Earthquake with magnitude of ML 0.8 on date 16-02-2021 and time 16:31:56 (Italy) in region 5 km NW Lanzada (SO)

A magnitude ML 0.8 earthquake occured in region: 5 km NW Lanzada (SO), on

  • 16-02-2021 15:31:56 (UTC)
  • 16-02-2021 16:31:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.3150, 9.8500 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Lanzada SO 5 1341 1341
Caspoggio SO 6 1411 2752
Chiesa in Valmalenco SO 6 2514 5266
Torre di Santa Maria SO 9 773 6039
Spriana SO 11 97 6136
Montagna in Valtellina SO 16 3032 9168
Sondrio SO 16 21778 30946
Castione Andevenno SO 16 1575 32521
Poggiridenti SO 17 1924 34445
Postalesio SO 17 657 35102
Tresivio SO 17 2030 37132
Berbenno di Valtellina SO 18 4210 41342
Caiolo SO 18 1085 42427
Faedo Valtellino SO 18 566 42993
Ponte in Valtellina SO 18 2362 45355
Piateda SO 19 2219 47574
Albosaggia SO 19 3094 50668
Cedrasco SO 19 460 51128
Chiuro SO 19 2534 53662
Buglio in Monte SO 20 2016 55678
Fusine SO 20 579 56257
Val Masino SO 20 908 57165

Municipalities with at least 50000 inhabitants

An earthquake occurred to
70 Km N of Bergamo (119381 inhabitants)
81 Km NE of Como (84495 inhabitants)
91 Km NW of Brescia (196480 inhabitants)
93 Km NE of Monza (122671 inhabitants)
97 Km NE of Varese (80799 inhabitants)
97 Km NE of Cinisello Balsamo (75078 inhabitants)
99 Km NE of Sesto San Giovanni (81608 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 0.8 2021-02-16
15:31:56
46.3148 9.8498 10 2021-02-16
15:37:28
Sala Sismica INGV-Roma 87210901
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-16 15:31:56 ± 0.38
Latitude 46.3148 ± 0.0225
Longitude 9.8498 ± 0.0143
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 87210901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2471
Semi-minor axis of confidence ellipse (meter) 856
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 175
Circular confidence region, given by single value of horizontal uncertainty (meter) 2470.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 229
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 8
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.46585
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 4
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.0
Num. used stations 2
Type of magnitude ML
Reference to an origin 87210901
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-16 15:37:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PTRJ.HNZ. 2021-02-16T15:33:45.57 3.0 undecidable manual Pg 21.780001 0
IV.SGTA.HNZ. 2021-02-16T15:33:30.36 3.0 undecidable manual Pn -0.97 0
IV.VITU.HHZ. 2021-02-16T15:33:28.74 3.0 positive manual Pn 2.29 0
IV.CIGN.HHZ. 2021-02-16T15:33:26.53 3.0 positive manual Pn 3.77 0
IV.LAV9.HNZ. 2021-02-16T15:33:19.63 3.0 negative manual Pg 8.65 0
IV.BARO.EHZ. 2021-02-16T15:33:14.69 3.0 negative manual Pg 13.46 0
IV.RIBO.EHZ.01 2021-02-16T15:32:58.20 3.0 undecidable manual Pg 9.23 0
IV.BRSN.EHZ. 2021-02-16T15:32:47.29 3.0 negative manual Pg 10.51 0
IV.MSSA.HHZ. 2021-02-16T15:32:28.80 3.0 positive manual Pn -0.05 0
CH.DAVOX.HHZ. 2021-02-16T15:32:13.50 0.3 undecidable manual S 2 51.7038 50 0.14 71
MN.TUE.HHZ. 2021-02-16T15:32:10.58 0.3 undecidable manual S 295 42.2244 50 -0.25 70
IV.BRMO.HHZ. 2021-02-16T15:32:10.91 0.3 undecidable manual S 66 43.8228 50 -0.34 69
CH.DAVOX.HHZ. 2021-02-16T15:32:06.88 0.6 negative manual P 2 51.7038 50 0.49 44
IV.BRMO.HHZ. 2021-02-16T15:32:05.66 0.6 negative manual P 66 43.8228 50 0.49 44
MN.TUE.HHZ. 2021-02-16T15:32:04.80 0.6 negative manual P 295 42.2244 50 -0.13 48
CH.BERNI.HHZ. 2021-02-16T15:32:03.32 0.6 undecidable manual S 50 17.1717 120 -0.46 47
CH.BERNI.HHZ. 2021-02-16T15:32:01.02 0.1 positive manual P 50 17.1717 120 0.16 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
CH.BERNI.HHN. ML:0.8 0.00005345 0.28 AML other m 2021-02-16T15:32:03.77
CH.BERNI.HHE. ML:0.8 0.00004955 1 AML other m 2021-02-16T15:32:04.67
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