Earthquake with magnitude of ML 1.1 on date 13-10-2021 and time 13:23:06 (Italy) in region 4 km NW Pievepelago (MO)

A magnitude ML 1.1 earthquake occured in region: 4 km NW Pievepelago (MO), on

  • 13-10-2021 11:23:06 (UTC)
  • 13-10-2021 13:23:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.235, 10.578 at 16 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
Pievepelago MO 4 2222 2222
Riolunato MO 6 712 2934
Frassinoro MO 7 1926 4860
Fiumalbo MO 8 1280 6140
Palagano MO 11 2194 8334
Montecreto MO 12 940 9274
Abetone PT 12 621 9895
Montefiorino MO 15 2203 12098
Lama Mocogno MO 15 2734 14832
Sestola MO 16 2508 17340
Toano RE 16 4463 21803
Castiglione di Garfagnana LU 16 1818 23621
Fosciandora LU 16 602 24223
Villa Collemandina LU 17 1334 25557
Polinago MO 17 1672 27229
Villa Minozzo RE 17 3750 30979
Pieve Fosciana LU 18 2414 33393
Fanano MO 18 2989 36382
Castelnuovo di Garfagnana LU 19 5950 42332
Coreglia Antelminelli LU 19 5215 47547
Barga LU 19 10034 57581
San Romano in Garfagnana LU 20 1410 58991

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km NE of Massa (69479 inhabitants)
42 Km E of Carrara (63133 inhabitants)
43 Km NW of Pistoia (90315 inhabitants)
44 Km N of Lucca (89046 inhabitants)
49 Km NE of Viareggio (62467 inhabitants)
52 Km S of Reggio nell'Emilia (171345 inhabitants)
54 Km SW of Modena (184973 inhabitants)
57 Km NW of Prato (191150 inhabitants)
59 Km N of Pisa (89158 inhabitants)
61 Km E of La Spezia (93959 inhabitants)
66 Km SW of Carpi (70699 inhabitants)
66 Km SE of Parma (192836 inhabitants)
67 Km W of Bologna (386663 inhabitants)
72 Km NW of Scandicci (50609 inhabitants)
75 Km NW of Firenze (382808 inhabitants)
79 Km N of Livorno (159219 inhabitants)
92 Km W of Imola (69797 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.1 2021-10-13
11:23:06
44.2348 10.578 16 2021-10-13
11:30:36
Sala Sismica INGV-Roma 96500281
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-13 11:23:06 ± 0.17
Latitude 44.2348 ± 0.0054
Longitude 10.5780 ± 0.0063
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96500281

