Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 11-08-2023 and time 20:00:34 (UTC) in region 2 km SW Barete (AQ)

A magnitude ML 2.1 earthquake occured in region: 2 km SW Barete (AQ), on

  • 11-08-2023 20:00:34 (UTC)
  • 11-08-2023 22:00:34 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4400, 13.2730 at 14 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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 2 4326 5063
Cagnano Amiterno AQ 5 1369 6432
Scoppito AQ 8 3727 10159
Capitignano AQ 9 665 10824
Montereale AQ 10 2581 13405
Borbona RI 14 617 14022
L'Aquila AQ 14 69753 83775
Campotosto AQ 15 542 84317
Antrodoco RI 16 2588 86905
Tornimparte AQ 17 3187 90092
Posta RI 17 694 90786
Lucoli AQ 17 1011 91797
Micigliano RI 18 127 91924
Borgo Velino RI 18 972 92896

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km NW of L'Aquila (69753 inhabitants)
43 Km SW of Teramo (54892 inhabitants)
53 Km E of Terni (111501 inhabitants)
66 Km NE of Tivoli (56533 inhabitants)
66 Km NE of Guidonia Montecelio (88673 inhabitants)
72 Km W of Montesilvano (53738 inhabitants)
74 Km SE of Foligno (57155 inhabitants)
74 Km W of Chieti (51815 inhabitants)
77 Km W of Pescara (121014 inhabitants)
89 Km NE of Roma (2864731 inhabitants)
93 Km NE of Velletri (53303 inhabitants)
96 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
Reviewed
Rev100 		ML 2.1 2023-08-11
20:00:34		 42.4398 13.2733 14 2023-08-11
20:11:59		 Sala Sismica INGV-Roma 120038911
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-08-11 20:00:34 ± 0.09
Latitude 42.4398 ± 0.0036
Longitude 13.2733 ± 0.0061
Depth (km) 14 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 120038911

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 405
Semi-minor axis of confidence ellipse (meter) 268
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 257
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) 67
Number of associated phases, regardless of their use for origin computation 66
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.64032
Number of stations at which the event was observed 51
Number of stations from which data was used for origin computation 16
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 44
Type of magnitude ML
Reference to an origin 120038911
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-08-11 20:11:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OX.MARN.HHZ. 2023-08-11T20:02:29.31 3.0 undecidable manual Sg 18.84 0
IV.SELL.HHZ. 2023-08-11T20:02:20.48 3.0 undecidable manual Sn 2.44 0
IV.SPS2.HHZ. 2023-08-11T20:02:17.06 3.0 undecidable manual Sg 8.33 0
IV.SBPO.HNZ. 2023-08-11T20:02:16.34 3.0 undecidable manual Sg 16.139999 0
IV.HPAC.HHZ. 2023-08-11T20:02:13.03 3.0 undecidable manual Pg 21.08 0
