Earthquake with magnitude of ML 0.7 on date 09-05-2022 and time 21:55:26 (UTC) in region 3 km NE Forte dei Marmi (LU)

A magnitude ML 0.7 earthquake occured in region: 3 km NE Forte dei Marmi (LU), on

  • 09-05-2022 21:55:26 (UTC)
  • 09-05-2022 23:55:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.9820, 10.1950 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
Seravezza LU 3 13073 13073
Forte dei Marmi LU 3 7510 20583
Pietrasanta LU 4 24007 44590
Montignoso MS 4 10323 54913
Massa MS 8 69479 124392
Stazzema LU 8 3193 127585
Camaiore LU 10 32513 160098
Carrara MS 13 63133 223231
Viareggio LU 13 62467 285698
Vagli Sotto LU 16 939 286637
Ortonovo SP 17 8277 294914
Fabbriche di Vergemoli LU 17 768 295682
Massarosa LU 17 22471 318153
Pescaglia LU 17 3526 321679
Careggine LU 19 564 322243
Castelnuovo Magra SP 19 8415 330658

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km SE of Massa (69479 inhabitants)
13 Km SE of Carrara (63133 inhabitants)
13 Km NW of Viareggio (62467 inhabitants)
29 Km NW of Lucca (89046 inhabitants)
33 Km E of La Spezia (93959 inhabitants)
34 Km NW of Pisa (89158 inhabitants)
49 Km N of Livorno (159219 inhabitants)
58 Km W of Pistoia (90315 inhabitants)
73 Km W of Prato (191150 inhabitants)
83 Km W of Scandicci (50609 inhabitants)
87 Km SW of Reggio nell'Emilia (171345 inhabitants)
88 Km W of Firenze (382808 inhabitants)
92 Km S of Parma (192836 inhabitants)
94 Km SW of Modena (184973 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 2022-05-09
21:55:26
43.9815 10.1952 8 2022-05-09
22:06:48
Sala Sismica INGV-Roma 104418041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-05-09 21:55:26 ± 0.25
Latitude 43.9815 ± 0.0081
Longitude 10.1952 ± 0.0125
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 104418041

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1040
Semi-minor axis of confidence ellipse (meter) 687
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 44
Circular confidence region, given by single value of horizontal uncertainty (meter) 1040.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 214
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.18706
Epicentral distance of station farthest from the epicenter (degree) 0.40829
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 104418041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-05-09 22:06:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.POPM.HHZ. 2022-05-09T21:55:41.61 0.6 undecidable manual S 81 45.3213 50 -0.11 47
IV.BDI.HHZ. 2022-05-09T21:55:38.06 0.6 undecidable manual S 74 33.2445 103 -0.16 48
GU.SARM.EHE. 2022-05-09T21:55:36.41 0.1 undecidable manual S 36 27.8499 105 -0.01 100
GU.POPM.HHZ. 2022-05-09T21:55:35.49 0.6 positive manual P 81 45.3213 50 0.25 46
GU.CARD.HHZ. 2022-05-09T21:55:34.91 0.6 undecidable manual S 78 23.4543 108 -0.05 50
GU.MAIM.HHZ. 2022-05-09T21:55:34.92 0.6 undecidable manual S 108 24.8529 107 -0.51 45
GU.EQUI.HHZ. 2022-05-09T21:55:33.55 0.6 undecidable manual S 351 20.7681 110 -0.53 45
IV.BDI.HHZ. 2022-05-09T21:55:33.31 0.6 negative manual P 74 33.2445 103 0.09 49
IV.PII.HHZ. 2022-05-09T21:55:33.84 0.6 negative manual P 137 39.0276 50 -0.43 45
GU.SARM.EHE. 2022-05-09T21:55:32.49 0.3 undecidable manual P 36 27.8499 105 0.31 70
GU.CARD.HHZ. 2022-05-09T21:55:31.60 0.1 positive manual P 78 23.4543 108 0.26 96
GU.MAIM.HHZ. 2022-05-09T21:55:31.96 0.6 undecidable manual P 108 24.8529 107 0.35 47
GU.EQUI.HHZ. 2022-05-09T21:55:30.91 1.0 negative manual P 351 20.7681 110 0.08 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.CARD.HHN. ML:0.8 0.00004545000000000001 0.14 AML other m 2022-05-09T21:55:35.03
GU.CARD.HHE. ML:0.7 0.0000351 0.52 AML other m 2022-05-09T21:55:35.38
GU.MAIM.HHN. ML:0.7 0.0000303 0.16 AML other m 2022-05-09T21:55:35.77
GU.MAIM.HHE. ML:0.4 0.00001485 0.42 AML other m 2022-05-09T21:55:35.74
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