Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 22-01-2021 and time 06:44:37 (Italy) in region 3 km NW Vallarsa (TN)

A magnitude ML 1.8 earthquake occured in region: 3 km NW Vallarsa (TN), on

  • 22-01-2021 05:44:37 (UTC)
  • 22-01-2021 06:44:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.8, 11.08 at 12 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
Vallarsa TN 3 1395 1395
Trambileno TN 8 1452 2847
Ala TN 8 8913 11760
Rovereto TN 10 39289 51049
Mori TN 10 9678 60727
Brentonico TN 10 4015 64742
Terragnolo TN 10 716 65458
Isera TN 11 2735 68193
Volano TN 13 3169 71362
Avio TN 13 4133 75495
Nogaredo TN 13 2065 77560
Villa Lagarina TN 13 3778 81338
Posina VI 14 566 81904
Nomi TN 14 1398 83302
Pomarolo TN 14 2452 85754
Ronzo-Chienis TN 14 976 86730
Folgaria TN 15 3191 89921
Calliano TN 15 1807 91728
Laghi VI 15 133 91861
Valli del Pasubio VI 15 3242 95103
Recoaro Terme VI 15 6453 101556
Besenello TN 16 2654 104210
Nago-Torbole TN 18 2867 107077
Erbezzo VR 19 740 107817
Lastebasse VI 19 208 108025
Aldeno TN 20 3059 111084
Torrebelvicino VI 20 5917 117001
Cimone TN 20 728 117729

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km S of Trento (117317 inhabitants)
41 Km N of Verona (258765 inhabitants)
46 Km NW of Vicenza (112953 inhabitants)
73 Km E of Brescia (196480 inhabitants)
76 Km NW of Padova (210401 inhabitants)
81 Km S of Bolzano (106441 inhabitants)
91 Km W of Treviso (83731 inhabitants)
98 Km NW of Rovigo (51867 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 1.8 2021-01-22
05:44:37		 45.8 11.08 12 2021-01-22
05:56:50		 Sala Sismica INGV-Roma 86445551
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-22 05:44:37 ± 0.07
Latitude 45.80 ± 0.00
Longitude 11.08 ± 0.01
Depth (km) 12 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86445551

