Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 03-10-2021 and time 23:41:00 (UTC) in region 2 km NE Barete (AQ)

A magnitude ML 1.5 earthquake occured in region: 2 km NE Barete (AQ), on

  • 03-10-2021 23:41:00 (UTC)
  • 04-10-2021 01:41:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4690, 13.2980 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
Capitignano AQ 6 665 5728
Cagnano Amiterno AQ 6 1369 7097
Montereale AQ 8 2581 9678
Scoppito AQ 11 3727 13405
Campotosto AQ 12 542 13947
Borbona RI 14 617 14564
L'Aquila AQ 16 69753 84317
Crognaleto TE 17 1297 85614
Posta RI 18 694 86308
Amatrice RI 18 2657 88965
Antrodoco RI 19 2588 91553
Tornimparte AQ 20 3187 94740
Lucoli AQ 20 1011 95751

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)
70 Km NE of Tivoli (56533 inhabitants)
70 Km NE of Guidonia Montecelio (88673 inhabitants)
70 Km W of Montesilvano (53738 inhabitants)
73 Km W of Chieti (51815 inhabitants)
73 Km SE of Foligno (57155 inhabitants)
75 Km W of Pescara (121014 inhabitants)
93 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 1.5 2021-10-03
23:41:00		 42.4693 13.298 12 2022-03-30
13:04:33		 Bollettino Sismico Italiano INGV 100420231
Reviewed
Rev100 		ML 1.5 2021-10-03
23:41:00		 42.4715 13.2953 11 2021-10-03
23:46:32		 Sala Sismica INGV-Roma 96185341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-03 23:41:00 ± 0.07
Latitude 42.4693 ± 0.0036
Longitude 13.2980 ± 0.0049
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 100420231

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 399
Semi-minor axis of confidence ellipse (meter) 100
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 195
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 72
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 33
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) 0.62593
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 96185341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-03 23:46:32

