A magnitude ML 1.0 earthquake occured in region: 5 km SW Arquata del Tronto (AP), on
and geographic coordinates (lat, lon) 42.7490, 13.2490 at 11 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 | 5 | 1178 | 1178 |
Accumoli | RI | 6 | 667 | 1845 |
Montegallo | AP | 13 | 523 | 2368 |
Acquasanta Terme | AP | 13 | 2916 | 5284 |
Norcia | PG | 14 | 4957 | 10241 |
Amatrice | RI | 14 | 2657 | 12898 |
Cittareale | RI | 16 | 482 | 13380 |
Montemonaco | AP | 18 | 604 | 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 |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.0 | 2021-08-16 00:58:47 |
42.7493 | 13.2487 | 11 | 2021-12-29 11:12:21 |
Bollettino Sismico Italiano INGV | 94410321 |
Reviewed Rev100 |
ML 0.9 | 2021-08-16 00:58:47 |
42.7503 | 13.2477 | 11 | 2021-08-16 01:04:27 |
Sala Sismica INGV-Roma | 94228511 |
Field | Value |
---|---|
Time (UTC) | 2021-08-16 00:58:47 ± 0.07 |
Latitude | 42.7493 ± 0.0036 |
Longitude | 13.2487 ± 0.0073 |
Depth (km) | 11 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 94410321 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 560 |
Semi-minor axis of confidence ellipse (meter) | 348 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 68 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 560.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 53 |
Number of associated phases, regardless of their use for origin computation | 26 |
Number of defining phases | 26 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.31 |
Epicentral distance of station closest to the epicenter (degree) | 0.10882 |
Epicentral distance of station farthest from the epicenter (degree) | 0.40290 |
Number of stations at which the event was observed | 15 |
Number of stations from which data was used for origin computation | 15 |
Field | Value |
---|---|
Value | 1.0 |
Uncertainty | 0.3 |
Num. used stations | 20 |
Type of magnitude | ML |
Reference to an origin | 94410321 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-08-20 10:24:54 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.2 |
Num. used stations | 16 |
Type of magnitude | ML |
Reference to an origin | 94228511 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-08-16 01:04:27 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.FDMO.HHZ. | 2021-08-16T00:58:58.56 | 0.1 | undecidable | manual | S | 338 | 34.4433 | 50 | -0.22 | 93 |
IV.GAVE.EHZ. | 2021-08-16T00:58:57.68 | 0.6 | undecidable | manual | S | 258 | 29.5482 | 50 | 0.2 | 47 |
IV.CAMP.HHZ. | 2021-08-16T00:58:56.08 | 0.1 | undecidable | manual | S | 151 | 27.0507 | 50 | -0.73 | 81 |
IV.RM33.EHZ. | 2021-08-16T00:58:56.92 | 0.6 | undecidable | manual | S | 186 | 26.8509 | 50 | 0.18 | 47 |
IV.MNTT.EHZ. | 2021-08-16T00:58:56.33 | 0.3 | undecidable | manual | P | 39 | 44.7219 | 50 | 0.95 | 53 |
IV.LNSS.HHZ. | 2021-08-16T00:58:55.81 | 0.1 | undecidable | manual | S | 226 | 23.5542 | 50 | -0.05 | 98 |
IV.MC2.EHZ. | 2021-08-16T00:58:54.25 | 0.1 | undecidable | manual | S | 345 | 18.6702 | 120 | -0.18 | 96 |
IV.CSP1.EHZ. | 2021-08-16T00:58:54.95 | 0.1 | undecidable | manual | P | 355 | 38.1285 | 50 | 0.58 | 84 |
IV.T1299.EHZ. | 2021-08-16T00:58:53.28 | 0.6 | undecidable | manual | S | 168 | 13.0758 | 129 | 0.45 | 46 |
IV.FDMO.HHZ. | 2021-08-16T00:58:53.44 | 0.1 | undecidable | manual | P | 338 | 34.4433 | 50 | -0.36 | 90 |
IV.SMA1.EHZ. | 2021-08-16T00:58:53.18 | 0.6 | undecidable | manual | S | 152 | 14.9739 | 125 | -0.18 | 48 |
