A magnitude ML 0.9 earthquake occured in region: 4 km SW Arquata del Tronto (AP), on
and geographic coordinates (lat, lon) 42.7460, 13.2580 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 | 5 | 1178 | 1178 |
Accumoli | RI | 6 | 667 | 1845 |
Montegallo | AP | 12 | 523 | 2368 |
Acquasanta Terme | AP | 13 | 2916 | 5284 |
Amatrice | RI | 13 | 2657 | 7941 |
Norcia | PG | 14 | 4957 | 12898 |
Cittareale | RI | 16 | 482 | 13380 |
Montemonaco | AP | 18 | 604 | 13984 |
Castelsantangelo sul Nera | MC | 19 | 281 | 14265 |
Valle Castellana | TE | 20 | 977 | 15242 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2021-02-01 21:32:40 |
42.7463 | 13.2577 | 10 | 2021-02-01 21:40:12 |
Sala Sismica INGV-Roma | 86771041 |
Field | Value |
---|---|
Time (UTC) | 2021-02-01 21:32:40 ± 0.04 |
Latitude | 42.7463 ± 0.0018 |
Longitude | 13.2577 ± 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 | 86771041 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 276 |
Semi-minor axis of confidence ellipse (meter) | 182 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 64 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 280.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 105 |
Number of associated phases, regardless of their use for origin computation | 17 |
Number of defining phases | 17 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.13 |
Epicentral distance of station closest to the epicenter (degree) | 0.10252 |
Epicentral distance of station farthest from the epicenter (degree) | 0.34714 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.3 |
Num. used stations | 20 |
Type of magnitude | ML |
Reference to an origin | 86771041 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-02-01 21:40:12 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CSP1.EHZ. | 2021-02-01T21:32:53.76 | 0.3 | undecidable | manual | S | 354 | 38.5281 | 50 | 0.18 | 70 |
IV.FDMO.HHZ. | 2021-02-01T21:32:52.42 | 0.3 | undecidable | manual | S | 337 | 35.0427 | 50 | -0.21 | 70 |
IV.GAVE.EHZ. | 2021-02-01T21:32:51.38 | 0.3 | undecidable | manual | S | 259 | 30.2475 | 50 | 0.03 | 73 |
IV.CSP1.EHZ. | 2021-02-01T21:32:48.14 | 0.3 | undecidable | manual | P | 354 | 38.5281 | 50 | 0.02 | 72 |
IV.MC2.EHZ. | 2021-02-01T21:32:48.37 | 0.3 | undecidable | manual | S | 343 | 19.1697 | 118 | 0.14 | 73 |
IV.FDMO.HHZ. | 2021-02-01T21:32:47.49 | 0.3 | undecidable | manual | P | 337 | 35.0427 | 50 | -0.09 | 72 |
IV.MMO1.EHZ. | 2021-02-01T21:32:47.71 | 0.1 | undecidable | manual | S | 18 | 17.871 | 120 | -0.14 | 98 |
IV.TERO.HHZ. | 2021-02-01T21:32:47.00 | 0.1 | undecidable | manual | P | 116 | 31.3464 | 50 | -0.02 | 98 |
IV.SMA1.EHZ. | 2021-02-01T21:32:46.61 | 0.3 | undecidable | manual | S | 154 | 14.3745 | 126 | -0.2 | 73 |
