Earthquake with magnitude of ML 1.1 on date 06-04-2020 and time 18:09:02 (Italy) in region 2 km W Fabbriche di Vergemoli (LU)

A magnitude ML 1.1 earthquake occured in region: 2 km W Fabbriche di Vergemoli (LU), on

  • 06-04-2020 16:09:02 (UTC)
  • 06-04-2020 18:09:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.06, 10.36 at 9 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Fabbriche di Vergemoli LU 2 768 768
Molazzana LU 5 1043 1811
Gallicano LU 6 3807 5618
Castelnuovo di Garfagnana LU 7 5950 11568
Careggine LU 8 564 12132
Stazzema LU 8 3193 15325
Vagli Sotto LU 9 939 16264
Pieve Fosciana LU 9 2414 18678
Fosciandora LU 10 602 19280
Barga LU 11 10034 29314
Pescaglia LU 11 3526 32840
Castiglione di Garfagnana LU 11 1818 34658
Camporgiano LU 11 2176 36834
Villa Collemandina LU 12 1334 38168
Seravezza LU 12 13073 51241
San Romano in Garfagnana LU 12 1410 52651
Coreglia Antelminelli LU 14 5215 57866
Camaiore LU 14 32513 90379
Piazza al Serchio LU 15 2367 92746
Pietrasanta LU 15 24007 116753
Montignoso MS 15 10323 127076
Minucciano LU 17 2102 129178
Massa MS 17 69479 198657
Borgo a Mozzano LU 17 6994 205651
Forte dei Marmi LU 19 7510 213161
Sillano Giuncugnano LU 19 1085 214246
Bagni di Lucca LU 20 6161 220407

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km E of Massa (69479 inhabitants)
21 Km E of Carrara (63133 inhabitants)
23 Km NE of Viareggio (62467 inhabitants)
26 Km NW of Lucca (89046 inhabitants)
38 Km N of Pisa (89158 inhabitants)
43 Km E of La Spezia (93959 inhabitants)
47 Km W of Pistoia (90315 inhabitants)
56 Km N of Livorno (159219 inhabitants)
63 Km W of Prato (191150 inhabitants)
74 Km W of Scandicci (50609 inhabitants)
74 Km SW of Reggio nell'Emilia (171345 inhabitants)
79 Km W of Firenze (382808 inhabitants)
80 Km SW of Modena (184973 inhabitants)
83 Km S of Parma (192836 inhabitants)
91 Km SW of Carpi (70699 inhabitants)
92 Km SW of Bologna (386663 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.1 2020-04-06
16:09:02
44.06 10.36 9 2020-04-06
16:17:30
Sala Sismica INGV-Roma 77954501
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-06 16:09:02 ± 0.08
Latitude 44.06 ± 0.00
Longitude 10.36 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77954501

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 520
Semi-minor axis of confidence ellipse (meter) 302
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 41
Circular confidence region, given by single value of horizontal uncertainty (meter) 520
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.09623
Epicentral distance of station farthest from the epicenter (degree) 0.35793
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 77954501
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-06 16:17:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PII.HHZ. 2020-04-06T16:09:15.93 0.3 undecidable manual S 160 0.3579 50 -0.03 71
GU.POPM.HHZ. 2020-04-06T16:09:13.83 0.1 undecidable manual S 93 0.2878 50 -0.07 95
GU.MASSA.EHE. 2020-04-06T16:09:10.88 0.6 undecidable manual S 256 0.179 115 0.79 40
IV.PII.HHZ. 2020-04-06T16:09:10.38 0.6 negative manual P 160 0.3579 50 0.11 47
GU.GSCL.HHE. 2020-04-06T16:09:10.17 0.1 undecidable manual P 30 0.3354 50 0.28 91
GU.MAIM.HHE. 2020-04-06T16:09:09.88 0.1 undecidable manual S 146 0.1736 115 -0.03 98
IV.BDI.HHN. 2020-04-06T16:09:09.67 0.6 undecidable manual S 88 0.1718 116 -0.16 48
GU.EQUI.HHE. 2020-04-06T16:09:09.91 0.6 undecidable manual S 306 0.1817 115 -0.26 47
GU.POPM.HHZ. 2020-04-06T16:09:08.95 0.1 undecidable manual P 93 0.2878 50 -0.13 94
MN.VLC.HHZ. 2020-04-06T16:09:07.57 0.1 undecidable manual S 12 0.1034 129 -0.01 100
GU.MASSA.EHE. 2020-04-06T16:09:06.31 0.1 undecidable manual P 256 0.179 115 -0.57 87
GU.EQUI.HHE. 2020-04-06T16:09:06.95 0.1 undecidable manual P 306 0.1817 115 0.03 98
GU.MAIM.HHE. 2020-04-06T16:09:06.96 0.3 undecidable manual P 146 0.1736 115 0.19 71
IV.BDI.HHN. 2020-04-06T16:09:06.74 0.1 undecidable manual P 88 0.1718 116 0.01 99
MN.VLC.HHZ. 2020-04-06T16:09:05.50 0.1 negative manual P 12 0.1034 129 0.07 99
GU.CARD.HHZ. 2020-04-06T16:09:05.42 0.3 positive manual P 110 0.0962 131 0.11 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.CARD.HHE. ML:1.4 0.0002835 0.54 AML other m 2020-04-06T16:09:08.59
GU.CARD.HHN. ML:1.3 0.000279 0.66 AML other m 2020-04-06T16:09:09.60
MN.VLC.HHN. ML:0.8 8.55E-5 0.76 AML other m 2020-04-06T16:09:10.61
MN.VLC.HHE. ML:0.8 8.515E-5 1.16 AML other m 2020-04-06T16:09:10.03
GU.POPM.HHE. ML:1 4.875E-5 0.68 AML other m 2020-04-06T16:09:14.19
GU.POPM.HHN. ML:1.1 5.68E-5 0.2 AML other m 2020-04-06T16:09:14.84
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download