GU.TRAV.HHZ. 2023-08-11T20:02:06.85 3.0 negative manual Pg 20.530001 0
CH.BERNI.HHZ. 2023-08-11T20:01:56.61 3.0 positive manual Pg 15.54 0
GU.MGRO.HHZ. 2023-08-11T20:01:53.09 3.0 undecidable manual Pg 17.540001 0
GU.CARD.HHZ. 2023-08-11T20:01:52.36 3.0 undecidable manual Sn 6.29 0
GU.IMI.HHZ. 2023-08-11T20:01:38.46 3.0 undecidable manual Pn 4.38 0
IV.MAGA.HHZ. 2023-08-11T20:01:31.78 3.0 positive manual Pn 1.19 0
IV.MTMR.EHZ. 2023-08-11T20:01:22.11 3.0 undecidable manual Sn -0.14 0
IV.MPAG.EHZ. 2023-08-11T20:01:18.10 3.0 undecidable manual Sg 3.11 0
IV.ARVD.HHZ. 2023-08-11T20:01:12.20 3.0 undecidable manual Sg 1.09 0
IV.CING.HHZ. 2023-08-11T20:01:06.78 3.0 undecidable manual S -0.73 0
IV.SNTG.HHZ. 2023-08-11T20:01:04.63 3.0 undecidable manual S -0.71 0
IV.ATMI.HHZ. 2023-08-11T20:00:58.67 3.0 positive manual Pg 5.08 0
IV.MPAG.EHZ. 2023-08-11T20:00:58.63 3.0 positive manual Pg 3.43 0
IV.ATVO.HHZ. 2023-08-11T20:00:57.07 3.0 positive manual Pg 3.65 0
IV.CSP1.EHZ. 2023-08-11T20:00:56.64 3.0 undecidable manual S -3.95 0
IV.MOMA.HHZ. 2023-08-11T20:00:56.55 3.0 undecidable manual S -2.01 0
IV.FDMO.HHZ. 2023-08-11T20:00:56.38 3.0 undecidable manual S -3.18 0
IV.SACS.HHZ. 2023-08-11T20:00:56.09 3.0 undecidable manual Pg 4.57 0
IV.SSFR.HHZ. 2023-08-11T20:00:54.81 3.0 negative manual Pg 2.21 0
IV.NARO.HHZ. 2023-08-11T20:00:54.48 3.0 undecidable manual Pn -1.05 0
IV.MTCE.HHZ. 2023-08-11T20:00:54.07 0.3 undecidable manual S 224 63.5919 93 0.35 64
IV.MGAB.HHZ. 2023-08-11T20:00:53.00 3.0 negative manual P 2.64 0
IV.CERT.HHZ. 2023-08-11T20:00:53.06 0.3 undecidable manual S 204 59.496 93 0.44 64
IV.CING.HHZ. 2023-08-11T20:00:52.18 3.0 positive manual P 1.18 0
IV.GIUL.HHZ. 2023-08-11T20:00:51.94 3.0 undecidable manual S -0.92 0
IV.ATCC.EHZ. 2023-08-11T20:00:51.10 3.0 positive manual P 1.17 0
IV.MMO1.EHZ. 2023-08-11T20:00:51.01 3.0 undecidable manual S -4.56 0
IV.SNTG.HHZ. 2023-08-11T20:00:50.70 3.0 positive manual P 0.92 0
IV.PTQR.HHZ. 2023-08-11T20:00:49.33 0.3 undecidable manual S 167 47.5191 94 -0.11 69
IV.ASSB.HHZ. 2023-08-11T20:00:48.46 3.0 undecidable manual P 0.34 0
IV.MNTT.EHZ. 2023-08-11T20:00:48.33 3.0 positive manual P 1.33 0
IV.MML1.EHZ. 2023-08-11T20:00:48.14 3.0 negative manual P 0.32 0
IV.CSP1.EHZ. 2023-08-11T20:00:47.58 3.0 positive manual P 0.47 0
IV.FDMO.HHZ. 2023-08-11T20:00:46.29 3.0 positive manual P -0.24 0
IV.FAGN.HHZ. 2023-08-11T20:00:46.31 0.3 undecidable manual S 127 31.9458 97 1.01 54
IV.GUMA.HHZ. 2023-08-11T20:00:46.78 3.0 negative manual P 0.11 0
IV.INTR.HHZ. 2023-08-11T20:00:46.56 0.3 undecidable manual P 132 70.2741 92 0.03 68
IV.RCAV.EHZ. 2023-08-11T20:00:46.75 0.1 undecidable manual P 202 71.0733 92 0.1 89