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 42
Type of magnitude ML
Reference to an origin 100420231
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-01 00:50:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MPAG.EHZ. 2021-10-03T23:41:22.24 3.0 negative manual P 0.11 0
IV.T0110.HHZ. 2021-10-03T23:41:16.20 0.6 undecidable manual S 124 47.4192 91 0.66 41
IV.MC2.EHZ. 2021-10-03T23:41:16.92 0.3 undecidable manual S 350 49.8168 91 0.72 58
IV.MMO1.EHZ. 2021-10-03T23:41:15.80 0.6 undecidable manual S 3 47.7189 91 0.15 46
IV.ARRO.EHZ. 2021-10-03T23:41:14.90 0.6 undecidable manual S 286 45.2214 91 -0.06 47
IV.NRCA.HHZ. 2021-10-03T23:41:14.20 0.6 undecidable manual S 340 43.1235 91 -0.19 46
IV.GAVE.EHZ. 2021-10-03T23:41:13.80 0.6 undecidable manual S 307 41.2254 91 -0.1 47
IV.CSP1.EHZ. 2021-10-03T23:41:12.75 3.0 negative manual P 69.4749 0.19 0
IV.FDMO.HHZ. 2021-10-03T23:41:11.95 3.0 negative manual P 65.1903 0.05 0
IV.MF5.EHZ. 2021-10-03T23:41:11.53 1.0 positive manual P 13 58.9965 91 0.58 20
IV.MTRA.EHZ. 2021-10-03T23:41:11.20 0.6 undecidable manual S 14 32.8449 92 -0.47 44
IV.TERO.HHZ. 2021-10-03T23:41:10.50 0.6 undecidable manual S 56 30.2475 92 -0.47 44
IV.MC2.EHZ. 2021-10-03T23:41:09.57 0.3 undecidable manual P 350 49.8168 91 0.03 70
IV.FIAM.HHZ. 2021-10-03T23:41:09.80 0.6 undecidable manual S 214 26.751 92 -0.25 47
IV.MMO1.EHZ. 2021-10-03T23:41:09.25 1.0 undecidable manual P 3 47.7189 91 0.03 23
IV.T0110.HHZ. 2021-10-03T23:41:09.31 1.0 positive manual P 124 47.4192 91 0.15 23
IV.LNSS.HHZ. 2021-10-03T23:41:09.70 0.6 undecidable manual S 305 25.752 93 -0.07 49
IV.NRCA.HHZ. 2021-10-03T23:41:08.32 0.1 negative manual P 340 43.1235 91 -0.18 93
IV.GAVE.EHZ. 2021-10-03T23:41:08.10 0.6 positive manual P 307 41.2254 91 -0.11 47
IV.ARRO.EHZ. 2021-10-03T23:41:08.66 0.6 negative manual P 286 45.2214 91 -0.17 46
IV.GIGS.HHN. 2021-10-03T23:41:08.49 0.6 undecidable manual S 94 22.5552 93 -0.43 45
IV.SMA1.EHZ. 2021-10-03T23:41:07.90 0.6 undecidable manual S 10 18.1707 96 0.16 48
MN.AQU.HNN. 2021-10-03T23:41:07.03 1.0 undecidable manual S 146 15.4734 101 -0.02 25
IV.FAGN.HHZ. 2021-10-03T23:41:06.97 1.0 undecidable manual P 134 32.5452 92 0.1 24
IV.FIAM.HHZ. 2021-10-03T23:41:06.06 0.3 undecidable manual P 214 26.751 92 0.08 73
IV.MTRA.EHZ. 2021-10-03T23:41:06.72 0.6 undecidable manual P 14 32.8449 92 -0.2 47
IV.CAMP.HHE. 2021-10-03T23:41:06.00 0.6 undecidable manual S 51 11.6772 116 -0.09 49
IV.TERO.HHZ. 2021-10-03T23:41:06.32 1.0 undecidable manual P 56 30.2475 92 -0.2 23
IV.GIGS.HHN. 2021-10-03T23:41:05.10 0.3 undecidable manual P 94 22.5552 93 -0.23 70
IV.LNSS.HHZ. 2021-10-03T23:41:05.82 0.1 negative manual P 305 25.752 93 0 98
IV.RM33.EHZ. 2021-10-03T23:41:05.10 0.6 undecidable manual S 303 8.0808 133 -0.2 49
IV.T1299.EHN. 2021-10-03T23:41:04.79 0.1 negative manual P 356 18.3705 96 0.1 98
MN.AQU.HNN. 2021-10-03T23:41:04.31 0.1 undecidable manual P 146 15.4734 101 0.06 100
IV.SMA1.EHZ. 2021-10-03T23:41:04.78 0.1 positive manual P 10 18.1707 96 0.12 97
IV.RM33.EHZ. 2021-10-03T23:41:03.37 0.1 negative manual P 303 8.0808 133 0.12 100
IV.CAMP.HHE. 2021-10-03T23:41:03.85 0.1 positive manual P 51 11.6772 116 0.15 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.HNN. ML:1.4 0.0003121455 0.1664 AML other m 2021-10-03T23:41:05.25
