INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.0 on date 11-05-2018 and time 16:46:04 (Italy) in region 1 km E Licciana Nardi (MS)

A magnitude ML 1.0 earthquake occured in region: 1 km E Licciana Nardi (MS), on

  • 11-05-2018 14:46:04 (UTC)
  • 11-05-2018 16:46:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.26, 10.06 at 11 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
Licciana Nardi MS 1 4949 4949
Fivizzano MS 6 7925 12874
Comano MS 7 714 13588
Bagnone MS 7 1887 15475
Tresana MS 9 2044 17519
Villafranca in Lunigiana MS 9 4770 22289
Aulla MS 9 11263 33552
Podenzana MS 11 2180 35732
Casola in Lunigiana MS 12 988 36720
Filattiera MS 12 2309 39029
Mulazzo MS 13 2424 41453
Fosdinovo MS 15 4883 46336
Bolano SP 15 7813 54149
Santo Stefano di Magra SP 16 9360 63509
Minucciano LU 16 2102 65611
Monchio delle Corti PR 17 933 66544
Calice al Cornoviglio SP 18 1138 67682
Sarzana SP 18 21976 89658
Pontremoli MS 19 7357 97015
Castelnuovo Magra SP 19 8415 105430
Follo SP 19 6337 111767
Vezzano Ligure SP 19 7356 119123
Ortonovo SP 20 8277 127400

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km N of Carrara (63133 inhabitants)
25 Km NE of La Spezia (93959 inhabitants)
26 Km N of Massa (69479 inhabitants)
47 Km NW of Viareggio (62467 inhabitants)
59 Km NW of Lucca (89046 inhabitants)
64 Km SW of Parma (192836 inhabitants)
66 Km SW of Reggio nell'Emilia (171345 inhabitants)
67 Km NW of Pisa (89158 inhabitants)
78 Km W of Pistoia (90315 inhabitants)
81 Km SW of Modena (184973 inhabitants)
82 Km N of Livorno (159219 inhabitants)
88 Km SW of Carpi (70699 inhabitants)
91 Km E of Genova (586655 inhabitants)
92 Km SE of Piacenza (102191 inhabitants)
94 Km W of Prato (191150 inhabitants)
97 Km S of Cremona (71901 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 1.0 2018-05-11
14:46:04
44.27 10.06 11 2018-05-11
14:51:21
Sala Sismica INGV-Roma 56762621
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-05-11 14:46:04 ± 0.12
Latitude 44.27 ± 0.01
Longitude 10.06 ± 0.01
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 56762621

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 636
Semi-minor axis of confidence ellipse (meter) 566
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 47
Circular confidence region, given by single value of horizontal uncertainty (meter) 640
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 106
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.12141
Epicentral distance of station farthest from the epicenter (degree) 0.38851
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 56762621
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-05-11 14:51:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MSSA.HHN. 2018-05-11T14:46:18.76 0.3 undecidable manual S 278 0.3885 50 -0.17 70
GU.SARM.EHZ. 2018-05-11T14:46:15.16 0.3 undecidable manual S 108 0.2608 50 0.01 74
IV.PLMA.HHZ. 2018-05-11T14:46:14.90 0.3 undecidable manual S 214 0.259 50 -0.21 71
IV.MSSA.HHN. 2018-05-11T14:46:13.48 0.6 undecidable manual P 278 0.3885 50 0.46 44
GU.GRAM.HHZ. 2018-05-11T14:46:13.78 0.6 undecidable manual S 2 0.2266 50 -0.36 46
IV.PLMA.HHZ. 2018-05-11T14:46:11.06 0.3 undecidable manual P 214 0.259 50 0.24 71
GU.GRAM.HHZ. 2018-05-11T14:46:10.32 0.1 undecidable manual P 2 0.2266 50 0.06 99
GU.SARM.EHZ. 2018-05-11T14:46:10.99 0.6 undecidable manual P 108 0.2608 50 0.15 48
GU.EQUI.HHZ. 2018-05-11T14:46:10.74 0.3 undecidable manual S 145 0.1214 129 -0.25 73
GU.EQUI.HHZ. 2018-05-11T14:46:08.53 0.1 undecidable manual P 145 0.1214 129 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.EQUI.HHN. ML:0.9 7.5972205E-5 0.1984 AML other m 2018-05-11T14:46:11.36
GU.EQUI.HHE. ML:1.2 0.00014277996 0.1856 AML other m 2018-05-11T14:46:10.99
GU.GRAM.HHN. ML:1.1 7.9209945E-5 0.1856 AML other m 2018-05-11T14:46:14.63
GU.GRAM.HHE. ML:0.9 4.415475E-5 0.2752 AML other m 2018-05-11T14:46:15.60
GU.SARM.EHN. ML:1 5.7113986E-5 0.16 AML other m 2018-05-11T14:46:15.42
GU.SARM.EHE. ML:1 5.4544955E-5 0.32 AML other m 2018-05-11T14:46:15.59
IV.PLMA.HHN. ML:0.8 3.253902E-5 0.2816 AML other m 2018-05-11T14:46:15.24
IV.PLMA.HHE. ML:0.5 1.3333515E-5 0.096 AML other m 2018-05-11T14:46:15.24
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