Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 10-08-2023 and time 01:59:40 (Italy) in region 6 km S Ala (TN)

A magnitude ML 0.8 earthquake occured in region: 6 km S Ala (TN), on

  • 09-08-2023 23:59:40 (UTC)
  • 10-08-2023 01:59:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.7060, 11.0270 at 8 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
Ala TN 6 8913 8913
Erbezzo VR 7 740 9653
Avio TN 7 4133 13786
Bosco Chiesanuova VR 9 3600 17386
Sant'Anna d'Alfaedo VR 10 2553 19939
Vallarsa TN 11 1395 21334
Brentino Belluno VR 12 1395 22729
Velo Veronese VR 12 770 23499
Roverè Veronese VR 13 2115 25614
Selva di Progno VR 14 933 26547
Ferrara di Monte Baldo VR 14 226 26773
Brentonico TN 14 4015 30788
Cerro Veronese VR 15 2471 33259
Recoaro Terme VI 16 6453 39712
Mori TN 17 9678 49390
San Mauro di Saline VR 17 582 49972
Grezzana VR 18 10788 60760
Dolcè VR 18 2625 63385
Malcesine VR 18 3736 67121
Crespadoro VI 18 1330 68451
Valli del Pasubio VI 19 3242 71693
Badia Calavena VR 19 2649 74342
Trambileno TN 19 1452 75794
Marano di Valpolicella VR 19 3175 78969

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km N of Verona (258765 inhabitants)
41 Km S of Trento (117317 inhabitants)
44 Km W of Vicenza (112953 inhabitants)
65 Km E of Brescia (196480 inhabitants)
74 Km W of Padova (210401 inhabitants)
92 Km SW of Bolzano (106441 inhabitants)
92 Km NW of Rovigo (51867 inhabitants)
95 Km W of Treviso (83731 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 0.8 2023-08-09
23:59:40		 45.7055 11.0268 8 2023-08-10
00:06:33		 Sala Sismica INGV-Roma 119979381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-08-09 23:59:40 ± 0.42
Latitude 45.7055 ± 0.0081
Longitude 11.0268 ± 0.0116
Depth (km) 8 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 119979381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 899
Semi-minor axis of confidence ellipse (meter) 226
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 101
Circular confidence region, given by single value of horizontal uncertainty (meter) 900.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 120
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.28688
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 119979381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-08-10 00:06:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MAGA.HHZ. 2023-08-09T23:59:50.95 0.6 undecidable manual S 284 31.8459 104 -0.67 55
SI.LUSI.HHZ. 2023-08-09T23:59:49.93 0.6 undecidable manual S 347 28.8489 105 -0.72 55
IV.ZEN8.EHE. 2023-08-09T23:59:48.26 0.6 undecidable manual S 252 24.0537 108 -0.78 54
IV.TREG.EHZ. 2023-08-09T23:59:48.18 0.6 undecidable manual S 153 22.755 109 -0.43 61
ST.DOSS.HHZ. 2023-08-09T23:59:48.23 0.6 undecidable manual S 33 23.0547 108 -0.5 60
ST.VARA.EHZ. 2023-08-09T23:59:47.05 0.6 undecidable manual S 323 16.7721 115 0.38 62
SI.LUSI.HHZ. 2023-08-09T23:59:46.39 1.0 negative manual P 347 28.8489 105 0.13 32
IV.MAGA.HHZ. 2023-08-09T23:59:46.92 0.6 positive manual P 284 31.8459 104 0.09 65
IV.TREG.EHZ. 2023-08-09T23:59:45.35 0.6 positive manual P 153 22.755 109 0.27 63
ST.DOSS.HHZ. 2023-08-09T23:59:45.52 0.6 positive manual P 33 23.0547 108 0.37 62
ST.PDN3.EHZ. 2023-08-09T23:59:45.88 0.3 undecidable manual P 100
IV.MBAL.HHE. 2023-08-09T23:59:45.76 0.6 undecidable manual S 266 13.0758 120 0.23 65
IV.ZEN8.EHE. 2023-08-09T23:59:45.34 0.3 undecidable manual P 252 24.0537 108 0.01 100
ST.VARA.EHZ. 2023-08-09T23:59:44.62 0.6 negative manual P 323 16.7721 115 0.65 57
IV.MBAL.HHE. 2023-08-09T23:59:43.86 0.3 undecidable manual P 266 13.0758 120 0.55 90
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
ST.VARA.EHN. ML:0.5 0.00003235000000000001 0.12 AML other m 2023-08-09T23:59:47.26
ST.VARA.EHE. ML:0.8 0.0000566 0.22 AML other m 2023-08-09T23:59:47.33
IV.TREG.EHN. ML:0.6 0.0000246 0.14 AML other m 2023-08-09T23:59:48.37
IV.TREG.EHE. ML:0.6 0.00002639556 0.2048 AML other m 2023-08-09T23:59:48.37
ST.DOSS.HHN. ML:0.4 0.000016329025 0.1024 AML other m 2023-08-09T23:59:48.76
ST.DOSS.HHE. ML:0.2 0.000011672937000000001 0.1024 AML other m 2023-08-09T23:59:48.88
SI.LUSI.HHN. ML:0.8 0.00002835 0.1 AML other m 2023-08-09T23:59:50.18
SI.LUSI.HHE. ML:0.5 0.000014221661 0.1024 AML other m 2023-08-09T23:59:50.14
IV.MAGA.HHN. ML:0.9 0.000037749999999999996 0.18 AML other m 2023-08-09T23:59:51.21
IV.MAGA.HHE. ML:0.9 0.00003685 0.22 AML other m 2023-08-09T23:59:51.41
ST.VARA.HNE. ML:0.8 0.00006362323500000001 0.7168 AML other m 2023-08-09T23:59:50.60
ST.VARA.HNN. ML:0.9 0.000074817267 0.7808 AML other m 2023-08-09T23:59:53.63
IV.TREG.HNE. ML:1.1 0.000090182495 0.4736 AML other m 2023-08-09T23:59:47.81
IV.TREG.HNN. ML:1.3 0.0001230449 0.7552 AML other m 2023-08-09T23:59:48.28
ST.DOSS.HNE. ML:0.8 0.000045907225 0.6784 AML other m 2023-08-09T23:59:47.14
ST.DOSS.HNN. ML:1.0 0.00007139720499999999 1.1008 AML other m 2023-08-09T23:59:46.78
IV.MAGA.HNE. ML:1.6 0.00017983985 0.6144 AML other m 2023-08-09T23:59:47.14
IV.MAGA.HNN. ML:0.9 0.000032844235 172799.1424 AML other m 2023-08-09T00:00:00.36
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