IV.RM33.EHN. ML:1.3 0.00026853140000000005 0.1664 AML other m 2021-10-03T23:41:05.25
IV.RM33.EHE. ML:1.3 0.00027 0.1 AML other m 2021-10-03T23:41:05.83
IV.RM33.HNE. ML:1.3 0.0002665467 0.1024 AML other m 2021-10-03T23:41:05.78
IV.FIAM.HNE. ML:2.7 0.0027689065 1.3408 AML other m 2021-10-03T23:41:08.31
IV.SMA1.EHE. ML:2.2 0.0012013280000000002 0.3328 AML other m 2021-10-03T23:41:08.41
IV.SMA1.EHN. ML:1.8 0.0005945 0.28 AML other m 2021-10-03T23:41:08.43
IV.TERO.HNE. ML:1.7 0.00023655094999999998 0.3488 AML other m 2021-10-03T23:41:08.50
IV.TERO.HNN. ML:1.8 0.00029912315 0.6688 AML other m 2021-10-03T23:41:08.93
IV.GAVE.HNE. ML:1.6 0.0001326282 0.7456 AML other m 2021-10-03T23:41:09.14
IV.LNSS.HHN. ML:1.3 0.000118 1.1 AML other m 2021-10-03T23:41:10.07
IV.FIAM.HHE. ML:0.8 0.000029250000000000003 0.14 AML other m 2021-10-03T23:41:10.43
IV.LNSS.HHE. ML:1.3 0.00011199999999999998 1.28 AML other m 2021-10-03T23:41:10.21
IV.FIAM.HHN. ML:0.7 0.000025750000000000002 0.46 AML other m 2021-10-03T23:41:12.18
IV.FIAM.HNN. ML:1.4 0.000120369965 0.4832 AML other m 2021-10-03T23:41:12.29
IV.TERO.HHN. ML:1.0 0.00004701225000000001 0.1536 AML other m 2021-10-03T23:41:12.79
IV.NRCA.HHN. ML:1.4 0.000074804175 0.1152 AML other m 2021-10-03T23:41:15.08
IV.NRCA.HHE. ML:1.7 0.000144 0.14 AML other m 2021-10-03T23:41:15.13
IV.NRCA.HNE. ML:1.7 0.000151956595 0.1408 AML other m 2021-10-03T23:41:15.20
IV.FAGN.HHN. ML:1.4 0.000118372835 0.2688 AML other m 2021-10-03T23:41:15.49
IV.LNSS.HNE. ML:1.5 0.000181446785 0.8672 AML other m 2021-10-03T23:41:15.66
IV.MF5.EHE. ML:1.8 0.00014110729999999998 0.7264 AML other m 2021-10-03T23:41:16.45
IV.ARRO.EHE. ML:1.4 0.00008005000000000001 0.54 AML other m 2021-10-03T23:41:16.58
IV.GAVE.EHE. ML:1.2 0.00005235911999999999 0.1408 AML other m 2021-10-03T23:41:16.58
IV.ARRO.EHN. ML:1.4 0.00007865 0.78 AML other m 2021-10-03T23:41:16.35
IV.GAVE.EHN. ML:1.2 0.00005525 0.58 AML other m 2021-10-03T23:41:16.90
IV.LNSS.HNN. ML:1.5 0.00018736323500000002 0.7648 AML other m 2021-10-03T23:41:17.22
IV.T0110.HHE. ML:1.4 0.00006539467 0.2592 AML other m 2021-10-03T23:41:17.36
IV.T0110.HHN. ML:1.4 0.00007445470000000001 0.32 AML other m 2021-10-03T23:41:17.34
IV.FDMO.HHE. ML:1.1 0.000024389254999999997 0.3872 AML other m 2021-10-03T23:41:17.54
IV.FDMO.HHN. ML:1.2 0.00003118335 1.0976 AML other m 2021-10-03T23:41:18.69
IV.FAGN.HHE. ML:1.5 0.00014749999999999998 0.4 AML other m 2021-10-03T23:41:18.43
IV.TERO.HHE. ML:1.5 0.0001585332 1.216 AML other m 2021-10-03T23:41:19.21
IV.NRCA.HNN. ML:2.0 0.0003210173 0.08 AML other m 2021-10-03T23:41:19.40
IV.GAVE.HNN. ML:1.8 0.00018546445 0.8352 AML other m 2021-10-03T23:41:24.19
IV.MF5.EHN. ML:1.7 0.00010280341500000001 0.3392 AML other m 2021-10-03T23:41:28.35
IV.MPAG.EHN. ML:2.0 0.000056037989999999994 0.5216 AML other m 2021-10-03T23:41:33.88
IV.CSP1.EHN. ML:1.8 0.000114678065 0.7488 AML other m 2021-10-03T23:41:39.62
IV.CSP1.EHE. ML:1.9 0.00013112172 0.176 AML other m 2021-10-03T23:41:41.29
IV.MPAG.HNN. ML:2.6 0.0002194886 0.3104 AML other m 2021-10-03T23:41:47.78
IV.MPAG.EHE. ML:1.8 0.000040806685 0.5024 AML other m 2021-10-03T23:41:51.30
IV.MPAG.HNE. ML:2.3 0.0001296935 1.0144 AML other m 2021-10-03T23:41:58.28
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