Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 30-09-2022 and time 19:43:41 (Italy) in region 3 km NW Tresana (MS)

A magnitude ML 0.7 earthquake occured in region: 3 km NW Tresana (MS), on

  • 30-09-2022 17:43:41 (UTC)
  • 30-09-2022 19:43:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2640, 9.9420 at 8 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 3 2044 2044
Villafranca in Lunigiana MS 3 4770 6814
Podenzana MS 6 2180 8994
Aulla MS 6 11263 20257
Mulazzo MS 7 2424 22681
Bagnone MS 7 1887 24568
Filattiera MS 8 2309 26877
Licciana Nardi MS 8 4949 31826
Calice al Cornoviglio SP 9 1138 32964
Bolano SP 9 7813 40777
Santo Stefano di Magra SP 11 9360 50137
Follo SP 13 6337 56474
Pontremoli MS 14 7357 63831
Vezzano Ligure SP 14 7356 71187
Rocchetta di Vara SP 15 703 71890
Fivizzano MS 15 7925 79815
Fosdinovo MS 16 4883 84698
Beverino SP 16 2429 87127
Zignago SP 16 532 87659
Comano MS 16 714 88373
Arcola SP 17 10607 98980
Sarzana SP 17 21976 120956
Zeri MS 17 1094 122050
Brugnato SP 17 1270 123320
Borghetto di Vara SP 18 938 124258
Riccò del Golfo di Spezia SP 19 3698 127956
Castelnuovo Magra SP 19 8415 136371
La Spezia SP 20 93959 230330
Pignone SP 20 565 230895
Casola in Lunigiana MS 20 988 231883

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NE of La Spezia (93959 inhabitants)
24 Km NW of Carrara (63133 inhabitants)
30 Km NW of Massa (69479 inhabitants)
51 Km NW of Viareggio (62467 inhabitants)
65 Km NW of Lucca (89046 inhabitants)
67 Km SW of Parma (192836 inhabitants)
71 Km NW of Pisa (89158 inhabitants)
73 Km SW of Reggio nell'Emilia (171345 inhabitants)
82 Km E of Genova (586655 inhabitants)
84 Km NW of Livorno (159219 inhabitants)
86 Km W of Pistoia (90315 inhabitants)
89 Km W of Modena (184973 inhabitants)
90 Km S of Piacenza (102191 inhabitants)
95 Km SW of Carpi (70699 inhabitants)
97 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
Bulletin
Rev1000 		ML 0.7 2022-09-30
17:43:41		 44.264 9.9417 8 2024-03-01
15:28:15		 Bollettino Sismico Italiano INGV 113615931
Reviewed
Rev100 		ML 0.6 2022-09-30
17:43:41		 44.2588 9.9692 11 2022-09-30
18:04:59		 Sala Sismica INGV-Roma 110346451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-09-30 17:43:41 ± 0.06
Latitude 44.2640 ± 0.0036
Longitude 9.9417 ± 0.0038
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 113615931

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 323
Semi-minor axis of confidence ellipse (meter) 173
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 6
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.57647
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 113615931
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-01-17 09:39:10

ML:0.6

Field Value
Value 0.6
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 110346451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-09-30 18:04:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LPEL.HHZ. 2022-09-30T17:45:18.69 3.0 undecidable manual Sn 3.67 0
IV.CDRU.HHZ. 2022-09-30T17:45:11.82 3.0 positive manual Pg 16.030001 0
IX.SRN3.HHZ.02 2022-09-30T17:45:11.11 3.0 positive manual Pg 14.17 0
IV.GRIS.EHZ. 2022-09-30T17:45:09.27 3.0 undecidable manual Pn 1.98 0
IV.CMPR.HHZ. 2022-09-30T17:45:04.32 3.0 undecidable manual Pn 6.82 0
IV.MTCE.HHZ. 2022-09-30T17:44:56.38 3.0 undecidable manual Sn -0.24 0
IV.VVLD.HHZ. 2022-09-30T17:44:29.55 3.0 undecidable manual Pn -0.48 0
IV.RSM2.HHZ. 2022-09-30T17:44:25.94 3.0 undecidable manual Sn -0.22 0
IV.MC2.EHZ. 2022-09-30T17:44:20.31 3.0 undecidable manual Pn 2.69 0
IV.IMOL.HNZ. 2022-09-30T17:44:12.85 3.0 undecidable manual Sn -0.35 0
IV.ATMI.HHZ. 2022-09-30T17:44:12.53 3.0 undecidable manual Pg 5.8 0
IV.SEI.HHZ. 2022-09-30T17:43:55.67 3.0 undecidable manual Pn 1.1 0
IV.MSSA.HHZ. 2022-09-30T17:43:53.60 0.6 undecidable manual S 280 34.1436 102 -0.05 49
GU.GORR.HHN. 2022-09-30T17:43:53.02 0.6 undecidable manual P 307 63.9915 50 -0.23 45
GU.GSCL.HHZ. 2022-09-30T17:43:51.08 1.0 undecidable manual P 79 52.2033 50 -0.36 22
GU.GRAM.HHZ. 2022-09-30T17:43:51.09 0.6 undecidable manual S 21 26.9508 106 -0.13 49
IV.PLMA.HHZ. 2022-09-30T17:43:50.41 0.3 undecidable manual S 196 24.753 107 -0.08 74
IV.ERBM.EHZ. 2022-09-30T17:43:49.68 0.1 undecidable manual P 65 41.1255 50 -0.05 97
GU.SARM.EHZ. 2022-09-30T17:43:49.38 0.6 undecidable manual P 103 37.5291 50 0.2 47
MN.VLC.HNZ. 2022-09-30T17:43:49.34 0.6 undecidable manual P 108 37.2294 101 0.22 47
GU.EQUI.HHZ. 2022-09-30T17:43:48.68 0.6 undecidable manual S 123 19.9689 111 -0.25 48
IV.MSSA.HHZ. 2022-09-30T17:43:48.84 0.6 undecidable manual P 280 34.1436 102 0.32 46
GU.GRAM.HHZ. 2022-09-30T17:43:47.25 0.6 positive manual P 21 26.9508 106 0.13 49
GU.FIVI.HNZ. 2022-09-30T17:43:47.53 0.6 undecidable manual S 100 14.9739 117 0.21 49
IV.PLMA.HHZ. 2022-09-30T17:43:46.70 1.0 undecidable manual P 196 24.753 107 0 25
GU.EQUI.HHZ. 2022-09-30T17:43:45.91 0.3 undecidable manual P 123 19.9689 111 0.12 74
GU.FIVI.HNZ. 2022-09-30T17:43:44.76 0.1 undecidable manual P 100 14.9739 117 -0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.EQUI.HHN. ML:0.3 0.000015768305 0.8832 AML other m 2022-09-30T17:43:49.40
GU.EQUI.HHE. ML:0.6 0.000030886345 1.7792 AML other m 2022-09-30T17:43:48.64
IV.PLMA.HHE. ML:0.8 0.000032681994999999996 0.6528 AML other m 2022-09-30T17:43:50.74
IV.PLMA.HHN. ML:0.9 0.00004790862 3.6864 AML other m 2022-09-30T17:43:49.45
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