Earthquake with magnitude of ML 1.6 on date 05-11-2021 and time 02:01:04 (Italy) in region 8 km NW Arquata del Tronto (AP)

A magnitude ML 1.6 earthquake occured in region: 8 km NW Arquata del Tronto (AP), on

  • 05-11-2021 01:01:04 (UTC)
  • 05-11-2021 02:01:04 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8240, 13.2250 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Arquata del Tronto AP 8 1178 1178
Montegallo AP 9 523 1701
Castelsantangelo sul Nera MC 10 281 1982
Norcia PG 11 4957 6939
Montemonaco AP 12 604 7543
Accumoli RI 14 667 8210
Ussita MC 15 444 8654
Preci PG 16 724 9378
Acquasanta Terme AP 16 2916 12294
Visso MC 16 1107 13401
Montefortino FM 16 1178 14579
Bolognola MC 19 142 14721

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km W of Teramo (54892 inhabitants)
45 Km E of Foligno (57155 inhabitants)
54 Km N of L'Aquila (69753 inhabitants)
56 Km NE of Terni (111501 inhabitants)
75 Km E of Perugia (166134 inhabitants)
83 Km W of Montesilvano (53738 inhabitants)
90 Km W of Pescara (121014 inhabitants)
91 Km S of Ancona (100861 inhabitants)
93 Km NW of Chieti (51815 inhabitants)
100 Km NE of Guidonia Montecelio (88673 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 1.6 2021-11-05
01:01:04
42.8242 13.225 11 2022-03-30
13:04:37
Bollettino Sismico Italiano INGV 100884881
Reviewed
Rev100
ML 1.6 2021-11-05
01:01:04
42.8242 13.2268 11 2021-11-05
01:08:35
Sala Sismica INGV-Roma 97264241
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-05 01:01:04 ± 0.06
Latitude 42.8242 ± 0.0027
Longitude 13.2250 ± 0.0049
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 100884881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 418
Semi-minor axis of confidence ellipse (meter) 239
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 73
Circular confidence region, given by single value of horizontal uncertainty (meter) 420.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 46
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 41
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.08184
Epicentral distance of station farthest from the epicenter (degree) 0.55128
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.4
Num. used stations 8
Type of magnitude ML
Reference to an origin 100884881
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-11 17:48:32

