Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 11-09-2023 and time 17:34:32 (UTC) in region 7 km S Pavullo nel Frignano (MO)

A magnitude ML 2.1 earthquake occured in region: 7 km S Pavullo nel Frignano (MO), on

  • 11-09-2023 17:34:32 (UTC)
  • 11-09-2023 19:34:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2820, 10.8240 at 9 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Pavullo nel Frignano MO 7 17383 17383
Sestola MO 7 2508 19891
Lama Mocogno MO 8 2734 22625
Fanano MO 8 2989 25614
Montecreto MO 9 940 26554
Montese MO 10 3353 29907
Polinago MO 11 1672 31579
Gaggio Montano BO 13 4878 36457
Castel d'Aiano BO 14 1906 38363
Lizzano in Belvedere BO 14 2212 40575
Palagano MO 15 2194 42769
Riolunato MO 15 712 43481
Zocca MO 16 4719 48200
Serramazzoni MO 16 8282 56482
Fiumalbo MO 18 1280 57762
Montefiorino MO 18 2203 59965
Pievepelago MO 18 2222 62187
Alto Reno Terme BO 19 6960 69147
Guiglia MO 20 3931 73078
Abetone PT 20 621 73699
Frassinoro MO 20 1926 75625

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km N of Pistoia (90315 inhabitants)
41 Km S of Modena (184973 inhabitants)
48 Km W of Bologna (386663 inhabitants)
49 Km SE of Reggio nell'Emilia (171345 inhabitants)
50 Km NW of Prato (191150 inhabitants)
55 Km NE of Lucca (89046 inhabitants)
56 Km S of Carpi (70699 inhabitants)
61 Km E of Massa (69479 inhabitants)
62 Km E of Carrara (63133 inhabitants)
65 Km NW of Scandicci (50609 inhabitants)
65 Km NE of Viareggio (62467 inhabitants)
67 Km NW of Firenze (382808 inhabitants)
70 Km SE of Parma (192836 inhabitants)
71 Km NE of Pisa (89158 inhabitants)
71 Km W of Imola (69797 inhabitants)
82 Km E of La Spezia (93959 inhabitants)
84 Km W of Faenza (58541 inhabitants)
88 Km SW of Ferrara (133155 inhabitants)
91 Km NE of Livorno (159219 inhabitants)
97 Km W of Forlì (117913 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 2.1 2023-09-11
17:34:32		 44.2817 10.8238 9 2023-09-11
17:46:30		 Sala Sismica INGV-Roma 120982561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-11 17:34:32 ± 0.09
Latitude 44.2817 ± 0.0054
Longitude 10.8238 ± 0.0063
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 120982561

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 507
Semi-minor axis of confidence ellipse (meter) 396
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 24
Circular confidence region, given by single value of horizontal uncertainty (meter) 510.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 60
Number of associated phases, regardless of their use for origin computation 47
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.67903
Number of stations at which the event was observed 37
Number of stations from which data was used for origin computation 26
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 56
Type of magnitude ML
Reference to an origin 120982561
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-09-11 17:46:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.TRAV.HHZ. 2023-09-11T17:35:48.60 3.0 undecidable manual Sn 3.9 0
IV.CIGN.HHZ. 2023-09-11T17:35:41.77 3.0 undecidable manual Pg 8.8 0
GU.TRAV.HHZ. 2023-09-11T17:35:22.44 3.0 undecidable manual Pg 9.6 0
IV.CSP1.EHZ. 2023-09-11T17:35:11.60 3.0 undecidable manual Pg 4.52 0
GU.IMI.HHZ. 2023-09-11T17:35:07.64 3.0 undecidable manual Pn -0.1 0
GU.CANO.HHZ. 2023-09-11T17:35:04.11 3.0 undecidable manual Pn 0.25 0
