Earthquake with magnitude of ML 0.6 on date 21-10-2021 and time 13:27:41 (Italy) in region Confine Italia Svizzera (SVIZZERA)

A magnitude ML 0.6 earthquake occured in region: Confine Italia Svizzera (SVIZZERA), on

  • 21-10-2021 11:27:41 (UTC)
  • 21-10-2021 13:27:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.559, 10.311 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
Valdidentro SO 8 4125 4125
Bormio SO 11 4121 8246
Valfurva SO 13 2638 10884
Livigno SO 14 6389 17273
Valdisotto SO 15 3556 20829
Tubre BZ 15 977 21806
Stelvio BZ 19 1161 22967

Municipalities with at least 50000 inhabitants

An earthquake occurred to
80 Km W of Bolzano (106441 inhabitants)
83 Km NW of Trento (117317 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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 0.6 2021-10-21
11:27:41
46.559 10.3108 10 2021-10-21
11:32:03
Sala Sismica INGV-Roma 96842321
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-21 11:27:41 ± 0.12
Latitude 46.5590 ± 0.0090
Longitude 10.3108 ± 0.0105
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 96842321

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 977
Semi-minor axis of confidence ellipse (meter) 721
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 30
Circular confidence region, given by single value of horizontal uncertainty (meter) 980
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.06925
Epicentral distance of station farthest from the epicenter (degree) 0.36962
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 96842321
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-21 11:32:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
ST.CARE.EHZ. 2021-10-21T11:27:52.44 0.6 undecidable manual S 117 0.2959 50 -0.57 42
CH.BERNI.HHZ. 2021-10-21T11:27:51.41 0.6 undecidable manual S 234 0.2455 50 -0.1 48
CH.DAVOX.HHE. 2021-10-21T11:27:49.67 0.1 undecidable manual P 307 0.3696 50 0.25 91
SI.MOSI.HHZ. 2021-10-21T11:27:49.34 0.6 undecidable manual S 71 0.1736 117 0.25 47
ST.CARE.EHZ. 2021-10-21T11:27:48.15 1.0 negative manual P 117 0.2959 50 -0.02 24
CH.BERNI.HHZ. 2021-10-21T11:27:47.39 1.0 positive manual P 234 0.2455 50 0.09 24
SI.MOSI.HHZ. 2021-10-21T11:27:46.05 1.0 positive manual P 71 0.1736 117 0.15 24
IV.BRMO.HHZ. 2021-10-21T11:27:46.53 0.6 undecidable manual S 153 0.0926 134 0 50
CH.FUORN.HHZ. 2021-10-21T11:27:45.19 0.6 undecidable manual S 332 0.0692 142 -0.74 41
IV.BRMO.HHZ. 2021-10-21T11:27:44.75 0.6 negative manual P 153 0.0926 134 0.32 47
CH.FUORN.HHZ. 2021-10-21T11:27:44.13 0.1 negative manual P 332 0.0692 142 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
CH.FUORN.HHE. ML:1.2 0.00021663895 0.1472 AML other m 2021-10-21T11:27:45.26
CH.FUORN.HHN. ML:0.8 8.9134665E-5 0.128 AML other m 2021-10-21T11:27:45.37
IV.BRMO.HHE. ML:0.6 4.3993375E-5 0.2624 AML other m 2021-10-21T11:27:46.53
IV.BRMO.HHN. ML:0.3 2.3867025E-5 0.0576 AML other m 2021-10-21T11:27:46.67
CH.BERNI.HHE. ML:0.4 1.42602085E-5 0.0896 AML other m 2021-10-21T11:27:51.97
CH.BERNI.HHN. ML:0.6 1.95246215E-5 0.1856 AML other m 2021-10-21T11:27:51.69
ST.CARE.EHE. ML:0.5 1.71336535E-5 0.6976 AML other m 2021-10-21T11:27:52.47
ST.CARE.EHN. ML:0.4 1.2359987E-5 0.9408 AML other m 2021-10-21T11:27:52.83
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