Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 14-02-2023 and time 01:37:54 (UTC) in region Svizzera (SVIZZERA)

A magnitude ML 1.4 earthquake occured in region: Svizzera (SVIZZERA), on

  • 14-02-2023 01:37:54 (UTC)
  • 14-02-2023 02:37:54 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.6180, 9.9710 at 4 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Livigno SO 15 6389 6389

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 1.4 2023-02-14
01:37:54		 46.6177 9.9713 4 2024-03-01
17:18:16		 Bollettino Sismico Italiano INGV 120723591
Reviewed
Rev100 		ML 1.4 2023-02-14
01:37:54		 46.6187 9.9738 3 2023-02-14
01:48:36		 Sala Sismica INGV-Roma 114424381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-14 01:37:54 ± 0.1
Latitude 46.6177 ± 0.0054
Longitude 9.9713 ± 0.0079
Depth (km) 4 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 120723591

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 530
Semi-minor axis of confidence ellipse (meter) 464
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 223
Circular confidence region, given by single value of horizontal uncertainty (meter) 530.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 110
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) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.17447
Epicentral distance of station farthest from the epicenter (degree) 1.14753
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 120723591
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-09-04 01:06:12

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 114424381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-14 01:48:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
ST.ZIAN.EHZ. 2023-02-14T01:38:17.20 0.3 undecidable manual P 107 127.3725 50 0.22 63
IV.VARE.HHE. 2023-02-14T01:38:17.02 0.3 undecidable manual P 228 124.1868 50 0.54 59
ST.PANI.EHZ. 2023-02-14T01:38:16.32 0.3 undecidable manual P 121 121.8891 50 0.19 64
CH.MUGIO.HHE. 2023-02-14T01:38:13.41 0.3 undecidable manual P 223 105.117 50 -0.12 67
IV.MDI.HHZ. 2023-02-14T01:38:12.31 0.3 undecidable manual P 192 96.126 50 0.16 68
CH.FUSIO.HHE. 2023-02-14T01:38:12.50 0.3 undecidable manual P 260 101.4207 50 -0.48 63
ST.RONC.EHZ. 2023-02-14T01:38:10.67 0.3 undecidable manual P 145 86.5467 50 -0.01 71
IV.MABI.HHZ. 2023-02-14T01:38:08.61 0.3 undecidable manual P 146 74.9694 50 -0.29 69
CH.PLONS.HHE. 2023-02-14T01:38:07.28 0.3 undecidable manual P 317 65.5899 50 -0.17 72
IV.BRMO.HHZ. 2023-02-14T01:38:06.30 0.3 undecidable manual S 117 34.3434 96 -0.64 67
CH.FUORN.HHZ. 2023-02-14T01:38:02.87 0.3 undecidable manual S 89 22.2555 99 0.1 79
CH.BERNI.HHZ. 2023-02-14T01:38:02.93 0.3 undecidable manual S 170 22.9548 99 -0.09 79
CH.DAVOX.HHZ. 2023-02-14T01:38:01.67 0.3 undecidable manual S 339 19.3695 100 -0.11 79
IV.BRMO.HHZ. 2023-02-14T01:38:01.74 0.3 undecidable manual P 117 34.3434 96 -0.13 77
CH.FUORN.HHZ. 2023-02-14T01:37:59.80 0.1 undecidable manual P 89 22.2555 99 0.33 100
CH.BERNI.HHZ. 2023-02-14T01:37:59.94 0.3 undecidable manual P 170 22.9548 99 0.33 75
CH.DAVOX.HHZ. 2023-02-14T01:37:58.96 0.3 undecidable manual P 339 19.3695 100 0.06 80
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BRMO.HHE. ML:1.0 0.0000435 1.66 AML other m 2023-02-14T01:38:07.86
IV.BRMO.HHN. ML:1.1 0.00006195 0.2 AML other m 2023-02-14T01:38:07.18
IV.MABI.HHE. ML:1.4 0.00004185 0.48 AML other m 2023-02-14T01:38:18.76
IV.MABI.HHN. ML:1.4 0.000041 0.18 AML other m 2023-02-14T01:38:19.05
ST.RONC.EHE. ML:1.8 0.00008545 0.18 AML other m 2023-02-14T01:38:21.45
ST.RONC.EHN. ML:2.0 0.00012435 0.18 AML other m 2023-02-14T01:38:21.34
IV.MDI.HHE. ML:1.4 0.000028875695 0.36 AML other m 2023-02-14T01:38:24.88
IV.MDI.HHN. ML:1.3 0.000020518309999999997 0.24 AML other m 2023-02-14T01:38:30.12
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