Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 06-03-2021 and time 03:14:17 (Italy) in region 2 km E Tresana (MS)

A magnitude ML 0.7 earthquake occured in region: 2 km E Tresana (MS), on

  • 06-03-2021 02:14:17 (UTC)
  • 06-03-2021 03:14:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.2340, 9.9790 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.

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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
Tresana MS 2 2044 2044
Aulla MS 3 11263 13307
Podenzana MS 4 2180 15487
Licciana Nardi MS 6 4949 20436
Villafranca in Lunigiana MS 7 4770 25206
Bolano SP 8 7813 33019
Bagnone MS 9 1887 34906
Santo Stefano di Magra SP 9 9360 44266
Mulazzo MS 11 2424 46690
Calice al Cornoviglio SP 11 1138 47828
Filattiera MS 11 2309 50137
Fosdinovo MS 12 4883 55020
Fivizzano MS 12 7925 62945
Follo SP 12 6337 69282
Vezzano Ligure SP 13 7356 76638
Sarzana SP 14 21976 98614
Arcola SP 14 10607 109221
Comano MS 14 714 109935
Castelnuovo Magra SP 15 8415 118350
Casola in Lunigiana MS 16 988 119338
Beverino SP 17 2429 121767
Ortonovo SP 17 8277 130044
Rocchetta di Vara SP 18 703 130747
Pontremoli MS 18 7357 138104
Lerici SP 18 10228 148332
La Spezia SP 18 93959 242291
Ameglia SP 19 4365 246656
Riccò del Golfo di Spezia SP 19 3698 250354
Zignago SP 19 532 250886
Minucciano LU 20 2102 252988
Carrara MS 20 63133 316121

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NE of La Spezia (93959 inhabitants)
20 Km NW of Carrara (63133 inhabitants)
25 Km NW of Massa (69479 inhabitants)
46 Km NW of Viareggio (62467 inhabitants)
60 Km NW of Lucca (89046 inhabitants)
67 Km NW of Pisa (89158 inhabitants)
69 Km SW of Parma (192836 inhabitants)
73 Km SW of Reggio nell'Emilia (171345 inhabitants)
80 Km NW of Livorno (159219 inhabitants)
82 Km W of Pistoia (90315 inhabitants)
86 Km E of Genova (586655 inhabitants)
88 Km SW of Modena (184973 inhabitants)
94 Km S of Piacenza (102191 inhabitants)
94 Km SW of Carpi (70699 inhabitants)
98 Km W of Prato (191150 inhabitants)
100 Km S of Cremona (71901 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 0.7 2021-03-06
02:14:17		 44.2342 9.9793 8 2021-03-06
02:19:59		 Sala Sismica INGV-Roma 87801321
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-06 02:14:17 ± 0.08
Latitude 44.2342 ± 0.0036
Longitude 9.9793 ± 0.0063
Depth (km) 8 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 87801321

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 510
Semi-minor axis of confidence ellipse (meter) 450
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 282
Circular confidence region, given by single value of horizontal uncertainty (meter) 510.0
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 9
Number of defining phases 8
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.34084
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 4
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 87801321
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-06 02:19:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ZCCA.HHZ. 2021-03-06T02:14:32.77 3.0 undecidable manual P 0 0
IV.MSSA.HHZ. 2021-03-06T02:14:30.08 0.3 undecidable manual S 284 37.8288 50 -0.07 73
GU.GRAM.HHZ. 2021-03-06T02:14:27.28 0.3 undecidable manual S 13 29.2485 106 -0.29 71
IV.PLMA.HHZ. 2021-03-06T02:14:25.19 0.1 undecidable manual S 206 22.755 110 -0.24 97
IV.MSSA.HHZ. 2021-03-06T02:14:24.76 0.3 undecidable manual P 284 37.8288 50 0.16 72
GU.EQUI.HHZ. 2021-03-06T02:14:23.07 0.1 undecidable manual S 119 15.7731 118 -0.14 100
GU.GRAM.HHZ. 2021-03-06T02:14:23.24 0.1 undecidable manual P 13 29.2485 106 0.13 98
IV.PLMA.HHZ. 2021-03-06T02:14:22.06 0.1 undecidable manual P 206 22.755 110 0.19 98
GU.EQUI.HHZ. 2021-03-06T02:14:20.79 0.1 undecidable manual P 119 15.7731 118 0.2 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.EQUI.HHE. ML:0.2 0.000015593010000000002 0.1792 AML other m 2021-03-06T02:14:23.30
IV.PLMA.HHE. ML:0.8 0.000041345980000000006 0.0992 AML other m 2021-03-06T02:14:25.54
IV.PLMA.HHN. ML:0.8 0.000041611055 0.1008 AML other m 2021-03-06T02:14:25.43
GU.GRAM.HHE. ML:0.8 0.000034273644 0.2 AML other m 2021-03-06T02:14:28.60
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