Earthquake with magnitude of ML 0.9 on date 21-03-2020 and time 11:35:17 (Italy) in region 2 km W Fosciandora (LU)

A magnitude ML 0.9 earthquake occured in region: 2 km W Fosciandora (LU), on

  • 21-03-2020 10:35:17 (UTC)
  • 21-03-2020 11:35:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.12, 10.44 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
Fosciandora LU 2 602 602
Castelnuovo di Garfagnana LU 2 5950 6552
Pieve Fosciana LU 2 2414 8966
Castiglione di Garfagnana LU 4 1818 10784
Molazzana LU 5 1043 11827
Villa Collemandina LU 5 1334 13161
Barga LU 7 10034 23195
Gallicano LU 7 3807 27002
Fabbriche di Vergemoli LU 9 768 27770
Careggine LU 9 564 28334
San Romano in Garfagnana LU 9 1410 29744
Camporgiano LU 9 2176 31920
Coreglia Antelminelli LU 10 5215 37135
Vagli Sotto LU 12 939 38074
Piazza al Serchio LU 13 2367 40441
Sillano Giuncugnano LU 16 1085 41526
Pescaglia LU 17 3526 45052
Bagni di Lucca LU 17 6161 51213
Pievepelago MO 17 2222 53435
Stazzema LU 18 3193 56628
Borgo a Mozzano LU 18 6994 63622
Fiumalbo MO 18 1280 64902
Abetone PT 19 621 65523
Minucciano LU 19 2102 67625

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km E of Massa (69479 inhabitants)
27 Km E of Carrara (63133 inhabitants)
31 Km N of Lucca (89046 inhabitants)
32 Km NE of Viareggio (62467 inhabitants)
44 Km W of Pistoia (90315 inhabitants)
45 Km N of Pisa (89158 inhabitants)
49 Km E of La Spezia (93959 inhabitants)
59 Km W of Prato (191150 inhabitants)
64 Km N of Livorno (159219 inhabitants)
66 Km S of Reggio nell'Emilia (171345 inhabitants)
70 Km SW of Modena (184973 inhabitants)
72 Km NW of Scandicci (50609 inhabitants)
76 Km S of Parma (192836 inhabitants)
76 Km NW of Firenze (382808 inhabitants)
82 Km SW of Carpi (70699 inhabitants)
83 Km W 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 0.9 2020-03-21
10:35:17
44.12 10.44 9 2020-03-21
12:34:55
Sala Sismica INGV-Roma 77436721
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-21 10:35:17 ± 0.11
Latitude 44.12 ± 0.00
Longitude 10.44 ± 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 77436721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 526
Semi-minor axis of confidence ellipse (meter) 382
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 245
Circular confidence region, given by single value of horizontal uncertainty (meter) 530
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 112
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.4038
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 77436721
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-21 12:34:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PII.HHZ. 2020-03-21T10:35:31.61 0.3 undecidable manual S 171 0.4038 50 -0.35 67
GU.GSCL.HHN. 2020-03-21T10:35:27.45 0.6 undecidable manual S 25 0.2545 108 0.04 49
GU.POPM.HHZ. 2020-03-21T10:35:26.53 0.3 undecidable manual S 108 0.2428 109 -0.45 68
GU.EQUI.HHE. 2020-03-21T10:35:25.43 0.3 undecidable manual S 283 0.2077 112 -0.31 70
IV.PII.HHZ. 2020-03-21T10:35:25.54 0.1 undecidable manual P 171 0.4038 50 -0.15 93
GU.MAIM.HHE. 2020-03-21T10:35:25.73 0.3 undecidable manual S 169 0.2104 111 -0.08 74
IV.NDIM.HNZ. 2020-03-21T10:35:24.22 3.0 negative manual P -0.63 0
GU.GSCL.HHN. 2020-03-21T10:35:23.35 0.1 undecidable manual P 25 0.2545 108 0.29 93
IV.BDI.HHZ. 2020-03-21T10:35:22.70 0.3 undecidable manual S 117 0.1286 123 -0.29 72
GU.MAIM.HHE. 2020-03-21T10:35:22.42 0.1 undecidable manual P 169 0.2104 111 0.28 94
GU.EQUI.HHE. 2020-03-21T10:35:22.24 0.1 undecidable manual P 283 0.2077 112 0.14 97
GU.POPM.HHZ. 2020-03-21T10:35:22.79 0.1 undecidable manual P 108 0.2428 109 -0.02 99
GU.CARD.HHZ. 2020-03-21T10:35:22.17 0.3 undecidable manual S 161 0.0998 129 0.06 76
GU.CARD.HHZ. 2020-03-21T10:35:20.45 0.1 undecidable manual P 161 0.0998 129 0.45 93
IV.BDI.HHZ. 2020-03-21T10:35:20.75 0.1 undecidable manual P 117 0.1286 123 0.24 96
GU.SARM.EHE. 2020-03-21T10:35:20.75 0.3 undecidable manual S 338 0.0683 140 -0.49 69
MN.VLC.HHZ. 2020-03-21T10:35:20.68 0.1 undecidable manual S 317 0.0531 147 -0.21 99
MN.VLC.HHZ. 2020-03-21T10:35:19.52 0.1 undecidable manual P 317 0.0531 147 0.22 98
GU.SARM.EHE. 2020-03-21T10:35:19.62 0.1 undecidable manual P 338 0.0683 140 0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.VLC.HHE. ML:0.8 0.0001051 1.32 AML other m 2020-03-21T10:35:20.85
MN.VLC.HHN. ML:0.8 0.000118 0.26 AML other m 2020-03-21T10:35:21.34
GU.CARD.HHE. ML:1.2 0.0001795 0.1 AML other m 2020-03-21T10:35:22.37
GU.CARD.HHN. ML:1 0.00013 0.36 AML other m 2020-03-21T10:35:22.79
IV.BDI.HHE. ML:0.6 4.66E-5 1.06 AML other m 2020-03-21T10:35:22.43
IV.BDI.HHN. ML:0.8 5.81E-5 0.5 AML other m 2020-03-21T10:35:23.61
GU.POPM.HHN. ML:1 5.595E-5 0.6 AML other m 2020-03-21T10:35:27.34
GU.POPM.HHE. ML:1.2 7.855E-5 0.74 AML other m 2020-03-21T10:35:27.41
MN.VLC.HNE. ML:0.7 8.5275985E-5 0.1792 AML other m 2020-03-21T10:35:20.85
MN.VLC.HNN. ML:0.7 9.546725E-5 0.224 AML other m 2020-03-21T10:35:21.45
IV.PII.HHE. ML:1.2 4.8894815E-5 0.2176 AML other m 2020-03-21T10:35:32.03
IV.PII.HHN. ML:1 3.0415685E-5 0.224 AML other m 2020-03-21T10:35:33.43
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