AML | other | m | 2023-04-21T22:46:14.00 |
IV.NRCA.HHE. | ML:0.7 | 0.00004575 | 0.68 | AML | other | m | 2023-04-21T22:46:14.39 |