IV.MTCE.HHZ. 2023-08-11T20:00:45.20 0.1 undecidable manual P 224 63.5919 93 -0.3 87
IV.MF5.EHZ. 2023-08-11T20:00:45.49 3.0 positive manual P -0.26 0
IV.CERT.HHZ. 2023-08-11T20:00:44.67 0.3 undecidable manual P 204 59.496 93 -0.2 67
IV.LNSS.HHZ. 2023-08-11T20:00:44.01 0.3 undecidable manual S 314 26.2515 100 0.2 71
IV.GIGS.HHZ. 2023-08-11T20:00:43.19 0.3 undecidable manual S 86 24.5532 102 -0.17 71
IV.T0110.HHZ. 2023-08-11T20:00:43.00 0.3 undecidable manual P 119 47.4192 94 -0.01 71
IV.SMA1.EHZ. 2023-08-11T20:00:43.04 0.3 undecidable manual S 13 21.7671 105 0.41 68
IV.FIAM.HHZ. 2023-08-11T20:00:42.59 0.3 undecidable manual S 214 22.9548 103 -0.34 69
IV.ARRO.EHZ. 2023-08-11T20:00:42.38 0.1 undecidable manual P 291 44.3223 95 -0.15 93
IV.PTQR.HHZ. 2023-08-11T20:00:42.90 0.1 undecidable manual P 167 47.5191 94 -0.13 92
IV.NRCA.HHZ. 2023-08-11T20:00:42.63 3.0 negative manual P -0.75 0
IV.GAVE.EHZ. 2023-08-11T20:00:41.96 0.1 undecidable manual P 312 41.7249 95 -0.18 93
IV.MTRA.EHZ. 2023-08-11T20:00:41.17 3.0 negative manual P -0.59 0
IV.TERO.HNZ. 2023-08-11T20:00:40.57 0.3 undecidable manual P 53 33.8439 97 -0.35 68
MN.AQU.HNZ. 2023-08-11T20:00:40.73 0.3 undecidable manual S 131 14.3745 119 -0.07 74
IV.FAGN.HHZ. 2023-08-11T20:00:40.73 0.1 undecidable manual P 127 31.9458 97 0.09 96
IV.GIGS.HHZ. 2023-08-11T20:00:39.32 0.1 undecidable manual P 86 24.5532 102 -0.19 95
IV.SMA1.EHZ. 2023-08-11T20:00:39.21 0.1 undecidable manual P 13 21.7671 105 0.12 97
IV.RM33.EHZ. 2023-08-11T20:00:39.55 0.6 undecidable manual S 328 9.0798 137 -0.13 50
IV.FIAM.HHZ. 2023-08-11T20:00:39.22 0.1 undecidable manual P 214 22.9548 103 -0.06 98
IV.LNSS.HHZ. 2023-08-11T20:00:39.78 0.1 undecidable manual P 314 26.2515 100 0 98
MN.AQU.HNZ. 2023-08-11T20:00:38.02 0.1 undecidable manual P 131 14.3745 119 -0.01 100
IV.RM33.EHZ. 2023-08-11T20:00:37.49 0.3 undecidable manual P 328 9.0798 137 0.1 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GIGS.HHE. ML:2.0 0.0005655 0.16 AML other m 2023-08-11T20:00:43.62
IV.GIGS.HHN. ML:1.9 0.00041299999999999996 0.18 AML other m 2023-08-11T20:00:43.64
IV.LNSS.HHE. ML:2.3 0.0009745 0.14 AML other m 2023-08-11T20:00:44.75
IV.LNSS.HHN. ML:2.2 0.0008660296499999999 0.2176 AML other m 2023-08-11T20:00:46.29
IV.TERO.HNE. ML:1.9 0.00033464270000000003 0.1152 AML other m 2023-08-11T20:00:46.29
IV.MTRA.HNN. ML:2.5 0.001145 0.18 AML other m 2023-08-11T20:00:46.30
IV.MTRA.EHN. ML:2.5 0.0011694754999999999 0.1792 AML other m 2023-08-11T20:00:46.30
IV.MTRA.EHE. ML:2.3 0.00083700265 0.0768 AML other m 2023-08-11T20:00:46.51
IV.MTRA.HNE. ML:2.3 0.00084342965 0.0768 AML other m 2023-08-11T20:00:46.51
IV.TERO.HHN. ML:2.1 0.0005877771000000001 0.1408 AML other m 2023-08-11T20:00:46.55
