Earthquake with magnitude of ML 1.3 on date 23-08-2022 and time 07:46:37 (Italy) in region 3 km W Piazza al Serchio (LU)

A magnitude ML 1.3 earthquake occured in region: 3 km W Piazza al Serchio (LU), on

  • 23-08-2022 05:46:37 (UTC)
  • 23-08-2022 07:46:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1950, 10.2600 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Piazza al Serchio LU 4 2367 2367
Sillano Giuncugnano LU 5 1085 3452
Minucciano LU 5 2102 5554
Casola in Lunigiana MS 7 988 6542
Camporgiano LU 7 2176 8718
San Romano in Garfagnana LU 7 1410 10128
Vagli Sotto LU 9 939 11067
Careggine LU 10 564 11631
Villa Collemandina LU 12 1334 12965
Fivizzano MS 12 7925 20890
Castiglione di Garfagnana LU 13 1818 22708
Pieve Fosciana LU 14 2414 25122
Comano MS 15 714 25836
Castelnuovo di Garfagnana LU 15 5950 31786
Fosciandora LU 18 602 32388
Carrara MS 18 63133 95521
Molazzana LU 19 1043 96564
Fabbriche di Vergemoli LU 19 768 97332
Licciana Nardi MS 19 4949 102281
Massa MS 20 69479 171760

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NE of Carrara (63133 inhabitants)
20 Km NE of Massa (69479 inhabitants)
36 Km E of La Spezia (93959 inhabitants)
36 Km N of Viareggio (62467 inhabitants)
43 Km NW of Lucca (89046 inhabitants)
54 Km N of Pisa (89158 inhabitants)
60 Km W of Pistoia (90315 inhabitants)
63 Km SW of Reggio nell'Emilia (171345 inhabitants)
68 Km S of Parma (192836 inhabitants)
71 Km N of Livorno (159219 inhabitants)
73 Km SW of Modena (184973 inhabitants)
76 Km W of Prato (191150 inhabitants)
82 Km SW of Carpi (70699 inhabitants)
88 Km NW of Scandicci (50609 inhabitants)
92 Km W of Bologna (386663 inhabitants)
93 Km NW of Firenze (382808 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 1.3 2022-08-23
05:46:37
44.1948 10.2602 10 2022-08-23
05:53:39
Sala Sismica INGV-Roma 108845051
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-08-23 05:46:37 ± 0.1
Latitude 44.1948 ± 0.0090
Longitude 10.2602 ± 0.0088
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 108845051

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1085
Semi-minor axis of confidence ellipse (meter) 437
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 203
Circular confidence region, given by single value of horizontal uncertainty (meter) 1080.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.38671
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 108845051
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-08-23 05:53:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SBPO.HNZ. 2022-08-23T05:46:54.33 3.0 negative manual P -0.03 0
GU.GRAM.HHZ. 2022-08-23T05:46:49.71 0.3 undecidable manual S 335 36.2415 50 -0.01 72
IV.BDI.HHZ. 2022-08-23T05:46:47.95 0.3 undecidable manual S 119 30.4473 50 -0.23 69
GU.CARD.HHZ. 2022-08-23T05:46:46.55 0.1 undecidable manual S 137 25.752 111 -0.26 92
GU.POPM.HHZ. 2022-08-23T05:46:45.62 0.1 undecidable manual P 113 42.9237 50 0.13 92
GU.GRAM.HHZ. 2022-08-23T05:46:44.57 0.1 undecidable manual P 335 36.2415 50 0.11 94
IV.PLMA.HHZ. 2022-08-23T05:46:44.57 0.1 undecidable manual P 244 36.1416 50 0.12 93
IV.BDI.HHZ. 2022-08-23T05:46:43.76 0.1 undecidable manual P 119 30.4473 50 0.19 93
GU.GSCL.HHZ. 2022-08-23T05:46:42.94 0.3 undecidable manual P 56 31.2465 50 -0.75 59
MN.VLC.HHZ. 2022-08-23T05:46:42.30 0.1 undecidable manual S 111 10.7781 132 0.01 100
GU.CARD.HHZ. 2022-08-23T05:46:42.96 0.1 undecidable manual P 137 25.752 111 0.18 94
GU.EQUI.HHZ. 2022-08-23T05:46:41.56 0.1 undecidable manual S 249 9.0798 137 -0.32 94
GU.EQUI.HHZ. 2022-08-23T05:46:40.03 0.1 undecidable manual P 249 9.0798 137 0.1 98
MN.VLC.HHZ. 2022-08-23T05:46:40.57 0.1 undecidable manual P 111 10.7781 132 0.4 92
GU.MAIM.HHZ. 2022-08-23T05:46:36.99 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.EQUI.HHE. ML:1.2 0.0002395 0.32 AML other m 2022-08-23T05:46:41.56
GU.EQUI.HHN. ML:1.3 0.000264 0.34 AML other m 2022-08-23T05:46:41.70
MN.VLC.HHN. ML:1.0 0.0001225 0.38 AML other m 2022-08-23T05:46:42.64
MN.VLC.HHE. ML:0.8 0.00007235 0.1 AML other m 2022-08-23T05:46:42.86
GU.CARD.HHE. ML:1.2 0.00009070000000000001 0.1 AML other m 2022-08-23T05:46:47.04
GU.CARD.HHN. ML:1.2 0.0000934 1.18 AML other m 2022-08-23T05:46:47.17
IV.BDI.HHE. ML:1.1 0.0000554 0.62 AML other m 2022-08-23T05:46:48.78
IV.BDI.HHN. ML:1.1 0.00006309999999999999 0.24 AML other m 2022-08-23T05:46:48.56
GU.GSCL.HHE. ML:1.4 0.000124 0.18 AML other m 2022-08-23T05:46:49.51
GU.GSCL.HHN. ML:1.5 0.0001555 0.16 AML other m 2022-08-23T05:46:49.48
GU.GRAM.HHN. ML:1.9 0.00028000000000000003 0.3 AML other m 2022-08-23T05:46:50.78
GU.GRAM.HHE. ML:1.9 0.000312 0.28 AML other m 2022-08-23T05:46:50.95
GU.POPM.HHE. ML:1.2 0.000057050000000000004 0.12 AML other m 2022-08-23T05:46:52.61
GU.POPM.HHN. ML:1.2 0.00005714999999999999 0.72 AML other m 2022-08-23T05:46:53.55
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