Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 05-10-2021 and time 18:21:51 (Italy) in region 2 km NE Barete (AQ)

A magnitude ML 1.6 earthquake occured in region: 2 km NE Barete (AQ), on

  • 05-10-2021 16:21:51 (UTC)
  • 05-10-2021 18:21:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4690, 13.2950 at 12 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Barete AQ 2 737 737
Pizzoli AQ 4 4326 5063
Cagnano Amiterno AQ 6 1369 6432
Capitignano AQ 6 665 7097
Montereale AQ 7 2581 9678
Scoppito AQ 11 3727 13405
Campotosto AQ 12 542 13947
Borbona RI 14 617 14564
L'Aquila AQ 16 69753 84317
Posta RI 17 694 85011
Crognaleto TE 18 1297 86308
Amatrice RI 18 2657 88965
Antrodoco RI 18 2588 91553
Micigliano RI 20 127 91680
Tornimparte AQ 20 3187 94867
Cittareale RI 20 482 95349
Lucoli AQ 20 1011 96360

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km NW of L'Aquila (69753 inhabitants)
40 Km SW of Teramo (54892 inhabitants)
54 Km E of Terni (111501 inhabitants)
69 Km NE of Tivoli (56533 inhabitants)
70 Km NE of Guidonia Montecelio (88673 inhabitants)
70 Km W of Montesilvano (53738 inhabitants)
73 Km SE of Foligno (57155 inhabitants)
73 Km W of Chieti (51815 inhabitants)
76 Km W of Pescara (121014 inhabitants)
92 Km NE of Roma (2864731 inhabitants)
97 Km NE of Velletri (53303 inhabitants)
98 Km E of Viterbo (67173 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 2021-10-05
16:21:51		 42.469 13.2947 13 2022-03-30
13:04:34		 Bollettino Sismico Italiano INGV 100530121
Reviewed
Rev100 		ML 1.6 2021-10-05
16:21:51		 42.4643 13.2887 11 2021-10-05
16:39:20		 Sala Sismica INGV-Roma 96264911
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-05 16:21:51 ± 0.06
Latitude 42.4690 ± 0.0027
Longitude 13.2947 ± 0.0037
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 100530121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 340
Semi-minor axis of confidence ellipse (meter) 44
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 219
Circular confidence region, given by single value of horizontal uncertainty (meter) 340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 73
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 34
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.07105
Epicentral distance of station farthest from the epicenter (degree) 0.62593
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 100530121
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-02 13:13:48

