Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 25-11-2023 and time 11:49:37 (Italy) in region Confine Italia Svizzera (SVIZZERA)

A magnitude ML 1.8 earthquake occured in region: Confine Italia Svizzera (SVIZZERA), on

  • 25-11-2023 10:49:37 (UTC)
  • 25-11-2023 11:49:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.5780, 10.3940 at 7 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.

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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
Tubre BZ 9 977 977
Stelvio BZ 12 1161 2138
Bormio SO 12 4121 6259
Valdidentro SO 12 4125 10384
Valfurva SO 13 2638 13022
Prato allo Stelvio BZ 16 3474 16496
Glorenza BZ 16 896 17392
Valdisotto SO 16 3556 20948
Malles Venosta BZ 17 5162 26110
Sluderno BZ 18 1804 27914

Municipalities with at least 50000 inhabitants

An earthquake occurred to
74 Km W of Bolzano (106441 inhabitants)
80 Km NW of Trento (117317 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 1.8 2023-11-25
10:49:37		 46.578 10.3943 7 2023-11-25
11:14:42		 Sala Sismica INGV-Roma 123428121
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-11-25 10:49:37 ± 0.06
Latitude 46.5780 ± 0.0036
Longitude 10.3943 ± 0.0065
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 123428121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 430
Semi-minor axis of confidence ellipse (meter) 427
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 253
Circular confidence region, given by single value of horizontal uncertainty (meter) 430.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 128
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.14214
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.4
Num. used stations 12
Type of magnitude ML
Reference to an origin 123428121
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-11-25 11:14:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
SI.ABSI.HHE. 2023-11-25T10:50:00.51 0.3 undecidable manual S 76 72.4719 50 -0.22 65
CH.MUGIO.HHE. 2023-11-25T10:49:59.55 0.1 undecidable manual P 235 126.7731 50 0.07 81
IV.APPI.EHE. 2023-11-25T10:49:58.52 0.3 undecidable manual S 100 64.5909 50 -0.1 68
IV.MDI.HHE. 2023-11-25T10:49:56.21 0.1 undecidable manual P 210 103.7184 50 0.28 81
SI.ROSI.HHZ. 2023-11-25T10:49:53.54 0.1 undecidable manual P 63 86.5467 50 0.25 84
IV.MAGA.HHZ. 2023-11-25T10:49:53.80 0.1 undecidable manual P 168 90.8424 50 -0.15 85
ST.KOSI.HHZ. 2023-11-25T10:49:52.33 3.0 undecidable manual P 0
SI.ABSI.HHE. 2023-11-25T10:49:51.04 0.1 undecidable manual P 76 72.4719 50 -0.08 90
MN.TUE.HHZ. 2023-11-25T10:49:51.53 3.0 negative manual P -0.62 0
IV.APPI.EHE. 2023-11-25T10:49:50.08 0.1 undecidable manual P 100 64.5909 50 0.17 89
ST.RONC.EHZ. 2023-11-25T10:49:50.49 0.1 undecidable manual P 165 68.5758 50 -0.03 91
IV.MABI.HHZ. 2023-11-25T10:49:48.74 0.1 undecidable manual P 171 58.6968 50 -0.26 89
ST.CARE.EHE. 2023-11-25T10:49:43.92 0.1 undecidable manual P 126 28.5492 103 0.06 98
IV.BRMO.HHZ. 2023-11-25T10:49:42.52 0.1 undecidable manual S 189 11.3775 121 -0.09 100
CH.FUORN.HHZ. 2023-11-25T10:49:42.27 0.1 undecidable manual S 295 10.9779 122 -0.22 97
ST.MOSI.HHZ. 2023-11-25T10:49:41.15 3.0 undecidable manual P 0
IV.BRMO.HHZ. 2023-11-25T10:49:40.82 0.1 undecidable manual P 189 11.3775 121 0.17 98
CH.FUORN.HHZ. 2023-11-25T10:49:40.70 0.1 undecidable manual P 295 10.9779 122 0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
CH.FUORN.HHE. ML:2.1 0.00163 0.14 AML other m 2023-11-25T10:49:42.50
CH.FUORN.HHN. ML:2.3 0.002655 0.14 AML other m 2023-11-25T10:49:42.45
SI.MOSI.HHE. ML:1.9 0.0011075 1 AML other m 2023-11-25T10:49:43.97
SI.MOSI.HHN. ML:2.2 0.0019199999999999998 0.68 AML other m 2023-11-25T10:49:45.13
CH.BERNI.HHN. ML:1.4 0.00011549999999999999 0.22 AML other m 2023-11-25T10:49:49.27
CH.BERNI.HHE. ML:1.6 0.000163 0.24 AML other m 2023-11-25T10:49:49.31
CH.DAVOX.HHE. ML:2.4 0.0007059999999999999 0.3 AML other m 2023-11-25T10:49:51.71
CH.DAVOX.HHN. ML:2.4 0.0007785 0.34 AML other m 2023-11-25T10:49:52.35
IV.MABI.HHN. ML:1.6 0.0000887 0.14 AML other m 2023-11-25T10:49:55.84
IV.MABI.HHE. ML:1.6 0.00008015 0.7 AML other m 2023-11-25T10:49:55.55
MN.TUE.HHE. ML:1.4 0.00003655 0.56 AML other m 2023-11-25T10:50:03.33
MN.TUE.HHN. ML:1.5 0.000043349999999999997 0.14 AML other m 2023-11-25T10:50:03.43
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