Earthquake with magnitude of ML 1.8 on date 02-02-2021 and time 02:22:29 (Italy) in region 7 km SW Valdidentro (SO)

A magnitude ML 1.8 earthquake occured in region: 7 km SW Valdidentro (SO), on

  • 02-02-2021 01:22:29 (UTC)
  • 02-02-2021 02:22:29 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.4540, 10.2220 at 9 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Valdidentro SO 7 4125 4125
Valdisotto SO 11 3556 7681
Livigno SO 12 6389 14070
Bormio SO 12 4121 18191
Valfurva SO 15 2638 20829
Sondalo SO 16 4136 24965
Grosio SO 18 4443 29408
Grosotto SO 20 1622 31030

Municipalities with at least 50000 inhabitants

An earthquake occurred to
81 Km NW of Trento (117317 inhabitants)
87 Km W of Bolzano (106441 inhabitants)
95 Km NE of Bergamo (119381 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 1.8 2021-02-02
01:22:29
46.4537 10.2218 9 2021-07-12
16:54:57
Bollettino Sismico Italiano INGV 86802671
Reviewed
Rev100
ML 1.9 2021-02-02
01:22:29
46.455 10.2217 8 2021-02-02
01:30:58
Sala Sismica INGV-Roma 86774071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-02 01:22:29 ± 0.1
Latitude 46.4537 ± 0.0063
Longitude 10.2218 ± 0.0065
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86802671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 590
Semi-minor axis of confidence ellipse (meter) 513
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 0
Circular confidence region, given by single value of horizontal uncertainty (meter) 590.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 47
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 38
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.38
Epicentral distance of station closest to the epicenter (degree) 0.10612
Epicentral distance of station farthest from the epicenter (degree) 1.07289
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 24
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.1
Num. used stations 24
Type of magnitude ML
Reference to an origin 86802671
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-03 10:14:12