IV.TERO.HNN. ML:2.1 0.0005705183 0.1408 AML other m 2023-08-11T20:00:46.56
IV.TERO.HHE. ML:2.2 0.00063672825 0.1408 AML other m 2023-08-11T20:00:47.01
IV.GAVE.EHE. ML:2.1 0.00038438305 0.2944 AML other m 2023-08-11T20:00:55.32
IV.GAVE.EHN. ML:2.2 0.00045759269999999996 0.192 AML other m 2023-08-11T20:00:50.74
IV.ARRO.EHN. ML:1.9 0.0002364238 0.1536 AML other m 2023-08-11T20:00:52.66
IV.T0110.HHN. ML:2.3 0.0006145 0.3 AML other m 2023-08-11T20:00:53.43
IV.ARRO.EHE. ML:1.9 0.00025993405000000004 0.2048 AML other m 2023-08-11T20:00:50.06
IV.T0110.HHE. ML:2.4 0.0006724999499999999 0.256 AML other m 2023-08-11T20:00:54.44
IV.MF5.EHE. ML:2.1 0.000242 0.44 AML other m 2023-08-11T20:00:55.86
IV.MF5.EHN. ML:2.1 0.00026699305 0.2816 AML other m 2023-08-11T20:00:57.10
IV.FDMO.HHE. ML:1.9 0.00014850000000000003 0.2 AML other m 2023-08-11T20:00:57.54
IV.FDMO.HHN. ML:1.8 0.00009895 1.6 AML other m 2023-08-11T20:00:57.83
IV.INTR.HHE. ML:1.9 0.00013350000000000002 0.28 AML other m 2023-08-11T20:00:58.74
IV.RCAV.EHE. ML:1.7 0.00008730000000000001 0.36 AML other m 2023-08-11T20:00:59.43
IV.INTR.HHN. ML:2.1 0.000214 0.42 AML other m 2023-08-11T20:00:59.29
IV.CSP1.EHE. ML:2.5 0.000513 0.32 AML other m 2023-08-11T20:00:59.70
IV.CSP1.EHN. ML:2.3 0.0003397057 0.192 AML other m 2023-08-11T20:00:59.07
IV.MML1.EHN. ML:1.8 0.00009275535499999999 0.2688 AML other m 2023-08-11T20:01:05.82
IV.RCAV.EHN. ML:1.8 0.00011155000000000001 0.94 AML other m 2023-08-11T20:01:00.20
IV.MML1.EHE. ML:1.8 0.000087106935 0.1408 AML other m 2023-08-11T20:00:59.99
IV.MNTT.EHN. ML:2.3 0.00030802505000000004 0.256 AML other m 2023-08-11T20:01:04.60
IV.ASSB.HHN. ML:2.0 0.0001305 0.18 AML other m 2023-08-11T20:01:02.76
IV.MNTT.EHE. ML:2.3 0.000286 0.34 AML other m 2023-08-11T20:01:03.14
IV.ASSB.HHE. ML:1.9 0.00010785 0.4 AML other m 2023-08-11T20:01:04.76
IV.ATCC.EHE. ML:1.9 0.000073881185 0.4608 AML other m 2023-08-11T20:01:11.67
IV.CING.HHE. ML:2.0 0.00008609999999999999 0.24 AML other m 2023-08-11T20:01:07.99
IV.CING.HHN. ML:2.0 0.00009739999999999998 0.12 AML other m 2023-08-11T20:01:08.70
IV.ATCC.EHN. ML:2.0 0.00010155 0.34 AML other m 2023-08-11T20:01:10.25
IV.MGAB.HHE. ML:2.0 0.00009665 0.42 AML other m 2023-08-11T20:01:14.45
IV.MGAB.HHN. ML:1.9 0.00006355 0.72 AML other m 2023-08-11T20:01:21.45
IV.LNSS.HNE. ML:2.2 0.0008149227500000001 0.1536 AML other m 2023-08-11T20:00:44.75
IV.LNSS.HNN. ML:2.2 0.0007852336 0.2432 AML other m 2023-08-11T20:00:46.30
IV.GAVE.HNE. ML:2.1 0.00040734304999999997 0.2944 AML other m 2023-08-11T20:00:55.32
IV.MML1.HNN. ML:1.9 0.0001191296 0.2688 AML other m 2023-08-11T20:01:02.44
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
Waveforms Seismic signals in miniseed + resp format Download