IV.MF5.EHZ. | 2021-08-16T00:58:53.68 | 0.1 | undecidable | manual | P | 33 | 31.5462 | 50 | 0.33 | 91 |
IV.TERO.HHZ. | 2021-08-16T00:58:53.24 | 0.3 | undecidable | manual | P | 116 | 32.1456 | 50 | -0.22 | 70 |
IV.MMO1.HNZ. | 2021-08-16T00:58:53.94 | 0.1 | undecidable | manual | S | 21 | 17.7711 | 121 | -0.25 | 95 |
IV.NRCA.HHZ. | 2021-08-16T00:58:52.91 | 0.1 | undecidable | manual | S | 311 | 14.3745 | 126 | -0.28 | 95 |
IV.RM33.EHZ. | 2021-08-16T00:58:52.82 | 0.3 | undecidable | manual | P | 186 | 26.8509 | 50 | 0.19 | 71 |
IV.GAVE.EHZ. | 2021-08-16T00:58:52.93 | 0.1 | undecidable | manual | P | 258 | 29.5482 | 50 | -0.12 | 95 |
IV.LNSS.HHZ. | 2021-08-16T00:58:52.08 | 0.1 | undecidable | manual | P | 226 | 23.5542 | 50 | -0.04 | 98 |
IV.MTRA.EHZ. | 2021-08-16T00:58:52.37 | 0.1 | undecidable | manual | S | 86 | 12.0768 | 131 | -0.2 | 97 |
IV.CAMP.HHZ. | 2021-08-16T00:58:52.54 | 0.1 | undecidable | manual | P | 151 | 27.0507 | 50 | -0.12 | 96 |
IV.MMO1.HNZ. | 2021-08-16T00:58:51.05 | 0.1 | undecidable | manual | P | 21 | 17.7711 | 121 | -0.1 | 98 |
IV.MC2.EHZ. | 2021-08-16T00:58:51.69 | 0.1 | undecidable | manual | P | 345 | 18.6702 | 120 | 0.4 | 92 |
IV.MTRA.EHZ. | 2021-08-16T00:58:50.29 | 0.1 | undecidable | manual | P | 86 | 12.0768 | 131 | 0.07 | 99 |
IV.NRCA.HHZ. | 2021-08-16T00:58:50.60 | 0.1 | positive | manual | P | 311 | 14.3745 | 126 | 0.02 | 100 |
IV.T1299.EHZ. | 2021-08-16T00:58:50.68 | 0.1 | undecidable | manual | P | 168 | 13.0758 | 129 | 0.31 | 94 |
IV.SMA1.EHZ. | 2021-08-16T00:58:50.75 | 0.1 | undecidable | manual | P | 152 | 14.9739 | 125 | 0.08 | 99 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.MTRA.EHN. | ML:1.2 | 0.00015655352 | 1.82 | AML | other | m | 2021-08-16T00:58:52.03 |
IV.MTRA.HNN. | ML:1.2 | 0.00015800730000000001 | 1.8296 | AML | other | m | 2021-08-16T00:58:52.94 |
IV.MTRA.EHE. | ML:1.0 | 0.00012246217 | 0.18 | AML | other | m | 2021-08-16T00:58:53.12 |
IV.NRCA.HHE. | ML:1.5 | 0.0002834549 | 0.06 | AML | other | m | 2021-08-16T00:58:53.05 |
IV.NRCA.HNE. | ML:1.4 | 0.00027451735 | 0.0704 | AML | other | m | 2021-08-16T00:58:53.05 |
IV.NRCA.HHN. | ML:1.6 | 0.00034318859999999996 | 0.1 | AML | other | m | 2021-08-16T00:58:53.10 |
IV.NRCA.HNN. | ML:1.5 | 0.0002904169 | 0.0896 | AML | other | m | 2021-08-16T00:58:53.10 |
IV.SMA1.EHN. | ML:1.0 | 0.00009402810000000001 | 0.12 | AML | other | m | 2021-08-16T00:58:53.53 |
IV.SMA1.EHE. | ML:1.0 | 0.00010587032 | 0.08 | AML | other | m | 2021-08-16T00:58:53.71 |
IV.LNSS.HHN. | ML:0.9 | 0.000050900000000000004 | 0.14 | AML | other | m | 2021-08-16T00:58:56.20 |
IV.LNSS.HHE. | ML:0.8 | 0.0000355 | 0.34 | AML | other | m | 2021-08-16T00:58:56.35 |
IV.RM33.EHN. | ML:0.7 | 0.000023800000000000003 | 0.86 | AML | other | m | 2021-08-16T00:58:57.12 |
IV.RM33.EHE. | ML:0.6 | 0.000020189999999999998 | 0.42 | AML | other | m | 2021-08-16T00:58:58.39 |
IV.TERO.HHN. | ML:0.8 | 0.000024569140000000004 | 0.08 | AML | other | m | 2021-08-16T00:58:58.59 |
IV.FDMO.HHE. | ML:0.6 | 0.0000129 | 0.22 | AML | other | m | 2021-08-16T00:58:58.74 |
IV.FDMO.HHN. | ML:0.7 | 0.0000189 | 0.28 | AML | other | m | 2021-08-16T00:58:58.74 |
IV.GAVE.EHN. | ML:0.6 | 0.000020147079999999998 | 0.14 | AML | other | m | 2021-08-16T00:58:59.09 |
IV.GAVE.EHE. | ML:1.0 | 0.000043366035 | 0.2 | AML | other | m | 2021-08-16T00:58:59.57 |
IV.MF5.EHE. | ML:0.6 | 0.000017744595000000003 | 0.3 | AML | other | m | 2021-08-16T00:58:59.49 |
IV.GAVE.HNE. | ML:1.4 | 0.000110181705 | 1.4296 | AML | other | m | 2021-08-16T00:58:59.79 |