A magnitude ML 1.3 earthquake occured in region: 4 km W Arquata del Tronto (AP), on
and geographic coordinates (lat, lon) 42.7560, 13.2530 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 | 4 | 1178 | 1178 |
Accumoli | RI | 7 | 667 | 1845 |
Montegallo | AP | 12 | 523 | 2368 |
Acquasanta Terme | AP | 13 | 2916 | 5284 |
Norcia | PG | 14 | 4957 | 10241 |
Amatrice | RI | 14 | 2657 | 12898 |
Montemonaco | AP | 17 | 604 | 13502 |
Cittareale | RI | 17 | 482 | 13984 |
Castelsantangelo sul Nera | MC | 18 | 281 | 14265 |
Cascia | PG | 20 | 3217 | 17482 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.3 | 2021-02-22 12:32:13 |
42.7563 | 13.2532 | 10 | 2021-02-22 12:38:28 |
Sala Sismica INGV-Roma | 87377111 |
Field | Value |
---|---|
Time (UTC) | 2021-02-22 12:32:13 ± 0.05 |
Latitude | 42.7563 ± 0.0018 |
Longitude | 13.2532 ± 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 | 87377111 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 335 |
Semi-minor axis of confidence ellipse (meter) | 74 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 266 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 330.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 84 |
Number of associated phases, regardless of their use for origin computation | 27 |
Number of defining phases | 24 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.19 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.35613 |
Number of stations at which the event was observed | 15 |
Number of stations from which data was used for origin computation | 12 |
Field | Value |
---|---|
Value | 1.3 |
Uncertainty | 0.4 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 87377111 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-02-22 12:38:28 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.RDP.HHZ. | 2021-02-22T12:32:50.30 | 3.0 | undecidable | manual | S | -0.02 | 0 | |||
IV.PE3.EHZ. | 2021-02-22T12:32:35.57 | 3.0 | positive | manual | P | 1.28 | 0 | |||
IV.APEC.HHZ. | 2021-02-22T12:32:33.67 | 3.0 | negative | manual | P | 0.58 | 0 | |||
IV.CESI.HHZ. | 2021-02-22T12:32:26.50 | 0.3 | undecidable | manual | S | 314 | 39.5271 | 50 | -0.03 | 73 |
IV.CSP1.EHZ. | 2021-02-22T12:32:25.90 | 0.3 | undecidable | manual | S | 354 | 37.4292 | 50 | -0.07 | 72 |
IV.MF5.EHZ. | 2021-02-22T12:32:24.70 | 0.3 | undecidable | manual | S | 33 | 30.6471 | 50 | 0.53 | 66 |
IV.TERO.HHZ. | 2021-02-22T12:32:24.11 | 0.1 | undecidable | manual | S | 117 | 32.2455 | 50 | -0.47 | 90 |
IV.FDMO.HHZ. | 2021-02-22T12:32:24.90 | 0.3 | undecidable | manual | S | 337 | 33.8439 | 50 | -0.12 | 72 |
IV.GAVE.EHZ. | 2021-02-22T12:32:24.00 | 0.3 | undecidable | manual | S | 256 | 30.1476 | 50 | -0.02 | 74 |
IV.RM33.EHZ. | 2021-02-22T12:32:23.50 | 0.1 | undecidable | manual | S | 187 | 27.6501 | 50 | 0.15 | 97 |
IV.LNSS.HHZ. | 2021-02-22T12:32:22.40 | 0.3 | undecidable | manual | S | 226 | 24.3534 | 113 | -0.07 | 74 |
IV.CSP1.EHZ. | 2021-02-22T12:32:20.47 | 0.6 | negative | manual | P | 354 | 37.4292 | 50 | -0.15 | 47 |
IV.CESI.HHZ. | 2021-02-22T12:32:20.83 | 0.1 | positive | manual | P | 314 | 39.5271 | 50 | -0.12 | 95 |
IV.MC2.EHZ. | 2021-02-22T12:32:20.70 | 0.1 | undecidable | manual | S | 343 | 17.9709 | 119 | 0.21 | 97 |
IV.RM33.EHZ. | 2021-02-22T12:32:19.14 | 1.0 | undecidable | manual | P | 187 | 27.6501 | 50 | 0.03 | 25 |
IV.NRCA.HNZ. | 2021-02-22T12:32:19.20 | 0.1 | undecidable | manual | S | 307 | 14.1747 | 126 | -0.17 | 98 |
IV.GAVE.EHZ. | 2021-02-22T12:32:19.53 | 0.1 | negative | manual | P | 256 | 30.1476 | 50 | 0.04 | 98 |
IV.SMA1.EHZ. | 2021-02-22T12:32:19.80 | 0.3 | undecidable | manual | S | 154 | 15.4734 | 123 | 0.05 | 75 |
IV.MF5.EHZ. | 2021-02-22T12:32:19.90 | 0.3 | positive | manual | P | 33 | 30.6471 | 50 | 0.31 | 70 |
IV.MMO1.EHZ. | 2021-02-22T12:32:19.90 | 0.1 | undecidable | manual | S | 21 | 16.9719 | 121 | -0.28 | 96 |
IV.FDMO.HHZ. | 2021-02-22T12:32:19.93 | 1.0 | undecidable | manual | P | 337 | 33.8439 | 50 | -0.15 | 24 |
IV.TERO.HHZ. | 2021-02-22T12:32:19.87 | 0.6 | undecidable | manual | P | 117 | 32.2455 | 50 | 0.05 | 49 |
IV.LNSS.HHZ. | 2021-02-22T12:32:18.61 | 0.1 | positive | manual | P | 226 | 24.3534 | 113 | 0.01 | 100 |
IV.MMO1.EHZ. | 2021-02-22T12:32:17.28 | 0.3 | undecidable | manual | P | 21 | 16.9719 | 121 | 0 | 76 |
IV.MC2.EHZ. | 2021-02-22T12:32:17.60 | 1.0 | positive | manual | P | 343 | 17.9709 | 119 | 0.14 | 25 |
IV.SMA1.EHZ. | 2021-02-22T12:32:17.22 | 0.3 | negative | manual | P | 154 | 15.4734 | 123 | 0.19 | 73 |
IV.NRCA.HNZ. | 2021-02-22T12:32:16.95 | 0.3 | positive | manual | P | 307 | 14.1747 | 126 | 0.13 | 74 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHE. | ML:1.9 | 0.000808 | 0.18 | AML | other | m | 2021-02-22T12:32:19.34 |
IV.NRCA.HHN. | ML:2.1 | 0.001185 | 0.08 | AML | other | m | 2021-02-22T12:32:19.39 |
IV.SMA1.EHN. | ML:1.1 | 0.0001239 | 0.12 | AML | other | m | 2021-02-22T12:32:19.92 |
IV.SMA1.EHE. | ML:1.1 | 0.00010795 | 0.14 | AML | other | m | 2021-02-22T12:32:20.33 |
IV.LNSS.HHE. | ML:1.2 | 0.00009769999999999999 | 0.14 | AML | other | m | 2021-02-22T12:32:23.04 |
IV.LNSS.HHN. | ML:1.1 | 0.00007875 | 0.8 | AML | other | m | 2021-02-22T12:32:25.87 |