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 96264911
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-05 16:39:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2021-10-05T16:22:11.89 0.3 undecidable manual S 345 65.1903 92 0.49 63
IV.MMO1.EHZ. 2021-10-05T16:22:06.82 0.3 undecidable manual S 3 47.8188 92 0.05 71
IV.T0110.HHZ. 2021-10-05T16:22:06.50 0.3 undecidable manual S 124 47.619 92 -0.21 69
IV.ARRO.EHZ. 2021-10-05T16:22:05.70 0.3 undecidable manual S 286 44.9217 93 -0.31 67
IV.GAVE.EHZ. 2021-10-05T16:22:04.80 0.3 undecidable manual S 307 41.0256 93 -0.16 69
IV.CSP1.EHZ. 2021-10-05T16:22:03.98 0.6 undecidable manual P 354 69.4749 91 0.31 43
IV.FAGN.HHZ. 2021-10-05T16:22:02.90 0.3 undecidable manual S 133 32.745 94 0.15 70
IV.FDMO.HHZ. 2021-10-05T16:22:02.98 0.3 undecidable manual P 345 65.1903 92 -0.03 68
IV.FIAM.HNZ. 2021-10-05T16:22:01.00 0.6 undecidable manual S 213 26.6511 96 -0.12 48
IV.TERO.HHZ. 2021-10-05T16:22:01.70 0.3 undecidable manual S 56 30.4473 95 -0.46 67
IV.MMO1.EHZ. 2021-10-05T16:22:00.39 0.3 undecidable manual P 3 47.8188 92 0.06 70
IV.LNSS.HHZ. 2021-10-05T16:22:00.90 0.3 undecidable manual S 306 25.5522 96 0.06 73
IV.MC2.EHZ. 2021-10-05T16:22:00.29 0.6 undecidable manual P 350 49.8168 92 -0.36 44
IV.T0110.HHZ. 2021-10-05T16:22:00.32 0.3 undecidable manual P 124 47.619 92 0.02 70
IV.T1299.HNZ. 2021-10-05T16:21:59.10 0.3 undecidable manual S 357 18.3705 104 0.15 73
IV.SMA1.EHZ. 2021-10-05T16:21:59.10 0.3 undecidable manual S 10 18.2706 104 0.19 73
IV.ARRO.EHZ. 2021-10-05T16:21:59.84 0.3 undecidable manual P 286 44.9217 93 -0.05 71
IV.GIGS.HJZ. 2021-10-05T16:21:59.80 0.3 undecidable manual S 94 22.8549 98 -0.32 70
IV.NRCA.HHZ. 2021-10-05T16:21:59.12 0.6 undecidable manual P 340 43.0236 93 -0.48 43
IV.FAGN.HHZ. 2021-10-05T16:21:58.32 0.3 undecidable manual P 133 32.745 94 0.31 68
MN.AQU.HNZ. 2021-10-05T16:21:58.30 0.6 undecidable manual S 145 15.6732 110 0.05 49
IV.MTRA.EHE. 2021-10-05T16:21:58.22 0.6 undecidable manual P 15 32.9448 94 0.17 47
IV.GAVE.EHZ. 2021-10-05T16:21:58.98 0.6 undecidable manual P 307 41.0256 93 -0.31 45
IV.TERO.HHZ. 2021-10-05T16:21:57.51 0.3 undecidable manual P 56 30.4473 95 -0.16 71
IV.CAMP.HHZ. 2021-10-05T16:21:57.30 0.3 undecidable manual S 52 11.9769 122 -0.06 74
IV.FIAM.HNZ. 2021-10-05T16:21:57.28 0.3 undecidable manual P 213 26.6511 96 0.21 70
IV.RM33.EHZ. 2021-10-05T16:21:56.30 0.3 undecidable manual S 304 7.881 138 -0.23 72
IV.GIGS.HJZ. 2021-10-05T16:21:56.39 0.3 undecidable manual P 94 22.8549 98 -0.1 73
IV.LNSS.HHZ. 2021-10-05T16:21:56.97 0.1 undecidable manual P 306 25.5522 96 0.06 97
IV.SMA1.EHZ. 2021-10-05T16:21:55.99 0.3 undecidable manual P 10 18.2706 104 0.19 72
MN.AQU.HNZ. 2021-10-05T16:21:55.43 0.6 undecidable manual P 145 15.6732 110 0.01 50
IV.T1299.HNZ. 2021-10-05T16:21:55.95 0.1 undecidable manual P 357 18.3705 104 0.13 97
IV.CAMP.HHZ. 2021-10-05T16:21:55.09 0.1 undecidable manual P 52 11.9769 122 0.19 97
IV.RM33.EHZ. 2021-10-05T16:21:54.52 0.1 undecidable manual P 304 7.881 138 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.HNN. ML:1.6 0.0005211689499999999 0.1664 AML other m 2021-10-05T16:21:56.43
IV.RM33.EHN. ML:1.6 0.0004891918 0.1536 AML other m 2021-10-05T16:21:56.44
IV.RM33.HNE. ML:1.6 0.00043355339999999996 0.0896 AML other m 2021-10-05T16:21:57.01
IV.RM33.EHE. ML:1.6 0.00043919245 0.1024 AML other m 2021-10-05T16:21:57.02
IV.SMA1.EHE. ML:2.4 0.001745 0.34 AML other m 2021-10-05T16:21:59.60
IV.SMA1.EHN. ML:2.1 0.0008778254999999999 0.256 AML other m 2021-10-05T16:21:59.62
IV.LNSS.HHN. ML:1.5 0.00017749999999999998 0.2 AML other m 2021-10-05T16:22:01.26
IV.LNSS.HHE. ML:1.5 0.00015946985 0.1408 AML other m 2021-10-05T16:22:02.18
IV.TERO.HHN. ML:1.2 0.00007538824499999999 0.0384 AML other m 2021-10-05T16:22:02.35
IV.TERO.HHE. ML:1.3 0.00010219565 0.064 AML other m 2021-10-05T16:22:02.40
IV.FAGN.HHE. ML:1.8 0.000243 0.74 AML other m 2021-10-05T16:22:06.32
IV.ARRO.EHE. ML:1.7 0.00013659999999999999 0.2 AML other m 2021-10-05T16:22:06.66
IV.ARRO.EHN. ML:1.6 0.00011673701 0.1408 AML other m 2021-10-05T16:22:07.53
IV.GAVE.EHE. ML:1.4 0.000079867105 0.1152 AML other m 2021-10-05T16:22:07.71
IV.GAVE.EHN. ML:1.4 0.00008740000000000001 0.16 AML other m 2021-10-05T16:22:08.08
IV.FAGN.HHN. ML:1.6 0.0001874649 0.2816 AML other m 2021-10-05T16:22:08.19
IV.T0110.HHE. ML:1.6 0.000104207965 0.384 AML other m 2021-10-05T16:22:08.55
IV.T0110.HHN. ML:1.6 0.00010711343500000001 0.4608 AML other m 2021-10-05T16:22:08.68
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download