Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 04-06-2021 and time 03:52:24 (Italy) in region 2 km SE Bagnone (MS)

A magnitude ML 1.1 earthquake occured in region: 2 km SE Bagnone (MS), on

  • 04-06-2021 01:52:24 (UTC)
  • 04-06-2021 03:52:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.3050, 10.0170 at 10 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
Bagnone MS 2 1887 1887
Licciana Nardi MS 5 4949 6836
Villafranca in Lunigiana MS 5 4770 11606
Filattiera MS 7 2309 13915
Mulazzo MS 9 2424 16339
Tresana MS 9 2044 18383
Comano MS 10 714 19097
Aulla MS 11 11263 30360
Fivizzano MS 11 7925 38285
Podenzana MS 12 2180 40465
Pontremoli MS 13 7357 47822
Monchio delle Corti PR 15 933 48755
Calice al Cornoviglio SP 16 1138 49893
Bolano SP 16 7813 57706
Casola in Lunigiana MS 17 988 58694
Santo Stefano di Magra SP 18 9360 68054
Fosdinovo MS 19 4883 72937
Corniglio PR 20 1936 74873
Follo SP 20 6337 81210

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km N of Carrara (63133 inhabitants)
27 Km NE of La Spezia (93959 inhabitants)
31 Km NW of Massa (69479 inhabitants)
52 Km NW of Viareggio (62467 inhabitants)
61 Km SW of Parma (192836 inhabitants)
64 Km NW of Lucca (89046 inhabitants)
65 Km SW of Reggio nell'Emilia (171345 inhabitants)
72 Km NW of Pisa (89158 inhabitants)
82 Km W of Modena (184973 inhabitants)
83 Km W of Pistoia (90315 inhabitants)
87 Km N of Livorno (159219 inhabitants)
87 Km E of Genova (586655 inhabitants)
87 Km SE of Piacenza (102191 inhabitants)
87 Km SW of Carpi (70699 inhabitants)
92 Km S of Cremona (71901 inhabitants)
98 Km W of Prato (191150 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 1.1 2021-06-04
01:52:24		 44.3053 10.0173 10 2021-06-04
03:06:04		 Sala Sismica INGV-Roma 90775441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-04 01:52:24 ± 0.12
Latitude 44.3053 ± 0.0090
Longitude 10.0173 ± 0.0289
Depth (km) 10 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 90775441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2317
Semi-minor axis of confidence ellipse (meter) 703
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 73
Circular confidence region, given by single value of horizontal uncertainty (meter) 2320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 120
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) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.10252
Epicentral distance of station farthest from the epicenter (degree) 0.68798
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 90775441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-04 03:06:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PII.HHZ. 2021-06-04T01:52:38.06 0.3 undecidable manual P 148 76.368 50 0.21 66
IV.MSSA.HHZ. 2021-06-04T01:52:37.82 0.3 undecidable manual S 272 39.7269 50 -0.06 73
IV.PLMA.HHZ. 2021-06-04T01:52:34.98 0.3 undecidable manual S 205 31.2465 50 -0.63 64
IV.MSSA.HHZ. 2021-06-04T01:52:32.70 0.3 undecidable manual P 272 39.7269 50 0.49 66
GU.EQUI.HHZ. 2021-06-04T01:52:31.55 0.3 undecidable manual S 145 18.87 117 -0.23 73
GU.GRAM.HHZ. 2021-06-04T01:52:31.95 0.3 undecidable manual S 10 20.868 114 -0.46 69
IV.PLMA.HHZ. 2021-06-04T01:52:30.97 0.1 undecidable manual P 205 31.2465 50 0.08 98
GU.GRAM.HHZ. 2021-06-04T01:52:29.15 0.1 undecidable manual P 10 20.868 114 0.1 99
GU.EQUI.HHZ. 2021-06-04T01:52:28.77 0.1 undecidable manual P 145 18.87 117 0.09 100
GU.FIVI.HNE. 2021-06-04T01:52:27.63 0.1 undecidable manual P 130 11.3775 130 0.2 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.EQUI.HHE. ML:0.9 0.00006505 0.34 AML other m 2021-06-04T01:52:31.88
GU.EQUI.HHN. ML:0.6 0.000031899999999999996 0.26 AML other m 2021-06-04T01:52:31.86
GU.GRAM.HHN. ML:1.3 0.000136 0.44 AML other m 2021-06-04T01:52:32.93
GU.GRAM.HHE. ML:1.3 0.0001395 0.24 AML other m 2021-06-04T01:52:35.58
IV.PLMA.HHN. ML:1.0 0.00004685 0.18 AML other m 2021-06-04T01:52:35.61
IV.PLMA.HHE. ML:0.9 0.000039800000000000005 0.62 AML other m 2021-06-04T01:52:35.49
IV.MSSA.HHN. ML:1.4 0.0000967 0.1 AML other m 2021-06-04T01:52:39.33
IV.MSSA.HHE. ML:1.6 0.0001265 0.78 AML other m 2021-06-04T01:52:39.78
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