Earthquake with magnitude of ML 1.3 on date 27-12-2021 and time 16:54:44 (UTC) in region Svizzera (SVIZZERA)

A magnitude ML 1.3 earthquake occured in region: Svizzera (SVIZZERA), on

  • 27-12-2021 16:54:44 (UTC)
  • 27-12-2021 17:54:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.7390, 9.6840 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

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
Reviewed
Rev100
ML 1.3 2021-12-27
16:54:44
46.7388 9.6845 10 2021-12-27
17:09:39
Sala Sismica INGV-Roma 99062041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-27 16:54:44 ± 0.19
Latitude 46.7388 ± 0.0153
Longitude 9.6845 ± 0.0118
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 99062041

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1578
Semi-minor axis of confidence ellipse (meter) 819
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 4
Circular confidence region, given by single value of horizontal uncertainty (meter) 1580.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.07559
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 99062041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-27 17:09:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MRLC.HHZ. 2021-12-27T16:56:37.27 3.0 undecidable manual Pn 6.39 0
IT.PLTA.HNZ. 2021-12-27T16:56:20.78 3.0 positive manual Pn 6.89 0
IV.PE3.EHZ. 2021-12-27T16:56:20.39 3.0 undecidable manual Sn -7.68 0
GU.RORO.HHZ. 2021-12-27T16:56:09.23 3.0 undecidable manual Sg 0.21 0
IV.IMOL.HNZ. 2021-12-27T16:56:08.05 3.0 undecidable manual Sg 0.58 0
IV.FRON.EHZ. 2021-12-27T16:55:54.97 3.0 negative manual Pg 11.18 0
IV.RIBO.EHZ.01 2021-12-27T16:55:53.29 3.0 undecidable manual Pg 8.5 0
GU.LSD.HHZ. 2021-12-27T16:55:20.20 3.0 undecidable manual Pn 1.36 0
SI.MOSI.HHZ. 2021-12-27T16:55:05.72 0.6 undecidable manual S 101 67.1772 50 0.81 37
IV.VARE.HHZ. 2021-12-27T16:55:04.72 0.3 undecidable manual P 216 119.3916 50 0.46 57
IV.MDI.HHZ. 2021-12-27T16:55:03.07 0.3 undecidable manual P 179 107.5146 50 0.64 55
IV.BRMO.HHZ. 2021-12-27T16:55:02.30 0.6 undecidable manual S 119 59.9955 50 -0.67 40
CH.MUGIO.HHZ. 2021-12-27T16:55:01.64 0.3 undecidable manual P 209 103.119 50 -0.11 63
CH.FUORN.HHZ. 2021-12-27T16:54:59.33 0.6 undecidable manual S 106 46.0206 50 0.09 47
CH.FUSIO.HHZ. 2021-12-27T16:54:58.51 0.3 undecidable manual P 248 83.9493 50 -0.29 63
CH.BERNI.HHZ. 2021-12-27T16:54:57.88 0.6 undecidable manual S 144 44.3223 50 -0.93 36
SI.MOSI.HHZ. 2021-12-27T16:54:56.35 0.3 undecidable manual P 101 67.1772 50 0.13 68
IV.BRMO.HHZ. 2021-12-27T16:54:55.54 0.3 undecidable manual P 119 59.9955 50 0.44 64
CH.PLONS.HHZ. 2021-12-27T16:54:52.01 0.3 undecidable manual P 326 41.4252 50 -0.23 69
CH.BERNI.HHZ. 2021-12-27T16:54:52.45 0.1 undecidable manual P 144 44.3223 50 -0.25 92
CH.FUORN.HHZ. 2021-12-27T16:54:52.91 0.3 undecidable manual P 106 46.0206 50 -0.04 72
CH.DAVOX.HHZ. 2021-12-27T16:54:50.56 0.6 undecidable manual S 73 15.5733 124 -0.28 48
CH.DAVOX.HHZ. 2021-12-27T16:54:48.17 0.1 undecidable manual P 73 15.5733 124 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
CH.DAVOX.HHE. ML:1.9 0.00069755965 0.1664 AML other m 2021-12-27T16:54:50.80
CH.DAVOX.HHN. ML:2.0 0.0009326721 0.1024 AML other m 2021-12-27T16:54:50.64
CH.BERNI.HHN. ML:1.0 0.00003125 1.06 AML other m 2021-12-27T16:54:59.84
CH.BERNI.HHE. ML:0.9 0.00002659796 0.1152 AML other m 2021-12-27T16:54:58.85
SI.MOSI.HHN. ML:1.6 0.00006327852000000001 0.2816 AML other m 2021-12-27T16:55:06.50
SI.MOSI.HHE. ML:1.4 0.00004662992 0.2048 AML other m 2021-12-27T16:55:07.21
CH.FUSIO.HHN. ML:1.4 0.000035893335 0.1536 AML other m 2021-12-27T16:55:09.92
CH.FUSIO.HHE. ML:1.3 0.000025109032 0.2944 AML other m 2021-12-27T16:55:09.61
CH.MUGIO.HHN. ML:1.4 0.000023097858000000003 0.2048 AML other m 2021-12-27T16:55:15.42
CH.MUGIO.HHE. ML:1.3 0.00001768936 0.2816 AML other m 2021-12-27T16:55:15.32
CH.FUORN.HHE. ML:0.8 0.0000210753544 0.192 AML other m 2021-12-27T16:55:00.12
CH.FUORN.HHN. ML:0.9 0.000024698805000000002 0.1152 AML other m 2021-12-27T16:55:00.78
IV.BRMO.HHE. ML:0.9 0.000015405325 0.2688 AML other m 2021-12-27T16:55:05.56
IV.BRMO.HHN. ML:0.9 0.000017060875 0.1152 AML other m 2021-12-27T16:55:03.89
IV.MDI.HHE. ML:1.5 0.00003052698 0.1792 AML other m 2021-12-27T16:55:17.72
IV.MDI.HHN. ML:1.4 0.000020796885 0.1408 AML other m 2021-12-27T16:55:17.73
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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