Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 19-11-2021 and time 19:45:05 (Italy) in region 3 km SW Valdisotto (SO)

A magnitude ML 1.1 earthquake occured in region: 3 km SW Valdisotto (SO), on

  • 19-11-2021 18:45:05 (UTC)
  • 19-11-2021 19:45:05 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.4090, 10.3380 at 10 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
Valdisotto SO 3 3556 3556
Bormio SO 8 4121 7677
Valfurva SO 8 2638 10315
Sondalo SO 9 4136 14451
Valdidentro SO 10 4125 18576
Grosio SO 13 4443 23019
Grosotto SO 16 1622 24641
Mazzo di Valtellina SO 18 1022 25663
Vervio SO 19 217 25880
Vezza d'Oglio BS 19 1457 27337
Tovo di Sant'Agata SO 19 628 27965
Vione BS 20 691 28656

Municipalities with at least 50000 inhabitants

An earthquake occurred to
71 Km NW of Trento (117317 inhabitants)
79 Km W of Bolzano (106441 inhabitants)
95 Km NE of Bergamo (119381 inhabitants)
97 Km N of Brescia (196480 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 1.1 2021-11-19
18:45:05		 46.4093 10.3378 10 2021-11-19
18:50:37		 Sala Sismica INGV-Roma 97601611
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-19 18:45:05 ± 0.18
Latitude 46.4093 ± 0.0081
Longitude 10.3378 ± 0.0130
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97601611

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1006
Semi-minor axis of confidence ellipse (meter) 671
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 51
Circular confidence region, given by single value of horizontal uncertainty (meter) 1010.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 116
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) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.07105
Epicentral distance of station farthest from the epicenter (degree) 0.49193
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:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 97601611
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-19 18:50:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
ST.RONC.EHE. 2021-11-19T18:45:21.65 0.3 undecidable manual S 155 52.4031 50 -0.29 67
CH.DAVOX.HHZ. 2021-11-19T18:45:21.82 0.6 undecidable manual S 320 54.0015 50 -0.55 42
ST.OZOL.EHZ. 2021-11-19T18:45:16.09 1.0 positive manual P 90 54.6009 50 0.83 19
SI.MOSI.HHZ. 2021-11-19T18:45:15.00 0.6 undecidable manual S 35 28.0497 50 -0.45 45
ST.RONC.EHE. 2021-11-19T18:45:15.23 0.1 undecidable manual P 155 52.4031 50 0.3 89
CH.DAVOX.HHZ. 2021-11-19T18:45:15.65 0.6 negative manual P 320 54.0015 50 0.47 43
CH.FUORN.HHZ. 2021-11-19T18:45:14.76 0.3 undecidable manual S 346 24.0537 50 0.37 69
ST.CARE.EHZ. 2021-11-19T18:45:14.59 0.6 undecidable manual S 86 27.3504 50 -0.65 42
CH.BERNI.HHZ. 2021-11-19T18:45:13.79 0.6 undecidable manual S 271 24.0537 50 -0.59 43
ST.CARE.EHZ. 2021-11-19T18:45:11.24 0.6 positive manual P 86 27.3504 50 0.18 48
SI.MOSI.HHZ. 2021-11-19T18:45:11.46 0.1 undecidable manual P 35 28.0497 50 0.28 93
CH.FUORN.HHZ. 2021-11-19T18:45:10.77 1.0 positive manual P 346 24.0537 50 0.21 24
CH.BERNI.HHZ. 2021-11-19T18:45:10.64 0.6 undecidable manual P 271 24.0537 50 0.08 49
IV.BRMO.HHZ. 2021-11-19T18:45:09.17 0.6 undecidable manual S 19 7.881 143 -0.69 43
IV.BRMO.HHZ. 2021-11-19T18:45:08.08 0.1 undecidable manual P 19 7.881 143 0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BRMO.HHN. ML:1.2 0.000235 0.14 AML other m 2021-11-19T18:45:09.21
IV.BRMO.HHE. ML:1.4 0.000313 0.12 AML other m 2021-11-19T18:45:09.20
CH.BERNI.HHN. ML:1.1 0.00006769999999999999 0.12 AML other m 2021-11-19T18:45:14.15
CH.BERNI.HHE. ML:1.0 0.00006135 0.24 AML other m 2021-11-19T18:45:14.02
SI.MOSI.HHN. ML:1.3 0.00009800000000000001 0.88 AML other m 2021-11-19T18:45:15.75
SI.MOSI.HHE. ML:1.3 0.00010085 1.78 AML other m 2021-11-19T18:45:16.93
CH.FUORN.HHE. ML:0.7 0.000029900000000000002 0.48 AML other m 2021-11-19T18:45:16.10
CH.FUORN.HHN. ML:0.5 0.000018849999999999997 0.26 AML other m 2021-11-19T18:45:16.25
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