Earthquake with magnitude of ML 1.4 on date 08-04-2023 and time 06:16:10 (UTC) in region 3 km W Riolunato (MO)

A magnitude ML 1.4 earthquake occured in region: 3 km W Riolunato (MO), on

  • 08-04-2023 06:16:10 (UTC)
  • 08-04-2023 08:16:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2370, 10.6200 at 9 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Riolunato MO 3 712 712
Pievepelago MO 3 2222 2934
Fiumalbo MO 7 1280 4214
Frassinoro MO 8 1926 6140
Montecreto MO 8 940 7080
Palagano MO 10 2194 9274
Abetone PT 11 621 9895
Lama Mocogno MO 12 2734 12629
Sestola MO 12 2508 15137
Montefiorino MO 14 2203 17340
Fanano MO 14 2989 20329
Polinago MO 15 1672 22001
Toano RE 16 4463 26464
Cutigliano PT 19 1488 27952
Fosciandora LU 19 602 28554
Villa Minozzo RE 19 3750 32304
Castiglione di Garfagnana LU 19 1818 34122
Villa Collemandina LU 20 1334 35456

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km NW of Pistoia (90315 inhabitants)
44 Km NE of Massa (69479 inhabitants)
45 Km N of Lucca (89046 inhabitants)
45 Km E of Carrara (63133 inhabitants)
51 Km NE of Viareggio (62467 inhabitants)
51 Km S of Reggio nell'Emilia (171345 inhabitants)
52 Km SW of Modena (184973 inhabitants)
55 Km NW of Prato (191150 inhabitants)
60 Km NE of Pisa (89158 inhabitants)
64 Km W of Bologna (386663 inhabitants)
64 Km SW of Carpi (70699 inhabitants)
65 Km E of La Spezia (93959 inhabitants)
67 Km SE of Parma (192836 inhabitants)
70 Km NW of Scandicci (50609 inhabitants)
73 Km NW of Firenze (382808 inhabitants)
80 Km NE of Livorno (159219 inhabitants)
88 Km W of Imola (69797 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 1.4 2023-04-08
06:16:10
44.2367 10.6195 9 2024-03-01
17:18:11
Bollettino Sismico Italiano INGV 118339341
Reviewed
Rev100
ML 1.5 2023-04-08
06:16:10
44.242 10.6123 10 2023-04-08
06:24:28
Sala Sismica INGV-Roma 116161401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-08 06:16:10 ± 0.14
Latitude 44.2367 ± 0.0054
Longitude 10.6195 ± 0.0100
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 118339341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 764
Semi-minor axis of confidence ellipse (meter) 309
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 74
Circular confidence region, given by single value of horizontal uncertainty (meter) 760.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 164
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 18
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.47035
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 116161401
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-08 06:24:28

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 118339341
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-06-12 13:32:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAFI.HNZ. 2023-04-08T06:16:36.12 3.0 undecidable manual P 0.07 0
IV.PII.HHZ. 2023-04-08T06:16:31.65 3.0 undecidable manual S 3.08 0
IV.CSNT.HHZ. 2023-04-08T06:16:30.28 3.0 undecidable manual P 0.96 0
GU.GRAM.HHZ. 2023-04-08T06:16:28.38 0.3 undecidable manual S 303 52.2033 50 0.94 53
GU.MAIM.HHZ. 2023-04-08T06:16:23.06 0.6 undecidable manual S 196 37.3293 50 -0.4 44
GU.EQUI.HHZ. 2023-04-08T06:16:22.84 0.6 undecidable manual S 258 37.9287 50 -0.79 39
IV.PII.HHZ. 2023-04-08T06:16:21.23 3.0 negative manual P 0.32 0
GU.GRAM.HHZ. 2023-04-08T06:16:20.76 0.3 undecidable manual P 303 52.2033 50 0.45 64
GU.CARD.HHZ. 2023-04-08T06:16:19.83 0.6 undecidable manual S 205 25.752 109 -0.22 47
GU.POPM.HHZ. 2023-04-08T06:16:19.44 0.1 undecidable manual S 153 23.8539 111 0.01 99
IV.BDI.HHZ. 2023-04-08T06:16:18.08 0.1 undecidable manual S 186 19.3695 115 0.1 98
MN.VLC.HHZ. 2023-04-08T06:16:18.51 0.6 undecidable manual S 245 20.4684 114 0.2 48
GU.SARM.EHZ. 2023-04-08T06:16:17.50 0.1 undecidable manual S 252 18.3705 116 -0.16 97
GU.MAIM.HHZ. 2023-04-08T06:16:17.68 0.1 undecidable manual P 196 37.3293 50 -0.34 90
GU.EQUI.HHZ. 2023-04-08T06:16:17.74 0.3 undecidable manual P 258 37.9287 50 -0.37 67
GU.POPM.HHZ. 2023-04-08T06:16:15.89 0.1 positive manual P 153 23.8539 111 0.2 95
GU.CARD.HHZ. 2023-04-08T06:16:15.98 0.1 undecidable manual P 205 25.752 109 -0.06 97
IV.BDI.HHZ. 2023-04-08T06:16:15.11 0.1 positive manual P 186 19.3695 115 0.26 94
GU.GSCL.HHZ. 2023-04-08T06:16:15.57 0.1 undecidable manual S 349 12.876 125 -0.45 92
MN.VLC.HHZ. 2023-04-08T06:16:15.26 0.1 undecidable manual P 245 20.4684 114 0.22 95
GU.SARM.EHZ. 2023-04-08T06:16:14.86 0.1 positive manual P 252 18.3705 116 0.19 96
GU.GSCL.HHZ. 2023-04-08T06:16:13.69 0.1 positive manual P 349 12.876 125 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GSCL.HHE. ML:1.6 0.0004905 0.2 AML other m 2023-04-08T06:16:15.68
GU.GSCL.HHN. ML:1.6 0.00043 0.22 AML other m 2023-04-08T06:16:15.89
IV.BDI.HNE. ML:1.4 0.00021250000000000002 0.36 AML other m 2023-04-08T06:16:18.13
IV.BDI.HHN. ML:1.6 0.0002855 0.16 AML other m 2023-04-08T06:16:18.38
IV.BDI.HNN. ML:1.6 0.0003415 0.18 AML other m 2023-04-08T06:16:18.39
IV.BDI.HHE. ML:1.5 0.0002395 0.22 AML other m 2023-04-08T06:16:18.41
MN.VLC.HHE. ML:0.9 0.0000653 0.2 AML other m 2023-04-08T06:16:18.78
MN.VLC.HHN. ML:1.0 0.00007489999999999999 1.5 AML other m 2023-04-08T06:16:19.84
GU.POPM.HHN. ML:1.6 0.0002405 0.86 AML other m 2023-04-08T06:16:20.45
GU.POPM.HHE. ML:1.6 0.00025 0.18 AML other m 2023-04-08T06:16:20.25
GU.CARD.HHE. ML:1.3 0.00010499999999999999 0.38 AML other m 2023-04-08T06:16:20.49
GU.CARD.HHN. ML:1.1 0.0000797 0.26 AML other m 2023-04-08T06:16:20.52
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