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 567
Semi-minor axis of confidence ellipse (meter) 321
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 223
Circular confidence region, given by single value of horizontal uncertainty (meter) 570
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 142
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.31206
Number of stations at which the event was observed 24
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 6
Type of magnitude ML
Reference to an origin 96500281
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-13 11:30:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
OT.OT11.EHZ. 2021-10-13T11:25:01.05 3.0 undecidable manual Sn -1.04 0
OT.OT17.EHZ. 2021-10-13T11:24:56.06 3.0 undecidable manual Sn -3.77 0
IV.GATE.HHZ. 2021-10-13T11:24:50.15 3.0 undecidable manual Sn -6.23 0
IV.LATB.EHZ. 2021-10-13T11:24:41.48 3.0 undecidable manual Sg 6.83 0
IV.SPS2.HHZ. 2021-10-13T11:24:35.97 3.0 undecidable manual Pn -4.21 0
IV.MGR.HHZ. 2021-10-13T11:24:27.56 3.0 undecidable manual Pn 1.68 0
SI.ROSI.HHZ. 2021-10-13T11:24:23.99 3.0 undecidable manual Sg 6.4 0
GU.BURY.HHZ. 2021-10-13T11:24:12.31 3.0 undecidable manual Sg 1.37 0
IV.APRC.HHZ. 2021-10-13T11:24:12.96 3.0 undecidable manual Pn 2.85 0
CH.BERNI.HHZ. 2021-10-13T11:24:07.26 3.0 undecidable manual Sg 2.06 0
SL.LJU.BHZ. 2021-10-13T11:24:06.22 3.0 undecidable manual Pg 12.81 0
ST.CARE.HNZ. 2021-10-13T11:24:02.74 3.0 undecidable manual Sn -1.4 0
IV.RMP.HHZ. 2021-10-13T11:23:54.74 3.0 positive manual Pg 4.67 0
IV.MC2.EHZ. 2021-10-13T11:23:41.86 3.0 positive manual Pn 0.38 0
ST.CARE.HNZ. 2021-10-13T11:23:35.99 3.0 undecidable manual Pn -2.04 0
IV.IMOL.HNZ. 2021-10-13T11:23:31.30 3.0 undecidable manual Sn 0.09 0
IV.RIBO.EHZ.01 2021-10-13T11:23:31.46 3.0 positive manual Pg 2.06 0
IV.SBPO.HNZ. 2021-10-13T11:23:18.02 3.0 positive manual Pn -0.8 0
GU.EQUI.HHZ. 2021-10-13T11:23:17.90 0.6 undecidable manual S 257 0.3121 102 -0.49 45
IV.CAVE.HHZ. 2021-10-13T11:23:16.29 3.0 negative manual P 0.38 0
GU.POPM.HHZ. 2021-10-13T11:23:15.90 0.3 undecidable manual S 146 0.2293 109 -0.11 73
GU.CARD.HHZ. 2021-10-13T11:23:15.71 0.3 undecidable manual S 198 0.2194 110 -0.04 74
IV.BDI.HHZ. 2021-10-13T11:23:14.40 0.1 undecidable manual S 176 0.1727 118 -0.07 100
GU.EQUI.HHZ. 2021-10-13T11:23:13.35 0.6 positive manual P 257 0.3121 102 -0.03 49
GU.SARM.EHZ. 2021-10-13T11:23:13.68 0.1 undecidable manual S 248 0.1367 126 0.1 98
GU.POPM.HHZ. 2021-10-13T11:23:12.20 0.6 undecidable manual P 146 0.2293 109 0.19 48
GU.GSCL.HHZ. 2021-10-13T11:23:12.97 0.1 undecidable manual S 4 0.116 132 -0.13 97
GU.CARD.HHZ. 2021-10-13T11:23:11.86 0.3 undecidable manual P 198 0.2194 110 0 74
IV.BDI.HHZ. 2021-10-13T11:23:11.17 0.3 undecidable manual P 176 0.1727 118 0.05 75
GU.GSCL.HHZ. 2021-10-13T11:23:10.46 0.3 positive manual P 4 0.116 132 0.13 75
GU.SARM.EHZ. 2021-10-13T11:23:10.82 0.1 undecidable manual P 248 0.1367 126 0.22 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GSCL.HHN. ML:0.9 6.06E-5 0.16 AML other m 2021-10-13T11:23:13.05
GU.GSCL.HHE. ML:1 7.97E-5 0.14 AML other m 2021-10-13T11:23:13.10
GU.CARD.HHE. ML:1 5.42E-5 0.58 AML other m 2021-10-13T11:23:16.35
GU.CARD.HHN. ML:1.1 7.07E-5 1.48 AML other m 2021-10-13T11:23:16.06
GU.POPM.HHE. ML:1.4 0.000136 0.2 AML other m 2021-10-13T11:23:16.79
GU.POPM.HHN. ML:1.5 0.000169 0.14 AML other m 2021-10-13T11:23:16.81
IV.CAVE.HHN. ML:3.1 0.001835 1.38 AML other m 2021-10-13T11:23:16.17
IV.CAVE.HHE. ML:3.2 0.002085 0.22 AML other m 2021-10-13T11:23:17.23
IV.IMOL.HNN. ML:3.1 0.001285 0.06 AML other m 2021-10-13T11:23:33.97
IV.IMOL.HNE. ML:3 0.001075 1.26 AML other m 2021-10-13T11:23:36.03
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