Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 01-04-2024 and time 00:26:04 (Italy) in region 2 km E San Romano in Garfagnana (LU)

A magnitude ML 1.0 earthquake occured in region: 2 km E San Romano in Garfagnana (LU), on

  • 31-03-2024 22:26:04 (UTC)
  • 01-04-2024 00:26:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1740, 10.3690 at 6 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
San Romano in Garfagnana LU 2 1410 1410
Villa Collemandina LU 3 1334 2744
Camporgiano LU 3 2176 4920
Castiglione di Garfagnana LU 4 1818 6738
Piazza al Serchio LU 6 2367 9105
Pieve Fosciana LU 6 2414 11519
Careggine LU 7 564 12083
Sillano Giuncugnano LU 8 1085 13168
Castelnuovo di Garfagnana LU 8 5950 19118
Fosciandora LU 10 602 19720
Vagli Sotto LU 10 939 20659
Molazzana LU 12 1043 21702
Minucciano LU 13 2102 23804
Fabbriche di Vergemoli LU 14 768 24572
Gallicano LU 14 3807 28379
Barga LU 15 10034 38413
Casola in Lunigiana MS 16 988 39401
Coreglia Antelminelli LU 17 5215 44616

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km NE of Massa (69479 inhabitants)
24 Km E of Carrara (63133 inhabitants)
35 Km N of Viareggio (62467 inhabitants)
38 Km N of Lucca (89046 inhabitants)
44 Km E of La Spezia (93959 inhabitants)
51 Km N of Pisa (89158 inhabitants)
51 Km NW of Pistoia (90315 inhabitants)
62 Km SW of Reggio nell'Emilia (171345 inhabitants)
67 Km W of Prato (191150 inhabitants)
69 Km SW of Modena (184973 inhabitants)
69 Km N of Livorno (159219 inhabitants)
70 Km S of Parma (192836 inhabitants)
79 Km SW of Carpi (70699 inhabitants)
80 Km NW of Scandicci (50609 inhabitants)
84 Km NW of Firenze (382808 inhabitants)
85 Km W of Bologna (386663 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 1.0 2024-03-31
22:26:04		 44.1743 10.3692 6 2024-03-31
22:34:33		 Sala Sismica INGV-Roma 126351261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-03-31 22:26:04 ± 0.09
Latitude 44.1743 ± 0.0036
Longitude 10.3692 ± 0.0050
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 126351261

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 473
Semi-minor axis of confidence ellipse (meter) 102
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 239
Circular confidence region, given by single value of horizontal uncertainty (meter) 470.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 116
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.30667
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 126351261
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-03-31 22:34:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.PII.HHZ. 2024-03-31T22:26:19.92 0.6 undecidable manual S 100
IV.ERBM.EHE. 2024-03-31T22:26:13.90 0.6 undecidable manual S 7 27.4503 102 -0.01 48
GU.POPM.HHZ. 2024-03-31T22:26:10.83 0.1 positive manual P 115 34.0437 100 -0.27 90
GU.EQUI.HHZ. 2024-03-31T22:26:10.31 1.0 undecidable manual S 267 17.1717 109 -0.19 24
GU.CARD.HHZ. 2024-03-31T22:26:10.96 0.6 undecidable manual S 151 18.7701 108 -0.04 49
IV.ERBM.EHE. 2024-03-31T22:26:09.89 0.3 undecidable manual P 7 27.4503 102 0.1 71
GU.CARD.HHZ. 2024-03-31T22:26:08.13 0.1 undecidable manual P 151 18.7701 108 0.02 98
IV.BDI.HNE. 2024-03-31T22:26:08.88 0.1 undecidable manual P 124 21.867 105 0.17 94
GU.EQUI.HHZ. 2024-03-31T22:26:07.77 0.1 undecidable manual P 267 17.1717 109 -0.05 97
GU.SARM.EHE. 2024-03-31T22:26:06.17 0.6 undecidable manual S 67 2.7972 155 -0.29 47
MN.VLC.HNE. 2024-03-31T22:26:06.43 0.6 undecidable manual S 140 2.1978 160 0.04 50
GU.SARM.EHE. 2024-03-31T22:26:05.53 0.1 undecidable manual P 67 2.7972 155 0.04 100
MN.VLC.HNE. 2024-03-31T22:26:05.64 0.1 undecidable manual P 140 2.1978 160 0.19 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.CARD.HHE. ML:1.0 0.00009089153 0.12 AML other m 2024-03-31T22:26:12.30
GU.CARD.HHN. ML:1.1 0.00010685957000000001 0.06 AML other m 2024-03-31T22:26:11.84
GU.EQUI.HHE. ML:0.8 0.000054245509999999995 0.1 AML other m 2024-03-31T22:26:10.55
GU.EQUI.HHN. ML:0.8 0.00006682079500000001 0.18 AML other m 2024-03-31T22:26:10.50
GU.POPM.HHE. ML:1.1 0.00005174276499999999 0.2 AML other m 2024-03-31T22:26:17.07
GU.POPM.HHN. ML:0.9 0.00003263126 0.16 AML other m 2024-03-31T22:26:17.09
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