A magnitude ML 1.7 earthquake occured in region: 6 km W Arquata del Tronto (AP), on
and geographic coordinates (lat, lon) 42.7880, 13.2230 at 9 km depth.
The earthquake was located by: Bollettino Sismico Italiano INGV.
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 | 6 | 1178 | 1178 |
Accumoli | RI | 11 | 667 | 1845 |
Norcia | PG | 11 | 4957 | 6802 |
Montegallo | AP | 11 | 523 | 7325 |
Castelsantangelo sul Nera | MC | 13 | 281 | 7606 |
Montemonaco | AP | 15 | 604 | 8210 |
Acquasanta Terme | AP | 15 | 2916 | 11126 |
Preci | PG | 18 | 724 | 11850 |
Amatrice | RI | 18 | 2657 | 14507 |
Ussita | MC | 19 | 444 | 14951 |
Cascia | PG | 19 | 3217 | 18168 |
Visso | MC | 19 | 1107 | 19275 |
Cittareale | RI | 20 | 482 | 19757 |
Montefortino | FM | 20 | 1178 | 20935 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.7 | 2021-02-28 04:00:24 |
42.7882 | 13.2232 | 9 | 2021-07-12 16:55:01 |
Bollettino Sismico Italiano INGV | 87946121 |
Reviewed Rev100 |
ML 1.8 | 2021-02-28 04:00:24 |
42.7867 | 13.2287 | 9 | 2021-02-28 04:34:20 |
Sala Sismica INGV-Roma | 87559871 |
Field | Value |
---|---|
Time (UTC) | 2021-02-28 04:00:24 ± 0.06 |
Latitude | 42.7882 ± 0.0027 |
Longitude | 13.2232 ± 0.0049 |
Depth (km) | 9 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 87946121 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 418 |
Semi-minor axis of confidence ellipse (meter) | 154 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 83 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 420.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 59 |
Number of associated phases, regardless of their use for origin computation | 46 |
Number of defining phases | 46 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.32 |
Epicentral distance of station closest to the epicenter (degree) | 0.09173 |
Epicentral distance of station farthest from the epicenter (degree) | 0.54769 |
Number of stations at which the event was observed | 24 |
Number of stations from which data was used for origin computation | 24 |
Field | Value |
---|---|
Value | 1.7 |
Uncertainty | 0.2 |
Num. used stations | 20 |
Type of magnitude | ML |
Reference to an origin | 87946121 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-03-09 16:58:55 |
Field | Value |
---|---|
Value | 1.8 |
Uncertainty | 0.2 |
Num. used stations | 20 |
Type of magnitude | ML |
Reference to an origin | 87559871 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-02-28 04:34:20 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.EL6.EHZ. | 2021-02-28T04:00:44.98 | 0.3 | undecidable | manual | S | 351 | 60.7947 | 50 | 1.03 | 50 |
IV.MOMA.HNZ. | 2021-02-28T04:00:42.58 | 0.3 | undecidable | manual | S | 272 | 53.2023 | 50 | 0.67 | 60 |
IV.MNTT.EHZ. | 2021-02-28T04:00:40.12 | 0.6 | undecidable | manual | S | 45 | 42.8238 | 50 | 0.96 | 36 |
IV.MML1.HNE. | 2021-02-28T04:00:38.59 | 0.3 | undecidable | manual | S | 331 | 41.4252 | 50 | -0.19 | 69 |
IV.SAP2.EHE. | 2021-02-28T04:00:38.29 | 0.3 | undecidable | manual | S | 23 | 37.1295 | 50 | 0.68 | 61 |
