A magnitude ML 0.6 earthquake occured in region: 2 km W Arquata del Tronto (AP), on
and geographic coordinates (lat, lon) 42.7750, 13.2790 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 | 2 | 1178 | 1178 |
Montegallo | AP | 9 | 523 | 1701 |
Accumoli | RI | 9 | 667 | 2368 |
Acquasanta Terme | AP | 11 | 2916 | 5284 |
Montemonaco | AP | 15 | 604 | 5888 |
Norcia | PG | 15 | 4957 | 10845 |
Amatrice | RI | 16 | 2657 | 13502 |
Castelsantangelo sul Nera | MC | 17 | 281 | 13783 |
Valle Castellana | TE | 18 | 977 | 14760 |
Roccafluvione | AP | 19 | 2010 | 16770 |
Montefortino | FM | 19 | 1178 | 17948 |
Cittareale | RI | 20 | 482 | 18430 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.6 | 2021-04-14 21:32:38 |
42.7753 | 13.2793 | 11 | 2021-04-14 21:37:58 |
Sala Sismica INGV-Roma | 89100301 |
Field | Value |
---|---|
Time (UTC) | 2021-04-14 21:32:38 ± 0.07 |
Latitude | 42.7753 ± 0.0036 |
Longitude | 13.2793 ± 0.0061 |
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 | 89100301 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 513 |
Semi-minor axis of confidence ellipse (meter) | 224 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 245 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 510.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 70 |
Number of associated phases, regardless of their use for origin computation | 18 |
Number of defining phases | 18 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.23 |
Epicentral distance of station closest to the epicenter (degree) | 0.08813 |
Epicentral distance of station farthest from the epicenter (degree) | 0.32106 |
Number of stations at which the event was observed | 11 |
Number of stations from which data was used for origin computation | 11 |
Field | Value |
---|---|
Value | 0.6 |
Uncertainty | 0.1 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 89100301 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-14 21:37:58 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.MF5.EHZ. | 2021-04-14T21:32:49.02 | 0.1 | undecidable | manual | S | 32 | 27.75 | 90 | 0.48 | 91 |
IV.TERO.HHZ. | 2021-04-14T21:32:49.20 | 0.1 | undecidable | manual | S | 123 | 31.4463 | 90 | -0.32 | 90 |
IV.SMA1.EHZ. | 2021-04-14T21:32:45.61 | 0.1 | undecidable | manual | S | 164 | 16.6722 | 92 | 0.01 | 100 |
IV.NRCA.HHZ. | 2021-04-14T21:32:45.13 | 0.1 | undecidable | manual | S | 296 | 14.874 | 94 | 0.02 | 100 |
IV.MC2.EHZ. | 2021-04-14T21:32:45.84 | 0.1 | undecidable | manual | S | 334 | 16.7721 | 92 | 0.23 | 97 |
IV.CSP1.EHZ. | 2021-04-14T21:32:45.27 | 0.6 | positive | manual | P | 350 | 35.6421 | 90 | -0.31 | 44 |
IV.TERO.HHZ. | 2021-04-14T21:32:44.63 | 0.6 | negative | manual | P | 123 | 31.4463 | 90 | -0.31 | 45 |
IV.LNSS.HNE. | 2021-04-14T21:32:44.41 | 0.3 | undecidable | manual | P | 226 | 27.3504 | 90 | 0.1 | 73 |
IV.FDMO.HHZ. | 2021-04-14T21:32:44.73 | 0.6 | undecidable | manual | P | 332 | 32.9448 | 90 | -0.44 | 43 |
IV.MMO1.EHZ. | 2021-04-14T21:32:44.72 | 0.1 | undecidable | manual | S | 16 | 14.2746 | 96 | -0.23 | 96 |
IV.MF5.EHZ. | 2021-04-14T21:32:44.50 | 0.6 | positive | manual | P | 32 | 27.75 | 90 | 0.12 | 49 |
IV.MTRA.EHZ. | 2021-04-14T21:32:43.91 | 0.3 | undecidable | manual | S | 102 | 9.7791 | 122 | 0.09 | 73 |
IV.NRCA.HHZ. | 2021-04-14T21:32:42.39 | 0.1 | negative | manual | P | 296 | 14.874 | 94 | 0 | 99 |
IV.MC2.EHZ. | 2021-04-14T21:32:42.63 | 0.1 | undecidable | manual | P | 334 | 16.7721 | 92 | -0.05 | 98 |
IV.SMA1.EHZ. | 2021-04-14T21:32:42.96 | 0.3 | undecidable | manual | P | 164 | 16.6722 | 92 | 0.29 | 71 |
IV.T1299.HNE. | 2021-04-14T21:32:42.89 | 0.6 | undecidable | manual | P | 179 | 15.6732 | 93 | 0.38 | 46 |
IV.MMO1.EHZ. | 2021-04-14T21:32:42.18 | 0.1 | undecidable | manual | P | 16 | 14.2746 | 96 | -0.12 | 98 |
IV.MTRA.EHZ. | 2021-04-14T21:32:41.76 | 0.1 | undecidable | manual | P | 102 | 9.7791 | 122 | 0.11 | 98 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.MTRA.EHE. | ML:0.6 | 0.00004875 | 1.72 | AML | other | m | 2021-04-14T21:32:44.13 |
IV.MTRA.EHN. | ML:0.6 | 0.0000445 | 0.16 | AML | other | m | 2021-04-14T21:32:44.37 |
IV.TERO.HHE. | ML:0.6 | 0.000018 | 0.8 | AML | other | m | 2021-04-14T21:32:49.77 |
IV.TERO.HHN. | ML:0.5 | 0.000016250000000000002 | 0.98 | AML | other | m | 2021-04-14T21:32:50.63 |