IV.FRON.EHZ. 2023-09-11T17:35:04.00 3.0 undecidable manual Pg 4.11 0
SI.LUSI.HHZ. 2023-09-11T17:35:03.11 0.6 undecidable manual P 3 186.369 38 0.79 27
ST.VARA.EHZ. 2023-09-11T17:35:00.93 0.3 undecidable manual P 2 171.3951 50 0.64 46
IV.MAGA.HHZ. 2023-09-11T17:34:59.83 1.0 undecidable manual P 355 166.4112 50 0.31 17
GU.GORR.HHZ. 2023-09-11T17:34:57.33 3.0 negative manual P 3.26 0
IV.ROVR.HHZ. 2023-09-11T17:34:56.85 0.6 undecidable manual P 7 152.736 50 -0.55 35
IV.CSNT.HHZ. 2023-09-11T17:34:51.20 3.0 negative manual P 1.8 0
IV.OSSC.HHZ. 2023-09-11T17:34:50.21 3.0 undecidable manual P 1.9 0
IV.SFI.EHZ. 2023-09-11T17:34:49.34 3.0 positive manual P 0.74 0
IV.PLMA.HHZ. 2023-09-11T17:34:46.69 0.3 undecidable manual P 252 81.3519 50 0.28 65
IV.MPPT.EHZ. 2023-09-11T17:34:46.27 0.3 undecidable manual S 149 41.7249 50 0.03 74
GU.CARD.HHZ. 2023-09-11T17:34:46.19 0.6 undecidable manual S 224 39.3273 50 0.61 43
MN.VLC.HHZ. 2023-09-11T17:34:45.54 0.6 undecidable manual S 249 37.3293 50 0.48 45
IV.RUFI.EHZ. 2023-09-11T17:34:45.86 0.6 undecidable manual P 132 73.5708 50 0.65 40
GU.SARM.EHE. 2023-09-11T17:34:44.48 0.6 undecidable manual S 252 35.3424 50 -0.04 50
GU.GRAM.HHZ. 2023-09-11T17:34:44.12 0.6 undecidable manual P 291 64.491 50 0.31 44
IV.PII.HHZ. 2023-09-11T17:34:44.12 3.0 positive manual P -0.15 0
IV.PSL.EHZ. 2023-09-11T17:34:43.46 0.3 undecidable manual S 165 31.3464 50 -0.01 75
IV.CRMI.HHZ. 2023-09-11T17:34:42.32 0.1 undecidable manual P 167 55.3002 50 -0.08 95
IV.MTRZ.HHZ. 2023-09-11T17:34:42.09 0.3 undecidable manual P 86 47.8188 50 0.85 57
IV.FNVD.HHZ. 2023-09-11T17:34:42.06 0.3 undecidable manual S 118 26.9508 109 -0.01 76
IV.BOSL.HHZ. 2023-09-11T17:34:42.79 0.6 positive manual P 131 58.5969 50 -0.12 47
GU.POPM.HHN. 2023-09-11T17:34:42.59 0.3 undecidable manual S 192 26.751 109 0.57 67
GU.MAIM.HHZ. 2023-09-11T17:34:41.23 0.1 positive manual P 213 48.7179 50 -0.15 95
IV.VISG.HHZ. 2023-09-11T17:34:41.08 0.3 undecidable manual P 102 49.617 50 -0.44 67
GU.EQUI.HHZ. 2023-09-11T17:34:41.88 0.3 undecidable manual P 257 54.9006 50 -0.45 66
IV.MPPT.EHZ. 2023-09-11T17:34:40.09 0.1 positive manual P 149 41.7249 50 -0.22 95
IV.SEI.HHZ. 2023-09-11T17:34:40.94 0.3 undecidable manual P 120 49.4172 50 -0.55 64
IV.MOCL.EHZ. 2023-09-11T17:34:39.99 0.1 positive manual P 137 41.8248 50 -0.33 92
GU.GSCL.HHZ. 2023-09-11T17:34:39.60 0.3 undecidable manual S 292 20.2686 114 -0.3 72
GU.SARM.EHE. 2023-09-11T17:34:39.21 0.3 undecidable manual P 252 35.3424 50 -0.11 73
MN.VLC.HHZ. 2023-09-11T17:34:39.62 0.3 undecidable manual P 249 37.3293 50 0 75
IV.ERBM.EHE. 2023-09-11T17:34:39.28 0.3 undecidable manual P 295 36.0417 50 -0.14 73
GU.CARD.HHZ. 2023-09-11T17:34:39.95 0.3 undecidable manual P 224 39.3273 50 0.02 74
IV.ZCCA.HHZ. 2023-09-11T17:34:38.89 0.3 undecidable manual S 58 14.3745 122 0.79 62
GU.POPM.HHN. 2023-09-11T17:34:38.08 0.3 undecidable manual P 192 26.751 109 0.2 73
IV.PSL.EHZ. 2023-09-11T17:34:38.69 0.3 undecidable manual P 165 31.3464 50 -0.02 75
IV.FNVD.HHZ. 2023-09-11T17:34:37.34 0.3 undecidable manual P 118 26.9508 109 -0.56 67
IV.PDN10.EHZ. 2023-09-11T17:34:37.06 0.3 undecidable manual P 100
GU.GSCL.HHZ. 2023-09-11T17:34:36.32 0.3 positive manual P 292 20.2686 114 -0.33 72
IV.ZCCA.HHZ. 2023-09-11T17:34:35.43 0.1 positive manual P 58 14.3745 122 -0.18 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ZCCA.HNE. ML:2.1 0.001415 0.7 AML other m 2023-09-11T17:34:39.52
