Earthquake with magnitude of ML 1.2 on date 20-01-2020 and time 09:41:44 (Italy) in region 5 km E Grosio (SO)

A magnitude ML 1.2 earthquake occured in region: 5 km E Grosio (SO), on

  • 20-01-2020 08:41:44 (UTC)
  • 20-01-2020 09:41:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.28, 10.34 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Grosio SO 5 4443 4443
Sondalo SO 6 4136 8579
Grosotto SO 6 1622 10201
Mazzo di Valtellina SO 7 1022 11223
Incudine BS 7 385 11608
Vezza d'Oglio BS 7 1457 13065
Monno BS 8 555 13620
Tovo di Sant'Agata SO 8 628 14248
Vervio SO 8 217 14465
Vione BS 9 691 15156
Lovero SO 10 661 15817
Temù BS 11 1105 16922
Edolo BS 12 4572 21494
Sernio SO 12 486 21980
Sonico BS 13 1264 23244
Ponte di Legno BS 14 1729 24973
Tirano SO 14 9130 34103
Corteno Golgi BS 15 1976 36079
Valdisotto SO 17 3556 39635
Villa di Tirano SO 18 3000 42635
Malonno BS 18 3261 45896

Municipalities with at least 50000 inhabitants

An earthquake occurred to
65 Km W of Trento (117317 inhabitants)
82 Km W of Bolzano (106441 inhabitants)
83 Km N of Brescia (196480 inhabitants)
83 Km NE of Bergamo (119381 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
Rev 100 ML 1.2 2020-01-20
08:41:44
46.28 10.34 8 2020-01-20
08:49:20
Sala Sismica INGV-Roma 75672531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-20 08:41:44 ± 0.1
Latitude 46.28 ± 0.00
Longitude 10.34 ± 0.01
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 75672531

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 534
Semi-minor axis of confidence ellipse (meter) 485
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 291
Circular confidence region, given by single value of horizontal uncertainty (meter) 530
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 53
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.96677
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 15
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 75672531
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-20 08:49:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
CH.MUGIO.HHZ. 2020-01-20T08:42:02.46 0.3 undecidable manual P 249 0.9668 50 -0.06 65
MN.TUE.HHZ. 2020-01-20T08:41:58.12 0.3 positive manual P 286 0.7069 50 0.04 69
SI.MOSI.HHZ. 2020-01-20T08:41:57.44 0.3 undecidable manual S 24 0.3642 50 -0.61 64
CH.FUORN.HHZ. 2020-01-20T08:41:57.07 0.3 undecidable manual S 352 0.3399 50 -0.28 71
IV.APPI.EHZ. 2020-01-20T08:41:57.41 3.0 positive manual P 0 0
CH.DAVOX.HHZ. 2020-01-20T08:41:56.37 0.3 undecidable manual P 328 0.5873 50 0.34 66
IV.MAGA.HHZ. 2020-01-20T08:41:55.68 0.6 positive manual P 158 0.5468 50 0.34 45
ST.CARE.EHZ. 2020-01-20T08:41:55.67 0.3 undecidable manual S 60 0.2851 105 0.09 74
IV.ZONE.HHZ. 2020-01-20T08:41:55.31 0.6 undecidable manual P 196 0.5414 50 0.07 47
ST.OZOL.EHZ. 2020-01-20T08:41:54.89 0.1 undecidable manual P 76 0.5081 50 0.21 92
ST.GAGG.HHZ. 2020-01-20T08:41:54.33 0.3 undecidable manual P 115 0.4748 50 0.22 69
IV.BRMO.HHZ. 2020-01-20T08:41:52.01 0.1 undecidable manual S 7 0.1943 111 -0.24 98
SI.MOSI.HHZ. 2020-01-20T08:41:52.56 0.1 undecidable manual P 24 0.3642 50 0.36 92
CH.FUORN.HHZ. 2020-01-20T08:41:51.88 0.3 undecidable manual P 352 0.3399 50 0.08 74
IV.BORM.HNE. 2020-01-20T08:41:51.84 0.1 undecidable manual S 9 0.188 112 -0.19 99
ST.RONC.EHZ. 2020-01-20T08:41:51.83 0.1 undecidable manual P 147 0.3624 50 -0.35 92
ST.CARE.EHZ. 2020-01-20T08:41:50.74 0.1 positive manual P 60 0.2851 105 -0.04 100
IV.MABI.HHZ. 2020-01-20T08:41:49.83 0.1 undecidable manual P 152 0.259 106 -0.4 93
CH.BERNI.HHZ. 2020-01-20T08:41:49.94 0.1 undecidable manual P 301 0.2518 107 -0.14 99
IV.BORM.HNE. 2020-01-20T08:41:49.22 0.1 undecidable manual P 9 0.188 112 0.49 93
IV.BRMO.HHZ. 2020-01-20T08:41:49.18 0.3 undecidable manual P 7 0.1943 111 0.32 72
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BRMO.HHE. ML:1.2 0.0001037 0.64 AML other m 2020-01-20T08:41:52.08
IV.BRMO.HHN. ML:1 7.825E-5 0.56 AML other m 2020-01-20T08:41:52.31
IV.MABI.HHN. ML:1.3 0.0001085 0.18 AML other m 2020-01-20T08:41:53.16
IV.MABI.HHE. ML:1.2 8.885E-5 0.14 AML other m 2020-01-20T08:41:53.24
CH.BERNI.HHN. ML:1 6.095E-5 1 AML other m 2020-01-20T08:41:54.01
CH.BERNI.HHE. ML:1 5.465E-5 0.5 AML other m 2020-01-20T08:41:54.26
ST.CARE.EHE. ML:1.2 6.85E-5 1.84 AML other m 2020-01-20T08:41:55.05
ST.RONC.HNE. ML:2.6 0.001489 0.46 AML other m 2020-01-20T08:41:56.82
CH.FUORN.HHN. ML:1 3.4085E-5 0.44 AML other m 2020-01-20T08:41:56.57
ST.RONC.EHN. ML:1.7 0.0001655 0.16 AML other m 2020-01-20T08:41:56.96
ST.RONC.EHE. ML:1.5 0.00011715 0.14 AML other m 2020-01-20T08:41:57.09
ST.CARE.EHN. ML:1.2 6.655E-5 0.46 AML other m 2020-01-20T08:41:57.39
SI.MOSI.HHN. ML:1.6 0.000154 0.3 AML other m 2020-01-20T08:41:58.65
CH.FUORN.HHE. ML:1 3.505E-5 1.3 AML other m 2020-01-20T08:41:58.19
SI.MOSI.HHE. ML:1.6 0.0001385 0.34 AML other m 2020-01-20T08:41:59.35
ST.RONC.HNN. ML:2.3 0.000698 0.42 AML other m 2020-01-20T08:42:06.35
IV.APPI.EHN. ML:1.7 8.255E-5 0.9 AML other m 2020-01-20T08:42:07.50
IV.APPI.EHE. ML:1.6 7.065E-5 0.6 AML other m 2020-01-20T08:42:07.38
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