Earthquake with magnitude of ML 2.1 on date 27-10-2020 and time 03:40:44 (UTC) in region Svizzera (SVIZZERA)

A magnitude ML 2.1 earthquake occured in region: Svizzera (SVIZZERA), on

  • 27-10-2020 03:40:44 (UTC)
  • 27-10-2020 04:40:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.9520, 9.1150 at 10 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

No Italian municipalities within 100 km from the epicenter with at least 50000 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 2.1 2020-10-27
03:40:44
46.9517 9.1147 10 2021-02-26
14:56:04
Bollettino Sismico Italiano INGV 84609481
Reviewed
Rev100
ML 2.1 2020-10-27
03:40:44
46.9427 9.1205 10 2020-10-27
03:53:20
Sala Sismica INGV-Roma 84169981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-27 03:40:44 ± 0.22
Latitude 46.9517 ± 0.0216
Longitude 9.1147 ± 0.0119
Depth (km) 10 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84609481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2332
Semi-minor axis of confidence ellipse (meter) 919
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 1
Circular confidence region, given by single value of horizontal uncertainty (meter) 2330.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 162
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
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) 0.20594
Epicentral distance of station farthest from the epicenter (degree) 1.42093
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 84169981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-27 03:53:20

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 84609481
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-10 15:46:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.SATI.HHZ. 2020-10-27T03:41:28.18 1.0 undecidable manual S 219 152.736 50 0.48 18
CH.MMK.HHZ. 2020-10-27T03:41:22.87 0.6 undecidable manual S 222 133.0668 50 0.43 37
CH.FUORN.HHZ. 2020-10-27T03:41:12.57 0.6 undecidable manual S 112 94.6386 50 0.38 41
ST.RONC.EHZ. 2020-10-27T03:41:10.23 1.0 undecidable manual P 133 157.7199 50 0.13 18
GU.SATI.HHZ. 2020-10-27T03:41:10.00 0.1 undecidable manual P 219 152.736 50 0.66 65
CH.MMK.HHZ. 2020-10-27T03:41:05.87 0.6 undecidable manual P 222 133.0668 50 -0.43 37
SI.MOSI.HHZ. 2020-10-27T03:41:04.00 0.3 undecidable manual P 108 115.1958 50 0.46 58
CH.DAVOX.HHZ. 2020-10-27T03:41:02.77 0.6 undecidable manual S 108 60.9945 50 -0.44 43
CH.BNALP.HHZ. 2020-10-27T03:41:00.59 0.3 undecidable manual S 260 53.0025 50 -0.49 65
CH.FUORN.HHZ. 2020-10-27T03:41:00.66 0.1 negative manual P 112 94.6386 50 0.28 83
MN.TUE.HHZ. 2020-10-27T03:40:59.86 0.6 undecidable manual S 162 55.9995 50 -2.02 18
CH.FUSIO.HHZ. 2020-10-27T03:40:55.40 0.1 positive manual P 212 64.9905 50 -0.4 86
CH.DAVOX.HHZ. 2020-10-27T03:40:55.12 0.1 undecidable manual P 108 60.9945 50 -0.08 93
MN.TUE.HHZ. 2020-10-27T03:40:54.57 0.3 undecidable manual P 162 55.9995 50 0.14 69
CH.BNALP.HHZ. 2020-10-27T03:40:54.15 0.1 positive manual P 260 53.0025 50 0.19 92
CH.PLONS.HHZ. 2020-10-27T03:40:52.64 0.6 undecidable manual S 62 22.8549 114 -0.28 48
CH.PLONS.HHZ. 2020-10-27T03:40:49.21 0.1 undecidable manual P 62 22.8549 114 -0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
CH.PLONS.HHN. ML:1.9 0.0005295000000000001 0.18 AML other m 2020-10-27T03:40:53.32
CH.PLONS.HHE. ML:1.9 0.0005225 0.42 AML other m 2020-10-27T03:40:57.34
MN.TUE.HHN. ML:2.0 0.00020600000000000002 0.3 AML other m 2020-10-27T03:41:00.45
MN.TUE.HNN. ML:2.0 0.00020150000000000002 0.8 AML other m 2020-10-27T03:41:00.05
MN.TUE.HHE. ML:2.2 0.00034899999999999997 0.88 AML other m 2020-10-27T03:41:00.02
MN.TUE.HNE. ML:2.2 0.00033899999999999995 0.88 AML other m 2020-10-27T03:41:00.02
CH.BNALP.HHN. ML:2.2 0.000418 0.38 AML other m 2020-10-27T03:41:01.38
CH.BNALP.HHE. ML:2.0 0.00024249999999999999 0.36 AML other m 2020-10-27T03:41:02.10
CH.FUSIO.HHN. ML:2.1 0.00021300000000000003 0.82 AML other m 2020-10-27T03:41:02.96
CH.DAVOX.HHN. ML:2.8 0.0012349999999999998 1.1 AML other m 2020-10-27T03:41:03.25
CH.FUSIO.HHE. ML:2.2 0.0002585 0.52 AML other m 2020-10-27T03:41:03.33
CH.DAVOX.HHE. ML:2.4 0.0005874999999999999 0.36 AML other m 2020-10-27T03:41:03.40
CH.FUORN.HHN. ML:1.8 0.0000756 1.58 AML other m 2020-10-27T03:41:16.96
CH.FUORN.HHE. ML:1.7 0.0000521 0.48 AML other m 2020-10-27T03:41:17.41
SI.MOSI.HHE. ML:2.2 0.00014250000000000002 1.2 AML other m 2020-10-27T03:41:28.23
CH.MMK.HHE. ML:1.5 0.00001935 0.28 AML other m 2020-10-27T03:41:29.61
CH.MMK.HHN. ML:1.7 0.0000294 1.46 AML other m 2020-10-27T03:41:30.02
SI.MOSI.HHN. ML:2.4 0.000185 0.42 AML other m 2020-10-27T03:41:30.88
ST.RONC.EHN. ML:2.5 0.0001495 0.2 AML other m 2020-10-27T03:41:34.07
GU.SATI.HHE. ML:2.2 0.0000782 0.78 AML other m 2020-10-27T03:41:37.34
GU.SATI.HHN. ML:2.2 0.0000713 0.76 AML other m 2020-10-27T03:41:37.50
ST.RONC.EHE. ML:2.4 0.0001245 0.54 AML other m 2020-10-27T03:41:38.94
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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