IV.PF6.EHN. | 2021-02-28T04:00:37.89 | 0.3 | undecidable | manual | S | 357 | 38.8278 | 50 | -0.2 | 70 |
IV.CESI.HHZ. | 2021-02-28T04:00:37.04 | 0.3 | undecidable | manual | S | 313 | 35.3424 | 50 | -0.1 | 71 |
IV.TERO.HHZ. | 2021-02-28T04:00:36.61 | 0.3 | undecidable | manual | S | 120 | 36.0417 | 50 | -0.73 | 60 |
IV.GUMA.HHZ. | 2021-02-28T04:00:36.71 | 0.3 | undecidable | manual | S | 17 | 31.746 | 105 | 0.56 | 65 |
IV.CSP1.EHZ. | 2021-02-28T04:00:36.33 | 0.3 | undecidable | manual | S | 357 | 33.744 | 50 | -0.38 | 67 |
IV.MF5.EHZ. | 2021-02-28T04:00:35.83 | 0.3 | undecidable | manual | S | 41 | 29.3484 | 106 | 0.5 | 66 |
IV.EL6.EHZ. | 2021-02-28T04:00:35.83 | 0.1 | undecidable | manual | P | 351 | 60.7947 | 50 | 0.01 | 93 |
IV.GAVE.EHN. | 2021-02-28T04:00:35.11 | 0.6 | undecidable | manual | S | 248 | 28.8489 | 107 | -0.06 | 49 |
IV.RM33.EHZ. | 2021-02-28T04:00:35.98 | 0.3 | undecidable | manual | S | 181 | 30.9468 | 106 | 0.1 | 72 |
IV.FDMO.HHZ. | 2021-02-28T04:00:35.23 | 0.3 | undecidable | manual | S | 338 | 29.6481 | 106 | -0.22 | 70 |
IT.MTCL.HGZ. | 2021-02-28T04:00:34.78 | 0.3 | undecidable | manual | S | 322 | 29.1486 | 107 | -0.5 | 66 |
IV.LNSS.HHZ. | 2021-02-28T04:00:34.57 | 0.3 | undecidable | manual | S | 216 | 25.3524 | 109 | 0.54 | 66 |
IV.MOMA.HNZ. | 2021-02-28T04:00:34.71 | 0.1 | undecidable | manual | P | 272 | 53.2023 | 50 | 0.06 | 93 |
IV.MNTT.EHZ. | 2021-02-28T04:00:33.68 | 0.1 | undecidable | manual | P | 45 | 42.8238 | 50 | 0.62 | 82 |
IV.FEMA.HNE. | 2021-02-28T04:00:33.57 | 0.3 | undecidable | manual | S | 324 | 23.8539 | 110 | 0.03 | 74 |
IV.SAP2.EHE. | 2021-02-28T04:00:32.57 | 1.0 | undecidable | manual | P | 23 | 37.1295 | 50 | 0.41 | 22 |
IV.PF6.EHN. | 2021-02-28T04:00:32.05 | 0.1 | undecidable | manual | P | 357 | 38.8278 | 50 | -0.39 | 89 |
IV.T1299.HNN. | 2021-02-28T04:00:32.03 | 0.6 | undecidable | manual | S | 164 | 17.7711 | 116 | 0.46 | 46 |
IV.MML1.HNE. | 2021-02-28T04:00:32.68 | 0.1 | undecidable | manual | P | 331 | 41.4252 | 50 | -0.16 | 93 |
IV.GUMA.HHZ. | 2021-02-28T04:00:31.35 | 0.1 | undecidable | manual | P | 17 | 31.746 | 105 | 0.03 | 97 |
IV.CSP1.EHZ. | 2021-02-28T04:00:31.31 | 0.1 | undecidable | manual | P | 357 | 33.744 | 50 | -0.34 | 91 |
IV.TERO.HHZ. | 2021-02-28T04:00:31.45 | 0.1 | undecidable | manual | P | 120 | 36.0417 | 50 | -0.56 | 86 |
IV.RM33.EHZ. | 2021-02-28T04:00:31.00 | 0.1 | undecidable | manual | P | 181 | 30.9468 | 106 | -0.16 | 95 |
IV.CESI.HHZ. | 2021-02-28T04:00:31.84 | 0.1 | undecidable | manual | P | 313 | 35.3424 | 50 | -0.05 | 96 |
IV.LNSS.HHZ. | 2021-02-28T04:00:30.16 | 0.1 | undecidable | manual | P | 216 | 25.3524 | 109 | 0.07 | 98 |
IV.MMO1.EHZ. | 2021-02-28T04:00:30.41 | 0.3 | undecidable | manual | S | 34 | 14.9739 | 120 | -0.3 | 71 |
IV.FDMO.HHZ. | 2021-02-28T04:00:30.66 | 0.1 | undecidable | manual | P | 338 | 29.6481 | 106 | -0.25 | 93 |
IT.MTCL.HGZ. | 2021-02-28T04:00:30.64 | 0.1 | undecidable | manual | P | 322 | 29.1486 | 107 | -0.18 | 95 |
IV.MTRA.EHZ. | 2021-02-28T04:00:30.32 | 0.3 | undecidable | manual | S | 104 | 14.5743 | 121 | -0.27 | 71 |
