Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 23-05-2017 and time 13:53:15 (Italy) in region 3 km SW Vallarsa (TN)

A magnitude ML 1.2 earthquake occured in region: 3 km SW Vallarsa (TN), on

  • 23-05-2017 11:53:15 (UTC)
  • 23-05-2017 13:53:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.7670, 11.0830 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.

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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
Vallarsa TN 3 1395 1395
Ala TN 6 8913 10308
Avio TN 11 4133 14441
Brentonico TN 12 4015 18456
Trambileno TN 12 1452 19908
Mori TN 13 9678 29586
Recoaro Terme VI 13 6453 36039
Terragnolo TN 14 716 36755
Rovereto TN 14 39289 76044
Valli del Pasubio VI 14 3242 79286
Posina VI 14 566 79852
Isera TN 15 2735 82587
Erbezzo VR 15 740 83327
Laghi VI 16 133 83460
Bosco Chiesanuova VR 17 3600 87060
Nogaredo TN 17 2065 89125
Volano TN 17 3169 92294
Villa Lagarina TN 17 3778 96072
Ronzo-Chienis TN 17 976 97048
Selva di Progno VR 18 933 97981
Velo Veronese VR 18 770 98751
Folgaria TN 18 3191 101942
Nomi TN 18 1398 103340
Pomarolo TN 18 2452 105792
Torrebelvicino VI 18 5917 111709
Sant'Anna d'Alfaedo VR 19 2553 114262
Calliano TN 19 1807 116069
Brentino Belluno VR 19 1395 117464
Roverè Veronese VR 19 2115 119579
Nago-Torbole TN 20 2867 122446
Crespadoro VI 20 1330 123776
Besenello TN 20 2654 126430

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km S of Trento (117317 inhabitants)
37 Km N of Verona (258765 inhabitants)
44 Km NW of Vicenza (112953 inhabitants)
72 Km E of Brescia (196480 inhabitants)
74 Km NW of Padova (210401 inhabitants)
84 Km S of Bolzano (106441 inhabitants)
91 Km W of Treviso (83731 inhabitants)
95 Km NW of Rovigo (51867 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 1.2 2017-05-23
11:53:15		 45.7672 11.083 11 2018-07-06
10:38:20		 Bollettino Sismico Italiano INGV 51474561
Reviewed
Rev100 		ML 1.2 2017-05-23
11:53:15		 45.7733 11.0638 10 2017-05-23
11:59:24		 Sala Sismica INGV-Roma 45688961
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-05-23 11:53:15 ± 0.08
Latitude 45.7672 ± 0.0063
Longitude 11.0830 ± 0.0103
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 51474561

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 870
Semi-minor axis of confidence ellipse (meter) 650
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 245
Circular confidence region, given by single value of horizontal uncertainty (meter) 870.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 130
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
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) 0.12051
Epicentral distance of station farthest from the epicenter (degree) 0.48923
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 51474561
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-10-31 09:39:36

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 7
Type of magnitude ML
Reference to an origin 45688961
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-05-23 11:59:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MAGA.HHZ. 2017-05-23T11:53:27.12 0.3 undecidable manual S 272 35.1426 90 -0.28 69
ST.GAGG.HHZ. 2017-05-23T11:53:27.43 0.3 undecidable manual S 345 36.4413 90 -0.3 69
IV.CTI.HHZ. 2017-05-23T11:53:25.31 0.3 undecidable manual P 54 53.7018 90 0.05 70
IV.MABI.HHZ. 2017-05-23T11:53:25.67 0.6 undecidable manual P 306 54.3012 90 0.32 44
SI.LUSI.HHZ. 2017-05-23T11:53:24.01 0.3 undecidable manual S 333 23.8539 90 -0.39 69
ST.GAGG.HHZ. 2017-05-23T11:53:22.78 0.1 undecidable manual P 345 36.4413 90 0.19 94
ST.VARA.HNZ. 2017-05-23T11:53:22.18 0.6 undecidable manual S 294 15.873 90 -0.07 50
IV.MAGA.HHZ. 2017-05-23T11:53:22.53 0.1 undecidable manual P 272 35.1426 90 0.13 95
IV.ROVR.HHZ. 2017-05-23T11:53:21.11 0.6 undecidable manual S 184 13.3755 94 -0.48 46
ST.DOSS.HHZ. 2017-05-23T11:53:21.72 0.3 undecidable manual S 33 14.9739 90 -0.31 72
SI.LUSI.HHZ. 2017-05-23T11:53:20.82 0.1 undecidable manual P 333 23.8539 90 0.16 97
IV.ROVR.HHZ. 2017-05-23T11:53:19.14 0.1 positive manual P 184 13.3755 94 0.1 100
ST.DOSS.HHZ. 2017-05-23T11:53:19.50 0.1 undecidable manual P 33 14.9739 90 0.2 97
ST.VARA.HNZ. 2017-05-23T11:53:19.61 0.1 undecidable manual P 294 15.873 90 0.19 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ROVR.HHE. ML:1.0 0.00011 0.38 AML other m 2017-05-23T11:53:21.25
IV.ROVR.HHN. ML:1.6 0.0004005 1 AML other m 2017-05-23T11:53:21.36
IV.ROVR.HNN. ML:2.0 0.000926 1 AML other m 2017-05-23T11:53:21.36
ST.DOSS.HHN. ML:1.2 0.000133 1.7 AML other m 2017-05-23T11:53:21.90
ST.DOSS.HHE. ML:1.2 0.0001455 0.1 AML other m 2017-05-23T11:53:22.10
IV.ROVR.HNE. ML:1.6 0.00044100000000000004 0.66 AML other m 2017-05-23T11:53:22.58
SI.LUSI.HHE. ML:1.0 0.000052850000000000004 0.66 AML other m 2017-05-23T11:53:24.26
SI.LUSI.HHN. ML:1.2 0.00008499999999999999 0.14 AML other m 2017-05-23T11:53:24.37
IV.MAGA.HHN. ML:1.1 0.000054 1.04 AML other m 2017-05-23T11:53:27.18
ST.GAGG.HHE. ML:0.9 0.00002965 1.1 AML other m 2017-05-23T11:53:28.71
ST.GAGG.HHN. ML:1.0 0.000032550000000000005 0.86 AML other m 2017-05-23T11:53:28.08
IV.MAGA.HHE. ML:1.3 0.0000737 1.64 AML other m 2017-05-23T11:53:28.17
IV.CTI.HHE. ML:1.4 0.000052850000000000004 0.5 AML other m 2017-05-23T11:53:32.50
IV.CTI.HHN. ML:1.3 0.00004955 0.1 AML other m 2017-05-23T11:53:32.75
IV.MABI.HHE. ML:0.6 0.0000097 0.42 AML other m 2017-05-23T11:53:37.33
IV.MABI.HHN. ML:0.6 0.0000092 0.56 AML other m 2017-05-23T11:53:39.66
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