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 36
Type of magnitude ML
Reference to an origin 86774071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-02 01:30:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
ST.DOSS.HHZ. 2021-02-02T01:22:58.55 0.6 undecidable manual S 130 97.7244 50 0.28 41
CH.PLONS.HHE. 2021-02-02T01:22:57.09 0.6 undecidable manual S 316 91.9413 50 0.37 40
SI.KOSI.HHZ. 2021-02-02T01:22:55.45 0.3 undecidable manual S 89 88.3449 50 -0.31 62
SI.LUSI.HHZ. 2021-02-02T01:22:52.49 0.6 undecidable manual S 134 77.9664 50 -0.49 40
IV.ZONE.HHZ. 2021-02-02T01:22:52.20 0.3 undecidable manual S 186 76.9674 50 -0.52 60
IV.BRES.EHZ. 2021-02-02T01:22:49.89 0.1 negative manual P 76 118.4925 50 0.66 70
CH.FUSIO.HHZ. 2021-02-02T01:22:49.81 0.3 undecidable manual P 271 119.0919 50 0.48 56
ST.OZOL.EHZ. 2021-02-02T01:22:48.64 0.6 undecidable manual S 95 63.6918 50 -0.54 41
SI.ROSI.HHZ. 2021-02-02T01:22:47.74 0.1 positive manual P 59 104.7174 50 0.63 73
ST.ZIAN.EHZ. 2021-02-02T01:22:47.49 1.0 undecidable manual P 100 104.5176 50 0.41 19
ST.RONC.EHZ. 2021-02-02T01:22:47.50 0.3 undecidable manual S 149 60.8946 50 -0.93 52
ST.DOSS.HHZ. 2021-02-02T01:22:46.65 0.1 undecidable manual P 130 97.7244 50 0.62 74
IV.MBAL.EHZ. 2021-02-02T01:22:46.77 0.6 undecidable manual P 149 97.125 50 0.83 34
SI.KOSI.HHZ. 2021-02-02T01:22:45.17 0.1 positive manual P 89 88.3449 50 0.58 76
CH.PLONS.HHE. 2021-02-02T01:22:44.94 0.6 undecidable manual P 316 91.9413 50 -0.2 42
IV.MDI.HHZ. 2021-02-02T01:22:44.08 0.6 undecidable manual P 207 85.248 50 -0.03 44
IV.MAGA.HHZ. 2021-02-02T01:22:43.83 0.3 undecidable manual P 157 81.4518 50 0.3 63
IV.APPI.EHZ. 2021-02-02T01:22:43.17 0.1 positive manual P 88 76.9674 50 0.34 83
CH.DAVOX.HHZ. 2021-02-02T01:22:43.40 0.3 undecidable manual S 324 44.622 50 -0.7 59
SI.LUSI.HHZ. 2021-02-02T01:22:43.48 0.6 undecidable manual P 134 77.9664 50 0.5 40
IV.ZONE.HHZ. 2021-02-02T01:22:43.12 0.1 positive manual P 186 76.9674 50 0.29 84
ST.GAGG.HHZ. 2021-02-02T01:22:41.88 0.3 undecidable manual P 126 69.8745 50 0.15 66
ST.OZOL.EHZ. 2021-02-02T01:22:40.91 0.6 undecidable manual P 95 63.6918 50 0.12 45
ST.RONC.EHZ. 2021-02-02T01:22:40.33 0.1 positive manual P 149 60.8946 50 -0.02 92
ST.CARE.EHZ. 2021-02-02T01:22:40.81 0.3 undecidable manual S 95 36.2415 50 -1.05 52
MN.TUE.HHZ. 2021-02-02T01:22:40.93 0.3 undecidable manual P 272 66.8775 50 -0.34 64
SI.MOSI.HHZ. 2021-02-02T01:22:39.86 0.3 undecidable manual S 54 30.8469 50 -0.55 64
CH.DAVOX.HHZ. 2021-02-02T01:22:37.96 0.1 negative manual P 324 44.622 50 0.11 93
ST.CARE.EHZ. 2021-02-02T01:22:36.39 0.1 positive manual P 95 36.2415 50 -0.17 93
CH.FUORN.HHZ. 2021-02-02T01:22:36.38 0.3 undecidable manual S 10 18.7701 116 -0.2 72
SI.MOSI.HHZ. 2021-02-02T01:22:35.58 0.1 positive manual P 54 30.8469 50 -0.14 95
IV.BRMO.HHZ. 2021-02-02T01:22:34.24 0.3 undecidable manual S 78 11.7771 128 -0.27 71
CH.BERNI.HHZ. 2021-02-02T01:22:34.92 0.3 undecidable manual S 254 15.873 120 -0.76 61
IV.BORM.HNE. 2021-02-02T01:22:33.79 0.3 undecidable manual S 82 11.9769 128 -0.77 61
CH.FUORN.HHZ. 2021-02-02T01:22:33.74 0.1 positive manual P 10 18.7701 116 0.23 95
IV.BORM.HNE. 2021-02-02T01:22:32.61 0.1 positive manual P 82 11.9769 128 0.26 95
IV.BRMO.HHZ. 2021-02-02T01:22:32.60 0.1 undecidable manual P 78 11.7771 128 0.28 95
CH.BERNI.HHZ. 2021-02-02T01:22:32.99 0.1 positive manual P 254 15.873 120 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
CH.BERNI.HHE. ML:1.9 0.0008005 0.08 AML other m 2021-02-02T01:22:35.39
CH.BERNI.HHN. ML:1.9 0.0007880000000000001 1.06 AML other m 2021-02-02T01:22:35.07
CH.FUORN.HHE. ML:1.7 0.00038950000000000003 0.5 AML other m 2021-02-02T01:22:36.47
CH.FUORN.HHN. ML:1.6 0.0003535 0.34 AML other m 2021-02-02T01:22:37.80
ST.CARE.EHN. ML:1.9 0.00028000000000000003 0.22 AML other m 2021-02-02T01:22:40.83
ST.CARE.EHE. ML:2.1 0.0004565 0.34 AML other m 2021-02-02T01:22:40.81
SI.MOSI.HHE. ML:1.8 0.0003115 1.16 AML other m 2021-02-02T01:22:41.12
SI.MOSI.HHN. ML:1.9 0.0003875 0.82 AML other m 2021-02-02T01:22:42.22
MN.TUE.HNE. ML:1.8 0.0001215 0.58 AML other m 2021-02-02T01:22:50.62
MN.TUE.HHE. ML:1.8 0.000127 0.56 AML other m 2021-02-02T01:22:50.62
MN.TUE.HNN. ML:1.9 0.00014150000000000002 0.6 AML other m 2021-02-02T01:22:51.11
MN.TUE.HHN. ML:1.9 0.0001375 0.14 AML other m 2021-02-02T01:22:51.34
ST.GAGG.HHN. ML:1.6 0.000059749999999999995 0.7 AML other m 2021-02-02T01:22:51.29
ST.GAGG.HHE. ML:1.8 0.0001021 1.48 AML other m 2021-02-02T01:22:52.08
SI.LUSI.HHN. ML:2.0 0.00013900000000000002 0.16 AML other m 2021-02-02T01:22:53.27
SI.LUSI.HHE. ML:1.8 0.0000974 0.12 AML other m 2021-02-02T01:22:53.36
IV.APPI.EHE. ML:2.0 0.00015 0.98 AML other m 2021-02-02T01:22:53.71
IV.APPI.EHN. ML:2.0 0.000129 1.24 AML other m 2021-02-02T01:22:54.81
ST.DOSS.HHN. ML:1.8 0.00007095000000000002 0.3 AML other m 2021-02-02T01:22:59.78
IV.MBAL.EHE. ML:1.8 0.0000665 0.12 AML other m 2021-02-02T01:23:00.39
ST.DOSS.HHE. ML:1.7 0.00005639999999999999 0.32 AML other m 2021-02-02T01:23:00.24
IV.MBAL.EHN. ML:1.6 0.000042399999999999994 1.08 AML other m 2021-02-02T01:23:01.18
CH.FUSIO.HHE. ML:1.8 0.0000447 0.42 AML other m 2021-02-02T01:23:07.75
CH.FUSIO.HHN. ML:1.7 0.000039599999999999994 0.54 AML other m 2021-02-02T01:23:13.50
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