IV.NRCA.HHZ. | 2021-02-01T21:32:46.95 | 0.1 | undecidable | manual | S | 310 | 15.1737 | 124 | -0.09 | 99 |
IV.GAVE.EHZ. | 2021-02-01T21:32:46.75 | 0.3 | undecidable | manual | P | 259 | 30.2475 | 50 | -0.09 | 72 |
IV.MC2.EHZ. | 2021-02-01T21:32:45.12 | 0.3 | undecidable | manual | P | 343 | 19.1697 | 118 | 0.08 | 74 |
IV.MTRA.EHZ. | 2021-02-01T21:32:45.93 | 0.1 | undecidable | manual | S | 84 | 11.3775 | 132 | -0.09 | 100 |
IV.SMA1.EHZ. | 2021-02-01T21:32:44.39 | 0.1 | undecidable | manual | P | 154 | 14.3745 | 126 | 0.17 | 97 |
IV.NRCA.HHZ. | 2021-02-01T21:32:44.42 | 0.1 | undecidable | manual | P | 310 | 15.1737 | 124 | 0.07 | 99 |
IV.MMO1.EHZ. | 2021-02-01T21:32:44.83 | 0.1 | undecidable | manual | P | 18 | 17.871 | 120 | 0.01 | 100 |
IV.MTRA.EHZ. | 2021-02-01T21:32:43.92 | 0.1 | undecidable | manual | P | 84 | 11.3775 | 132 | 0.17 | 98 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.MTRA.EHE. | ML:0.6 | 0.000049223565 | 0.1024 | AML | other | m | 2021-02-01T21:32:46.60 |
IV.NRCA.HHE. | ML:1.2 | 0.0001445 | 1.84 | AML | other | m | 2021-02-01T21:32:46.05 |
IV.NRCA.HHN. | ML:1.2 | 0.000162 | 0.1 | AML | other | m | 2021-02-01T21:32:47.09 |
IV.MTRA.EHN. | ML:0.5 | 0.00004227194 | 0.1152 | AML | other | m | 2021-02-01T21:32:46.54 |
IV.MTRA.HNE. | ML:1.0 | 0.00011041851 | 0.384 | AML | other | m | 2021-02-01T21:32:46.45 |
IV.MTRA.HNN. | ML:1.0 | 0.00012676705 | 1.2288 | AML | other | m | 2021-02-01T21:32:46.60 |
IV.SMA1.EHE. | ML:0.5 | 0.00003177793 | 0.1024 | AML | other | m | 2021-02-01T21:32:47.12 |
IV.SMA1.EHN. | ML:0.5 | 0.000031302894999999994 | 0.9856 | AML | other | m | 2021-02-01T21:32:47.45 |
IV.NRCA.HNE. | ML:1.2 | 0.00014501535 | 0.1408 | AML | other | m | 2021-02-01T21:32:47.05 |
IV.NRCA.HNN. | ML:1.3 | 0.00019554805 | 0.96 | AML | other | m | 2021-02-01T21:32:47.52 |
IV.GAVE.HNE. | ML:1.4 | 0.000112010025 | 0.9472 | AML | other | m | 2021-02-01T21:32:46.69 |
IV.GAVE.HNN. | ML:1.6 | 0.00016854275000000003 | 0.6784 | AML | other | m | 2021-02-01T21:32:53.51 |
IV.GAVE.EHE. | ML:0.8 | 0.000028927910000000002 | 0.192 | AML | other | m | 2021-02-01T21:32:53.36 |
IV.GAVE.EHN. | ML:0.6 | 0.000021472844000000003 | 0.1408 | AML | other | m | 2021-02-01T21:32:51.83 |
IV.TERO.HHE. | ML:0.6 | 0.000020751355 | 0.1024 | AML | other | m | 2021-02-01T21:32:52.22 |
IV.TERO.HHN. | ML:0.6 | 0.00001889103 | 2.5344 | AML | other | m | 2021-02-01T21:32:52.81 |
IV.TERO.HNE. | ML:1.5 | 0.00014525195000000002 | 0.8704 | AML | other | m | 2021-02-01T21:32:48.49 |
IV.TERO.HNN. | ML:1.6 | 0.00017368505000000002 | 0.9344 | AML | other | m | 2021-02-01T21:32:47.62 |
IV.FDMO.HHE. | ML:0.7 | 0.000019122015 | 4.1856 | AML | other | m | 2021-02-01T21:32:54.41 |
IV.FDMO.HHN. | ML:0.7 | 0.00001949911 | 5.1328 | AML | other | m | 2021-02-01T21:32:54.91 |