ML:1.6

Field Value
Value 1.6
Uncertainty 0.4
Num. used stations 8
Type of magnitude ML
Reference to an origin 97264241
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-05 01:08:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CING.HHZ. 2021-11-05T01:01:24.44 0.6 undecidable manual S 358 61.1943 50 0.64 40
IV.MNTT.EHZ. 2021-11-05T01:01:19.65 0.3 undecidable manual S 49 40.0266 50 1.51 41
IV.MML1.EHZ. 2021-11-05T01:01:17.57 0.6 undecidable manual S 327 38.1285 50 -0.06 48
IV.RM33.EHZ. 2021-11-05T01:01:17.01 0.6 undecidable manual S 181 34.9428 50 0.22 47
IV.TERO.HHZ. 2021-11-05T01:01:17.16 0.6 undecidable manual S 126 38.1285 50 -0.46 44
IV.CESI.HHZ. 2021-11-05T01:01:16.31 0.6 undecidable manual S 308 32.8449 50 0.09 48
IV.CING.HHZ. 2021-11-05T01:01:15.77 0.3 undecidable manual P 358 61.1943 50 -0.05 69
IV.GAVE.EHZ. 2021-11-05T01:01:15.88 0.3 undecidable manual S 242 30.6471 50 0.24 70
IV.CSP1.EHZ. 2021-11-05T01:01:15.04 0.6 undecidable manual S 357 29.748 50 -0.35 46
IV.LNSS.HHZ. 2021-11-05T01:01:15.57 0.6 undecidable manual S 212 28.749 50 0.43 45
IV.GUMA.HNN. 2021-11-05T01:01:15.10 0.3 undecidable manual S 19 27.9498 50 0.19 72
IV.FDMO.HHZ. 2021-11-05T01:01:14.06 0.6 undecidable manual S 335 26.0517 50 -0.36 46
IV.MF5.EHZ. 2021-11-05T01:01:14.68 0.6 undecidable manual S 46 26.3514 50 0.2 48
IT.MTCL.HGZ. 2021-11-05T01:01:14.14 0.6 undecidable manual S 316 26.2515 50 -0.33 46
IV.T1299.HNN. 2021-11-05T01:01:13.48 0.6 undecidable manual S 168 21.5673 50 0.27 47
IV.SMA1.EHZ. 2021-11-05T01:01:13.50 0.6 undecidable manual S 157 23.2545 50 -0.17 48
IV.FEMA.HNE. 2021-11-05T01:01:12.93 0.6 undecidable manual S 317 20.9679 50 -0.1 49
IV.MML1.EHZ. 2021-11-05T01:01:12.01 0.3 undecidable manual P 327 38.1285 50 -0.25 69
IV.OFFI.HHE. 2021-11-05T01:01:12.90 0.1 undecidable manual P 72 39.4272 50 0.44 89
IV.MNTT.EHZ. 2021-11-05T01:01:12.86 0.3 undecidable manual P 49 40.0266 50 0.3 68
IV.RM33.EHZ. 2021-11-05T01:01:11.75 0.3 undecidable manual P 181 34.9428 50 -0.03 73
IV.MTRA.EHE. 2021-11-05T01:01:11.23 0.6 undecidable manual S 118 15.873 124 -0.36 47
IV.TERO.HHZ. 2021-11-05T01:01:11.88 0.3 undecidable manual P 126 38.1285 50 -0.38 68
IV.GAVE.EHZ. 2021-11-05T01:01:11.18 0.3 undecidable manual P 242 30.6471 50 0.07 73
IV.CESI.HHZ. 2021-11-05T01:01:11.31 0.1 positive manual P 308 32.8449 50 -0.14 96
IV.CSP1.EHZ. 2021-11-05T01:01:10.66 0.1 undecidable manual P 357 29.748 50 -0.31 93
IT.MTCL.HGZ. 2021-11-05T01:01:10.16 0.3 undecidable manual P 316 26.2515 50 -0.28 70
IV.LNSS.HHZ. 2021-11-05T01:01:10.89 0.1 undecidable manual P 212 28.749 50 0.06 98
IV.GUMA.HNN. 2021-11-05T01:01:10.58 0.3 undecidable manual P 19 27.9498 50 -0.12 73
IV.NRCA.HHZ. 2021-11-05T01:01:10.17 0.6 undecidable manual S 277 9.0798 140 0.34 48
IV.FDMO.HHZ. 2021-11-05T01:01:10.03 0.1 undecidable manual P 335 26.0517 50 -0.38 92
IV.MMO1.EHN. 2021-11-05T01:01:10.25 0.3 undecidable manual S 45 11.7771 133 -0.23 73
IV.MC2.EHZ. 2021-11-05T01:01:10.34 0.3 undecidable manual S 343 10.0788 137 0.27 73
IV.MF5.EHZ. 2021-11-05T01:01:10.43 0.1 undecidable manual P 46 26.3514 50 -0.02 99
IV.T1299.HNN. 2021-11-05T01:01:09.73 0.1 undecidable manual P 168 21.5673 50 0.02 100
IV.SMA1.EHZ. 2021-11-05T01:01:09.78 0.1 undecidable manual P 157 23.2545 50 -0.19 96
IV.FEMA.HNE. 2021-11-05T01:01:09.50 0.3 undecidable manual P 317 20.9679 50 -0.11 74
IV.MC2.EHZ. 2021-11-05T01:01:08.12 0.1 undecidable manual P 343 10.0788 137 0.22 98
IV.MTRA.EHE. 2021-11-05T01:01:08.56 0.3 undecidable manual P 118 15.873 124 -0.22 73
IV.NRCA.HHZ. 2021-11-05T01:01:08.02 0.1 undecidable manual P 277 9.0798 140 0.26 97
IV.MMO1.EHN. 2021-11-05T01:01:08.01 0.1 undecidable manual P 45 11.7771 133 -0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:2.0 0.00128 0.1 AML other m 2021-11-05T01:01:10.38
IV.NRCA.HNN. ML:2.0 0.0011949999999999999 0.12 AML other m 2021-11-05T01:01:10.39
IV.NRCA.HHE. ML:2.0 0.0012 0.14 AML other m 2021-11-05T01:01:10.30
IV.NRCA.HNE. ML:2.0 0.001165 0.14 AML other m 2021-11-05T01:01:10.30
IV.SMA1.EHN. ML:1.2 0.00009054999999999999 0.42 AML other m 2021-11-05T01:01:13.61
IV.SMA1.EHE. ML:1.3 0.00011765 0.84 AML other m 2021-11-05T01:01:13.87
IV.LNSS.HHE. ML:1.1 0.0000667 1.42 AML other m 2021-11-05T01:01:16.17
IV.LNSS.HHN. ML:1.0 0.00005505 0.7 AML other m 2021-11-05T01:01:16.23
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download