Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 21-03-2024 and time 17:14:12 (UTC) in region 3 km SW Calice al Cornoviglio (SP)

A magnitude ML 0.9 earthquake occured in region: 3 km SW Calice al Cornoviglio (SP), on

  • 21-03-2024 17:14:12 (UTC)
  • 21-03-2024 18:14:12 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.2200, 9.8250 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.

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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
Calice al Cornoviglio SP 3 1138 1138
Beverino SP 5 2429 3567
Rocchetta di Vara SP 6 703 4270
Bolano SP 7 7813 12083
Follo SP 7 6337 18420
Brugnato SP 8 1270 19690
Borghetto di Vara SP 8 938 20628
Riccò del Golfo di Spezia SP 9 3698 24326
Zignago SP 9 532 24858
Pignone SP 9 565 25423
Podenzana MS 9 2180 27603
Santo Stefano di Magra SP 10 9360 36963
Vezzano Ligure SP 10 7356 44319
Tresana MS 10 2044 46363
Aulla MS 12 11263 57626
La Spezia SP 13 93959 151585
Villafranca in Lunigiana MS 13 4770 156355
Mulazzo MS 13 2424 158779
Arcola SP 13 10607 169386
Carrodano SP 14 503 169889
Sesta Godano SP 15 1377 171266
Vernazza SP 15 848 172114
Riomaggiore SP 15 1576 173690
Filattiera MS 15 2309 175999
Zeri MS 16 1094 177093
Monterosso al Mare SP 16 1464 178557
Sarzana SP 16 21976 200533
Lerici SP 17 10228 210761
Bagnone MS 17 1887 212648
Levanto SP 18 5499 218147
Licciana Nardi MS 18 4949 223096
Pontremoli MS 18 7357 230453
Fosdinovo MS 18 4883 235336
Portovenere SP 18 3630 238966
Carro SP 18 545 239511
Bonassola SP 20 862 240373

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km N of La Spezia (93959 inhabitants)
27 Km NW of Carrara (63133 inhabitants)
33 Km NW of Massa (69479 inhabitants)
52 Km NW of Viareggio (62467 inhabitants)
68 Km NW of Lucca (89046 inhabitants)
73 Km NW of Pisa (89158 inhabitants)
74 Km E of Genova (586655 inhabitants)
76 Km SW of Parma (192836 inhabitants)
83 Km SW of Reggio nell'Emilia (171345 inhabitants)
84 Km NW of Livorno (159219 inhabitants)
93 Km W of Pistoia (90315 inhabitants)
93 Km S of Piacenza (102191 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 0.9 2024-03-21
17:14:12		 44.22 9.8252 10 2024-03-21
17:37:04		 Sala Sismica INGV-Roma 126037441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-03-21 17:14:12 ± 0.15
Latitude 44.2200 ± 0.0117
Longitude 9.8252 ± 0.0125
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 126037441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1390
Semi-minor axis of confidence ellipse (meter) 850
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 33
Circular confidence region, given by single value of horizontal uncertainty (meter) 1390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 121
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.57467
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 5
Type of magnitude ML
Reference to an origin 126037441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-03-21 17:37:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATPI.EHZ. 2024-03-21T17:15:17.09 3.0 undecidable manual Sn 1.64 0
IV.BDI.HHZ. 2024-03-21T17:14:24.53 0.6 undecidable manual P 106 63.7917 50 0.61 41
GU.MAIM.HHZ. 2024-03-21T17:14:24.24 0.6 positive manual P 122 63.0924 50 0.42 44
IV.MSSA.HHZ. 2024-03-21T17:14:22.10 0.3 undecidable manual S 294 26.6511 50 -0.25 72
GU.EQUI.HHZ. 2024-03-21T17:14:21.55 0.6 undecidable manual S 103 26.751 50 -0.83 40
IV.PLMA.HHZ. 2024-03-21T17:14:19.71 0.6 undecidable manual S 173 19.0698 118 -0.28 49
GU.GRAM.HHZ. 2024-03-21T17:14:19.81 1.0 negative manual P 32 35.5422 50 0.24 24
GU.EQUI.HHZ. 2024-03-21T17:14:18.13 0.1 undecidable manual P 103 26.751 50 -0.09 100
IV.MSSA.HHZ. 2024-03-21T17:14:18.30 0.3 undecidable manual P 294 26.6511 50 0.09 75
IV.PLMA.HHZ. 2024-03-21T17:14:17.01 0.1 undecidable manual P 173 19.0698 118 0.17 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PLMA.HHE. ML:1.1 0.00009759999999999999 0.1 AML other m 2024-03-21T17:14:20.05
IV.PLMA.HHN. ML:1.0 0.00008002048 0.08 AML other m 2024-03-21T17:14:20.01
IV.MSSA.HHN. ML:1.3 0.00011399999999999999 0.12 AML other m 2024-03-21T17:14:22.92
GU.EQUI.HHE. ML:0.6 0.0000196939535 0.2 AML other m 2024-03-21T17:14:22.34
GU.EQUI.HHN. ML:0.6 0.000022075545000000002 0.18 AML other m 2024-03-21T17:14:22.18
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