Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 11-03-2023 and time 12:59:34 (UTC) in region Confine Italia Svizzera (SVIZZERA)

A magnitude ML 1.5 earthquake occured in region: Confine Italia Svizzera (SVIZZERA), on

  • 11-03-2023 12:59:34 (UTC)
  • 11-03-2023 13:59:34 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.4530, 9.9910 at 5 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

An earthquake occurred to
88 Km NE of Bergamo (119381 inhabitants)
97 Km W of Trento (117317 inhabitants)
100 Km NE of Como (84495 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 1.5 2023-03-11
12:59:34		 46.4527 9.9907 5 2024-03-01
17:18:03		 Bollettino Sismico Italiano INGV 116382601
Reviewed
Rev100 		ML 1.7 2023-03-11
12:59:34		 46.4427 10.0042 7 2023-03-11
13:18:04		 Sala Sismica INGV-Roma 115253831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-11 12:59:34 ± 0.12
Latitude 46.4527 ± 0.0063
Longitude 9.9907 ± 0.0104
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116382601

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 652
Semi-minor axis of confidence ellipse (meter) 529
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 318
Circular confidence region, given by single value of horizontal uncertainty (meter) 650.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 61
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.15203
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 116382601
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-04-14 14:46:46

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 115253831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-11 13:18:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MRGE.HHZ. 2023-03-11T13:00:06.57 3.0 undecidable manual Pn -1.45 0
ST.ZIAN.EHZ. 2023-03-11T12:59:56.43 3.0 negative manual P 0.99 0
CH.BNALP.HHE. 2023-03-11T12:59:56.65 1.0 undecidable manual P 292 127.872 50 0.48 18
SI.ABSI.HHZ. 2023-03-11T12:59:52.86 1.0 undecidable manual P 73 105.9162 50 0.08 21
ST.VARA.HNZ. 2023-03-11T12:59:52.60 0.1 undecidable manual P 135 98.4237 50 0.98 63
SI.LUSI.HHZ. 2023-03-11T12:59:51.52 1.0 undecidable manual P 126 91.3419 50 0.98 16
CH.FUSIO.HHZ. 2023-03-11T12:59:51.85 0.1 undecidable manual P 271 101.4207 50 -0.24 81
ZO.PDN3.HNZ. 2023-03-11T12:59:50.80 0.6 undecidable manual P 141 91.3419 50 0.27 41
CH.MUGIO.HHN. 2023-03-11T12:59:50.39 0.6 undecidable manual P 231 93.7395 50 -0.51 39
IV.MAGA.HHE. 2023-03-11T12:59:50.42 0.6 undecidable manual P 147 89.7435 50 0.13 42
CH.PLONS.HHZ. 2023-03-11T12:59:49.15 0.6 undecidable manual P 325 80.7636 50 0.24 42
SI.MOSI.HHZ. 2023-03-11T12:59:49.54 0.6 undecidable manual S 67 46.3203 50 -0.89 36
ST.GAGG.HHE. 2023-03-11T12:59:49.40 1.0 undecidable manual P 119 84.7485 50 -0.13 21
IV.MDI.HHZ. 2023-03-11T12:59:48.03 0.6 undecidable manual P 196 78.6657 50 -0.55 39
IV.BAG8.EHE. 2023-03-11T12:59:48.70 0.6 undecidable manual P 152 78.8655 50 0.08 44
ST.RONC.HNZ. 2023-03-11T12:59:47.55 0.3 undecidable manual P 137 71.4729 50 0.08 67
CH.DAVOX.HHZ. 2023-03-11T12:59:47.19 0.6 undecidable manual S 347 37.3293 98 -0.16 47
CH.FUORN.HHZ. 2023-03-11T12:59:44.21 0.6 undecidable manual S 48 27.9498 100 0.08 48
IV.BRMO.HHN. 2023-03-11T12:59:44.07 0.6 undecidable manual S 85 29.2485 100 -0.52 44
IV.MABI.HHZ. 2023-03-11T12:59:44.82 1.0 positive manual P 138 59.6958 50 -0.84 18
SI.MOSI.HHZ. 2023-03-11T12:59:43.20 0.6 undecidable manual P 67 46.3203 50 -0.41 43
CH.DAVOX.HHZ. 2023-03-11T12:59:42.01 0.6 positive manual P 347 37.3293 98 0.19 46
IV.BRMO.HHN. 2023-03-11T12:59:40.25 0.1 undecidable manual P 85 29.2485 100 0.02 97
CH.FUORN.HHZ. 2023-03-11T12:59:40.32 0.1 undecidable manual P 48 27.9498 100 0.36 91
CH.BERNI.HHZ. 2023-03-11T12:59:36.33 0.6 undecidable manual S 150 4.995 136 -0.43 46
CH.BERNI.HHZ. 2023-03-11T12:59:35.79 0.1 undecidable manual P 150 4.995 136 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
CH.BERNI.HHN. ML:0.0 0.0055528225 0.0704 AML other m 2023-03-11T12:59:36.39
CH.BERNI.HHE. ML:0.0 0.004195054 0.0896 AML other m 2023-03-11T12:59:36.38
CH.FUORN.HHE. ML:1.1 0.00007632956 0.1728 AML other m 2023-03-11T12:59:45.48
CH.FUORN.HHN. ML:1.2 0.00008390799 0.1536 AML other m 2023-03-11T12:59:46.13
CH.DAVOX.HHN. ML:1.9 0.0003075707 0.1728 AML other m 2023-03-11T12:59:48.88
CH.DAVOX.HHE. ML:1.9 0.00033392994999999995 0.2112 AML other m 2023-03-11T12:59:48.60
SI.MOSI.HHN. ML:1.8 0.00019745285000000003 0.3584 AML other m 2023-03-11T12:59:52.17
SI.MOSI.HHE. ML:1.6 0.000127 1.52 AML other m 2023-03-11T12:59:52.08
SI.LUSI.HHN. ML:1.8 0.000070817195 0.2624 AML other m 2023-03-11T13:00:02.84
SI.LUSI.HHE. ML:1.3 0.000027373784999999998 0.1792 AML other m 2023-03-11T13:00:03.78
IV.MABI.HHN. ML:1.2 0.000030865700000000005 0.1024 AML other m 2023-03-11T12:59:54.06
IV.MABI.HHE. ML:1.1 0.0000239043225 0.0768 AML other m 2023-03-11T12:59:57.30
CH.FUSIO.HHN. ML:1.5 0.000031725286 0.3072 AML other m 2023-03-11T13:00:05.75
CH.FUSIO.HHE. ML:1.5 0.000029376305000000002 0.1216 AML other m 2023-03-11T13:00:12.08
SI.ABSI.HHE. ML:1.7 0.000042511645 0.2624 AML other m 2023-03-11T13:00:07.74
SI.ABSI.HHN. ML:1.6 0.000033654535 0.2432 AML other m 2023-03-11T13:00:08.06
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