IV.MF5.EHZ. | 2021-02-28T04:00:30.91 | 0.1 | undecidable | manual | P | 41 | 29.3484 | 106 | 0.06 | 97 |
IV.CAMP.HHE. | 2021-02-28T04:00:30.81 | 1.0 | undecidable | manual | P | 152 | 31.8459 | 105 | -0.52 | 22 |
IV.GAVE.EHN. | 2021-02-28T04:00:30.74 | 0.6 | undecidable | manual | P | 248 | 28.8489 | 107 | -0.01 | 49 |
IV.MC2.EHZ. | 2021-02-28T04:00:30.54 | 0.3 | undecidable | manual | S | 349 | 13.9749 | 122 | 0.12 | 74 |
IV.NRCA.HHZ. | 2021-02-28T04:00:29.54 | 0.3 | undecidable | manual | S | 300 | 10.1787 | 130 | 0.18 | 73 |
IV.FEMA.HNE. | 2021-02-28T04:00:29.04 | 0.3 | undecidable | manual | P | 324 | 23.8539 | 110 | -0.77 | 60 |
IV.MC2.EHZ. | 2021-02-28T04:00:28.17 | 0.1 | undecidable | manual | P | 349 | 13.9749 | 122 | 0.16 | 98 |
IV.T1299.HNN. | 2021-02-28T04:00:28.95 | 0.1 | undecidable | manual | P | 164 | 17.7711 | 116 | 0.28 | 95 |
IV.SMA1.EHZ. | 2021-02-28T04:00:28.93 | 0.1 | undecidable | manual | P | 152 | 19.7691 | 114 | -0.11 | 98 |
IV.MMO1.EHZ. | 2021-02-28T04:00:28.05 | 0.1 | undecidable | manual | P | 34 | 14.9739 | 120 | -0.13 | 98 |
IV.MTRA.EHZ. | 2021-02-28T04:00:28.15 | 0.1 | undecidable | manual | P | 104 | 14.5743 | 121 | 0.04 | 100 |
IV.NRCA.HHZ. | 2021-02-28T04:00:27.55 | 0.1 | undecidable | manual | P | 300 | 10.1787 | 130 | 0.15 | 98 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HNE. | ML:1.9 | 0.0010550000000000002 | 1.32 | AML | other | m | 2021-02-28T04:00:29.87 |
IV.NRCA.HHE. | ML:1.9 | 0.0010950000000000003 | 1.32 | AML | other | m | 2021-02-28T04:00:29.87 |
IV.NRCA.HHN. | ML:1.9 | 0.001095 | 0.32 | AML | other | m | 2021-02-28T04:00:29.81 |
IV.NRCA.HNN. | ML:1.9 | 0.001105 | 0.32 | AML | other | m | 2021-02-28T04:00:29.97 |
IV.MTRA.HNN. | ML:1.9 | 0.0008185 | 1.64 | AML | other | m | 2021-02-28T04:00:30.00 |
IV.MTRA.EHN. | ML:1.9 | 0.0007975 | 1.62 | AML | other | m | 2021-02-28T04:00:30.01 |
IV.MTRA.HNE. | ML:1.8 | 0.0006559999999999999 | 0.24 | AML | other | m | 2021-02-28T04:00:31.39 |
IV.MTRA.EHE. | ML:1.8 | 0.000657 | 0.24 | AML | other | m | 2021-02-28T04:00:31.39 |
IV.LNSS.HHE. | ML:1.6 | 0.00023199999999999997 | 0.14 | AML | other | m | 2021-02-28T04:00:35.35 |
IV.LNSS.HHN. | ML:1.5 | 0.000169 | 0.8 | AML | other | m | 2021-02-28T04:00:35.78 |
IV.SMA1.EHE. | ML:1.4 | 0.0001785 | 0.44 | AML | other | m | 2021-02-28T04:00:36.06 |
IV.TERO.HHN. | ML:1.6 | 0.00016749999999999998 | 0.78 | AML | other | m | 2021-02-28T04:00:36.87 |
IV.TERO.HHE. | ML:1.5 | 0.000114 | 0.14 | AML | other | m | 2021-02-28T04:00:37.06 |
IV.GUMA.HNE. | ML:2.0 | 0.00047349999999999996 | 0.3 | AML | other | m | 2021-02-28T04:00:37.45 |
IV.CSP1.EHE. | ML:2.0 | 0.0004035 | 0.88 | AML | other | m | 2021-02-28T04:00:37.61 |
IV.GUMA.HHE. | ML:2.1 | 0.000632 | 0.36 | AML | other | m | 2021-02-28T04:00:37.44 |
IV.CSP1.EHN. | ML:1.9 | 0.000334 | 1.46 | AML | other | m | 2021-02-28T04:00:37.11 |
IV.SMA1.EHN. | ML:1.3 | 0.000154 | 1.3 | AML | other | m | 2021-02-28T04:00:40.17 |
IV.CESI.HHE. | ML:1.2 | 0.000071255495 | 0.1216 | AML | other | m | 2021-02-28T04:00:38.15 |
IV.CESI.HHN. | ML:1.5 | 0.00012485088 | 0.16 | AML | other | m | 2021-02-28T04:00:37.89 |