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 476
Semi-minor axis of confidence ellipse (meter) 224
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 256
Circular confidence region, given by single value of horizontal uncertainty (meter) 480
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 79
Number of associated phases, regardless of their use for origin computation 48
Number of defining phases 39
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.14843
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 21
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 86445551
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-22 05:56:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.T0110.HHZ. 2021-01-22T05:46:27.96 3.0 undecidable manual Sg 11.25 0
IV.MRB1.HHZ. 2021-01-22T05:46:05.25 3.0 undecidable manual Pg 14.34 0
IV.SACR.HHZ. 2021-01-22T05:45:46.03 3.0 undecidable manual Pn -0.24 0
OT.OT14.EHZ. 2021-01-22T05:45:40.27 3.0 positive manual Pn -7.82 0
IT.RMVT.HGZ. 2021-01-22T05:45:31.29 3.0 undecidable manual Pg 1.11 0
IV.BARO.EHZ. 2021-01-22T05:45:24.69 3.0 undecidable manual Pg -0.59 0
SI.ROSI.HHZ. 2021-01-22T05:45:14.29 0.6 undecidable manual S 11 1.1484 91 -0.03 40
CH.BERNI.HHZ. 2021-01-22T05:45:08.69 0.3 undecidable manual S 310 0.956 91 0.06 63
SI.MOSI.HHZ. 2021-01-22T05:45:07.50 0.3 undecidable manual S 336 0.8939 91 0.71 57
IV.BRSN.EHZ. 2021-01-22T05:45:05.70 3.0 undecidable manual Sn -9.99 0
IV.APPI.EHZ. 2021-01-22T05:45:00.00 0.6 undecidable manual S 8 0.6835 91 -0.56 38
SI.KOSI.HHZ. 2021-01-22T05:45:00.67 0.6 undecidable manual S 17 0.6916 91 -0.12 43
SI.ROSI.HHZ. 2021-01-22T05:44:59.69 1.0 positive manual P 11 1.1484 91 0.79 17
ST.OZOL.EHZ. 2021-01-22T05:44:58.25 0.3 undecidable manual S 358 0.6025 91 0.1 69
IV.EUCT.HNZ. 2021-01-22T05:44:58.51 3.0 negative manual Pg -0.35 0
IV.TEOL.HHZ. 2021-01-22T05:44:57.67 0.3 undecidable manual S 137 0.6025 91 -0.49 60
CH.BERNI.HHZ. 2021-01-22T05:44:56.27 1.0 positive manual P 310 0.956 91 0.65 19
ST.ZIAN.EHZ. 2021-01-22T05:44:56.81 0.6 undecidable manual S 35 0.5792 91 -0.65 37
SI.MOSI.HHZ. 2021-01-22T05:44:55.31 0.6 negative manual P 336 0.8939 91 0.76 37
IV.BRMO.HHZ. 2021-01-22T05:44:54.16 1.0 negative manual P 324 0.8355 91 0.62 20
IV.APPI.EHZ. 2021-01-22T05:44:51.25 0.1 undecidable manual P 8 0.6835 91 0.29 88
SI.KOSI.HHZ. 2021-01-22T05:44:51.60 0.6 undecidable manual P 17 0.6916 91 0.51 42
ST.RONC.EHZ. 2021-01-22T05:44:50.86 0.3 undecidable manual S 299 0.3669 92 -0.32 66
ST.ZIAN.EHZ. 2021-01-22T05:44:49.32 1.0 positive manual P 35 0.5792 91 0.15 23
ST.OZOL.EHZ. 2021-01-22T05:44:49.77 1.0 positive manual P 358 0.6025 91 0.21 23
IV.MAGA.HHZ. 2021-01-22T05:44:49.35 0.6 undecidable manual S 265 0.3184 93 -0.39 44
IV.TEOL.HHZ. 2021-01-22T05:44:49.95 0.3 undecidable manual P 137 0.6025 91 0.38 66
ST.GAGG.HHZ. 2021-01-22T05:44:48.48 0.6 undecidable manual S 343 0.295 93 -0.56 41
ST.PANI.EHZ. 2021-01-22T05:44:48.46 0.6 undecidable manual S 35 0.3031 93 -0.82 37
IV.TREG.HNN. 2021-01-22T05:44:48.61 0.6 undecidable manual S 169 0.2833 93 -0.09 47
IV.CTI.HHZ. 2021-01-22T05:44:47.19 0.6 negative manual P 58 0.4641 92 -0.01 46
SI.LUSI.HHZ. 2021-01-22T05:44:45.21 0.3 undecidable manual S 328 0.1853 98 -0.6 62
IV.MBAL.EHZ. 2021-01-22T05:44:45.61 0.6 undecidable manual S 237 0.188 98 -0.28 46
ST.RONC.EHZ. 2021-01-22T05:44:45.80 1.0 undecidable manual P 299 0.3669 92 0.26 24
OX.MARN.HNE. 2021-01-22T05:44:45.50 0.6 undecidable manual S 152 0.1862 98 -0.32 46
IV.MAGA.HHZ. 2021-01-22T05:44:44.98 1.0 negative manual P 265 0.3184 93 0.27 24
ST.GAGG.HHZ. 2021-01-22T05:44:44.28 0.1 negative manual P 343 0.295 93 -0.03 95
ST.VARA.EHZ. 2021-01-22T05:44:44.19 0.6 undecidable manual S 281 0.1331 109 -0.1 48
ST.PANI.EHZ. 2021-01-22T05:44:44.45 0.3 negative manual P 35 0.3031 93 0 72
IV.TREG.HNN. 2021-01-22T05:44:44.22 0.1 undecidable manual P 169 0.2833 93 0.11 99
IV.ZEN8.HNE. 2021-01-22T05:44:43.83 1.0 undecidable manual P 236 0.295 93 -0.48 21
ST.DOSS.HHZ. 2021-01-22T05:44:43.54 0.6 undecidable manual S 43 0.107 119 -0.06 49
IV.NDIM.HHZ. 2021-01-22T05:44:42.85 3.0 positive manual P -5.03 0
OX.MARN.HNE. 2021-01-22T05:44:42.52 0.3 undecidable manual P 152 0.1862 98 0.07 75
SI.LUSI.HHZ. 2021-01-22T05:44:42.35 0.1 negative manual P 328 0.1853 98 -0.09 96
IV.MBAL.EHZ. 2021-01-22T05:44:42.52 1.0 negative manual P 237 0.188 98 0.03 25
ST.DOSS.HHZ. 2021-01-22T05:44:41.40 0.1 positive manual P 43 0.107 119 0.23 100
ST.VARA.EHZ. 2021-01-22T05:44:41.83 0.3 negative manual P 281 0.1331 109 0.27 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
ST.DOSS.HNN. ML:2.2 0.0015 0.1 AML other m 2021-01-22T05:44:43.67
ST.DOSS.HHN. ML:2 0.001176 0.32 AML other m 2021-01-22T05:44:43.79
ST.DOSS.HNE. ML:2 0.001095 1.16 AML other m 2021-01-22T05:44:43.06
ST.DOSS.HHE. ML:2.2 0.001615 0.08 AML other m 2021-01-22T05:44:43.66
ST.GAGG.HHE. ML:1.6 0.0001555 0.06 AML other m 2021-01-22T05:44:44.46
ST.VARA.EHN. ML:1.8 0.0005195 0.72 AML other m 2021-01-22T05:44:44.91
ST.VARA.HNE. ML:1.8 0.0005295 0.72 AML other m 2021-01-22T05:44:44.91
ST.VARA.HNN. ML:2 0.000866 0.24 AML other m 2021-01-22T05:44:45.20
ST.VARA.EHE. ML:2 0.000866 0.26 AML other m 2021-01-22T05:44:45.21
SI.LUSI.HHE. ML:1.7 0.0003775 0.32 AML other m 2021-01-22T05:44:45.49
SI.LUSI.HHN. ML:2 0.000761 0.78 AML other m 2021-01-22T05:44:45.54
ST.PANI.EHN. ML:1.6 0.000182 0.64 AML other m 2021-01-22T05:44:48.61
ST.PANI.EHE. ML:1.5 0.00013765 0.42 AML other m 2021-01-22T05:44:48.74
ST.GAGG.HHN. ML:1.4 0.000106 0.36 AML other m 2021-01-22T05:44:49.49
ST.RONC.EHE. ML:1.5 0.00010845 0.48 AML other m 2021-01-22T05:44:50.69
IV.CTI.HHE. ML:1.8 0.000151 0.06 AML other m 2021-01-22T05:44:54.32
IV.CTI.HHN. ML:1.7 0.000125 0.96 AML other m 2021-01-22T05:44:54.82
ST.RONC.EHN. ML:1.5 0.0001164 1.3 AML other m 2021-01-22T05:44:56.28
SI.MOSI.HHN. ML:1.8 7.06E-5 0.42 AML other m 2021-01-22T05:45:13.63
SI.MOSI.HHE. ML:1.6 4.551E-5 0.5 AML other m 2021-01-22T05:45:13.70
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download