A magnitude ML 1.0 earthquake occured in region: 7 km SE Arquata del Tronto (AP), on
and geographic coordinates (lat, lon) 42.7210, 13.3340 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 | 7 | 1178 | 1178 |
Accumoli | RI | 8 | 667 | 1845 |
Acquasanta Terme | AP | 8 | 2916 | 4761 |
Amatrice | RI | 11 | 2657 | 7418 |
Montegallo | AP | 14 | 523 | 7941 |
Valle Castellana | TE | 14 | 977 | 8918 |
Rocca Santa Maria | TE | 16 | 537 | 9455 |
Cortino | TE | 18 | 656 | 10111 |
Cittareale | RI | 18 | 482 | 10593 |
Campotosto | AQ | 18 | 542 | 11135 |
Roccafluvione | AP | 20 | 2010 | 13145 |
Montemonaco | AP | 20 | 604 | 13749 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.0 | 2021-04-10 22:26:45 |
42.7213 | 13.3338 | 11 | 2021-04-10 22:31:55 |
Sala Sismica INGV-Roma | 88985571 |
Field | Value |
---|---|
Time (UTC) | 2021-04-10 22:26:45 ± 0.05 |
Latitude | 42.7213 ± 0.0027 |
Longitude | 13.3338 ± 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 | 88985571 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 433 |
Semi-minor axis of confidence ellipse (meter) | 283 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 74 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 430.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 103 |
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) | 0.12 |
Epicentral distance of station closest to the epicenter (degree) | 0.05846 |
Epicentral distance of station farthest from the epicenter (degree) | 0.38221 |
Number of stations at which the event was observed | 8 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 1.0 |
Uncertainty | 0.3 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 88985571 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-10 22:31:55 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.FDMO.HHZ. | 2021-04-10T22:26:58.59 | 0.6 | undecidable | manual | S | 330 | 40.3263 | 50 | 0.25 | 47 |
IV.TERO.HHZ. | 2021-04-10T22:26:54.00 | 0.6 | undecidable | manual | S | 116 | 24.5532 | 50 | -0.15 | 49 |
IV.RM33.EHZ. | 2021-04-10T22:26:54.43 | 0.6 | undecidable | manual | S | 202 | 25.4523 | 50 | 0.04 | 50 |
IV.NRCA.HHZ. | 2021-04-10T22:26:53.17 | 0.6 | undecidable | manual | S | 305 | 21.7671 | 50 | -0.23 | 49 |
IV.CSP1.EHZ. | 2021-04-10T22:26:53.14 | 0.6 | negative | manual | P | 346 | 42.4242 | 50 | 0.07 | 48 |
IV.FDMO.HHZ. | 2021-04-10T22:26:52.65 | 0.6 | positive | manual | P | 330 | 40.3263 | 50 | -0.09 | 48 |
IV.TERO.HHZ. | 2021-04-10T22:26:50.39 | 0.6 | undecidable | manual | P | 116 | 24.5532 | 50 | 0.07 | 50 |
IV.RM33.EHZ. | 2021-04-10T22:26:50.53 | 1.0 | undecidable | manual | P | 202 | 25.4523 | 50 | 0.07 | 25 |
IV.SMA1.EHZ. | 2021-04-10T22:26:50.06 | 0.6 | undecidable | manual | S | 179 | 10.0788 | 137 | -0.17 | 50 |
IV.MMO1.EHZ. | 2021-04-10T22:26:49.60 | 0.3 | positive | manual | P | 358 | 19.7691 | 50 | 0.03 | 76 |
IV.MTRA.EHZ. | 2021-04-10T22:26:49.30 | 0.6 | undecidable | manual | S | 52 | 6.4935 | 149 | -0.18 | 50 |
IV.NRCA.HHZ. | 2021-04-10T22:26:49.80 | 0.1 | negative | manual | P | 305 | 21.7671 | 50 | -0.09 | 100 |
IV.SMA1.EHZ. | 2021-04-10T22:26:48.24 | 0.3 | negative | manual | P | 179 | 10.0788 | 137 | 0.19 | 75 |
IV.MTRA.EHZ. | 2021-04-10T22:26:47.79 | 0.6 | undecidable | manual | P | 52 | 6.4935 | 149 | 0.17 | 51 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.MTRA.EHE. | ML:1.2 | 0.0002395 | 1.04 | AML | other | m | 2021-04-10T22:26:49.34 |
IV.MTRA.EHN. | ML:1.2 | 0.00025 | 0.14 | AML | other | m | 2021-04-10T22:26:49.33 |
IV.SMA1.EHN. | ML:1.2 | 0.000185 | 0.32 | AML | other | m | 2021-04-10T22:26:50.20 |
IV.SMA1.EHE. | ML:1.0 | 0.0001255 | 0.1 | AML | other | m | 2021-04-10T22:26:50.21 |
IV.NRCA.HHN. | ML:1.0 | 0.000058099999999999996 | 0.08 | AML | other | m | 2021-04-10T22:26:53.23 |
IV.NRCA.HHE. | ML:1.0 | 0.0000752 | 0.1 | AML | other | m | 2021-04-10T22:26:53.34 |
IV.TERO.HHN. | ML:0.6 | 0.00002385 | 0.96 | AML | other | m | 2021-04-10T22:26:54.83 |
IV.TERO.HHE. | ML:0.5 | 0.000021150000000000002 | 0.18 | AML | other | m | 2021-04-10T22:26:55.11 |