Earthquake with magnitude of ML 0.5 on date 30-03-2020 and time 20:09:13 (UTC) in region 1 km E Camaiore (LU)

A magnitude ML 0.5 earthquake occured in region: 1 km E Camaiore (LU), on

  • 30-03-2020 20:09:13 (UTC)
  • 30-03-2020 22:09:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.94, 10.32 at 8 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
Camaiore LU 1 32513 32513
Stazzema LU 7 3193 35706
Massarosa LU 8 22471 58177
Pietrasanta LU 8 24007 82184
Pescaglia LU 8 3526 85710
Viareggio LU 10 62467 148177
Seravezza LU 10 13073 161250
Forte dei Marmi LU 13 7510 168760
Fabbriche di Vergemoli LU 14 768 169528
Montignoso MS 15 10323 179851
Gallicano LU 17 3807 183658
Molazzana LU 17 1043 184701
Lucca LU 18 89046 273747
Vecchiano PI 18 12189 285936
Massa MS 18 69479 355415
Borgo a Mozzano LU 18 6994 362409
Vagli Sotto LU 20 939 363348

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km NE of Viareggio (62467 inhabitants)
18 Km NW of Lucca (89046 inhabitants)
18 Km SE of Massa (69479 inhabitants)
24 Km SE of Carrara (63133 inhabitants)
25 Km N of Pisa (89158 inhabitants)
43 Km N of Livorno (159219 inhabitants)
44 Km E of La Spezia (93959 inhabitants)
48 Km W of Pistoia (90315 inhabitants)
63 Km W of Prato (191150 inhabitants)
72 Km W of Scandicci (50609 inhabitants)
77 Km W of Firenze (382808 inhabitants)
88 Km S of Reggio nell'Emilia (171345 inhabitants)
92 Km SW of Modena (184973 inhabitants)
96 Km S of Parma (192836 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 0.5 2020-03-30
20:09:13
43.94 10.32 8 2020-03-30
20:18:31
Sala Sismica INGV-Roma 77712881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-30 20:09:13 ± 0.2
Latitude 43.94 ± 0.01
Longitude 10.32 ± 0.01
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77712881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 920
Semi-minor axis of confidence ellipse (meter) 75
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 35
Circular confidence region, given by single value of horizontal uncertainty (meter) 920
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 151
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) 0.43
Epicentral distance of station closest to the epicenter (degree) 0.12411
Epicentral distance of station farthest from the epicenter (degree) 0.33095
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:0.5

Field Value
Value 0.5
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 77712881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-30 20:18:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.POPM.HHZ. 2020-03-30T20:09:25.86 0.6 undecidable manual S 71 0.331 50 -0.2 46
GU.EQUI.HHZ. 2020-03-30T20:09:22.42 0.3 undecidable manual S 332 0.2581 106 -1.03 53
MN.VLC.HHZ. 2020-03-30T20:09:22.11 0.1 undecidable manual S 12 0.2266 108 -0.17 95
IV.PII.HHZ. 2020-03-30T20:09:22.65 0.1 undecidable manual S 146 0.2608 105 -0.88 75
IV.BDI.HNZ. 2020-03-30T20:09:21.97 0.3 undecidable manual S 57 0.2338 107 -0.56 65
GU.POPM.HHZ. 2020-03-30T20:09:20.74 0.3 undecidable manual P 71 0.331 50 0.15 70
GU.MASSA.EHZ. 2020-03-30T20:09:20.14 0.1 undecidable manual S 297 0.1673 113 0.02 99
IV.PII.HHZ. 2020-03-30T20:09:19.21 0.1 undecidable manual P 146 0.2608 105 0.08 96
GU.CARD.HHZ. 2020-03-30T20:09:19.48 0.1 undecidable manual S 52 0.1457 116 0.1 98
IV.BDI.HNZ. 2020-03-30T20:09:18.66 0.6 undecidable manual P 57 0.2338 107 0.1 48
GU.MAIM.HHZ. 2020-03-30T20:09:18.68 0.1 undecidable manual S 101 0.1241 120 0.02 100
GU.EQUI.HHZ. 2020-03-30T20:09:18.91 0.1 undecidable manual P 332 0.2581 106 -0.18 94
MN.VLC.HHZ. 2020-03-30T20:09:18.68 0.1 undecidable manual P 12 0.2266 108 0.27 93
GU.CARD.HHZ. 2020-03-30T20:09:17.24 0.1 undecidable manual P 52 0.1457 116 0.51 90
GU.MASSA.EHZ. 2020-03-30T20:09:17.58 0.1 undecidable manual P 297 0.1673 113 0.42 91
GU.MAIM.HHZ. 2020-03-30T20:09:16.94 0.1 undecidable manual P 101 0.1241 120 0.62 86
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.CARD.HHE. ML:0.7 4.413034E-5 0.064 AML other m 2020-03-30T20:09:19.85
GU.CARD.HHN. ML:0.8 6.0173215E-5 0.0768 AML other m 2020-03-30T20:09:20.04
MN.VLC.HHN. ML:-0.1 6.6266355E-6 0.0512 AML other m 2020-03-30T20:09:18.98
IV.PII.HHE. ML:0.5 1.37034985E-5 0.1408 AML other m 2020-03-30T20:09:24.08
IV.PII.HHN. ML:0.5 1.6096955E-5 0.384 AML other m 2020-03-30T20:09:25.06
GU.POPM.HHE. ML:0.6 1.2684712E-5 0.2816 AML other m 2020-03-30T20:09:27.90
GU.POPM.HHN. ML:0.4 1.2290932E-5 0.128 AML other m 2020-03-30T20:09:26.54
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