IV.ZCCA.HHE. ML:2.1 0.0014 0.7 AML other m 2023-09-11T17:34:39.17
IV.ZCCA.HNN. ML:2.4 0.002475 0.52 AML other m 2023-09-11T17:34:39.57
IV.ZCCA.HHN. ML:2.4 0.002625 0.72 AML other m 2023-09-11T17:34:39.57
IV.FNVD.HHE. ML:2.4 0.001324 0.38 AML other m 2023-09-11T17:34:42.78
IV.FNVD.HHN. ML:1.7 0.00026900000000000003 0.78 AML other m 2023-09-11T17:34:43.40
IV.PSL.EHE. ML:2.0 0.00043149999999999997 0.3 AML other m 2023-09-11T17:34:43.58
GU.GSCL.HHE. ML:1.8 0.0004395 1.02 AML other m 2023-09-11T17:34:44.55
IV.PSL.EHN. ML:2.1 0.000561 0.42 AML other m 2023-09-11T17:34:44.61
MN.VLC.HNN. ML:2.0 0.00039 0.42 AML other m 2023-09-11T17:34:46.39
GU.CARD.HHE. ML:2.5 0.001085 0.32 AML other m 2023-09-11T17:34:46.53
MN.VLC.HNE. ML:2.2 0.0005794999999999999 0.6 AML other m 2023-09-11T17:34:46.60
MN.VLC.HHE. ML:2.2 0.0006035 0.6 AML other m 2023-09-11T17:34:46.90
MN.VLC.HHN. ML:2.0 0.00038500000000000003 1.14 AML other m 2023-09-11T17:34:46.96
GU.CARD.HHN. ML:2.5 0.0011949999999999999 0.48 AML other m 2023-09-11T17:34:47.00
IV.MPPT.EHE. ML:2.1 0.00039400000000000004 0.88 AML other m 2023-09-11T17:34:47.16
IV.MOCL.EHN. ML:1.9 0.00027 0.74 AML other m 2023-09-11T17:34:47.73
IV.MPPT.EHN. ML:2.2 0.000497 1.54 AML other m 2023-09-11T17:34:47.22
IV.MOCL.EHE. ML:2.0 0.0003585 0.74 AML other m 2023-09-11T17:34:48.56
GU.GSCL.HHN. ML:1.8 0.0004985 1.36 AML other m 2023-09-11T17:34:48.95
GU.MAIM.HHE. ML:1.8 0.000153 1.24 AML other m 2023-09-11T17:34:49.35
IV.SEI.HHN. ML:2.4 0.000624 0.32 AML other m 2023-09-11T17:34:50.13
IV.VISG.HHN. ML:1.4 0.0000664 0.54 AML other m 2023-09-11T17:34:50.15
IV.SEI.HHE. ML:2.2 0.000395 0.36 AML other m 2023-09-11T17:34:51.28
IV.CRMI.HHN. ML:1.6 0.0000945 0.3 AML other m 2023-09-11T17:34:51.46
GU.EQUI.HHE. ML:1.5 0.00007145 1.62 AML other m 2023-09-11T17:34:51.87
GU.MAIM.HHN. ML:1.8 0.0001885 1.04 AML other m 2023-09-11T17:34:52.11
IV.VISG.HHE. ML:1.3 0.00004905 0.5 AML other m 2023-09-11T17:34:52.53
GU.EQUI.HHN. ML:1.7 0.000111 0.7 AML other m 2023-09-11T17:34:53.07
IV.CRMI.HHE. ML:1.6 0.00008915000000000001 0.34 AML other m 2023-09-11T17:34:53.49
GU.GRAM.HHN. ML:2.2 0.000308 1.56 AML other m 2023-09-11T17:34:55.13
IV.PII.HHE. ML:2.4 0.00042249999999999997 1.7 AML other m 2023-09-11T17:34:55.14
IV.BOSL.HHN. ML:1.4 0.0000582 0.4 AML other m 2023-09-11T17:34:55.40
IV.MTRZ.HHE. ML:1.9 0.000238 0.38 AML other m 2023-09-11T17:34:55.48
IV.BOSL.HHE. ML:1.6 0.00007764999999999999 0.48 AML other m 2023-09-11T17:34:55.53
GU.GRAM.HHE. ML:2.3 0.00035499999999999996 0.24 AML other m 2023-09-11T17:34:55.72
IV.PII.HHN. ML:2.2 0.0003055 1.22 AML other m 2023-09-11T17:34:56.63
IV.MTRZ.HHN. ML:1.9 0.0002035 0.42 AML other m 2023-09-11T17:34:57.75
IV.PLMA.HHE. ML:1.7 0.00006950000000000001 0.48 AML other m 2023-09-11T17:34:57.74
IV.PLMA.HHN. ML:1.8 0.00008225000000000001 0.64 AML other m 2023-09-11T17:35:00.75
IV.OSSC.HHN. ML:1.9 0.0000893 1.42 AML other m 2023-09-11T17:35:02.71
IV.CSNT.HHE. ML:1.6 0.0000453 0.94 AML other m 2023-09-11T17:35:03.81
IV.OSSC.HHE. ML:1.9 0.00009185 0.92 AML other m 2023-09-11T17:35:04.06
IV.CSNT.HHN. ML:1.9 0.00008395 1.4 AML other m 2023-09-11T17:35:05.79
GU.IMI.HHN. ML:2.7 0.0001048 1.26 AML other m 2023-09-11T17:35:12.69
GU.IMI.HHE. ML:2.6 0.00007465 0.26 AML other m 2023-09-11T17:35:12.94
IV.ROVR.HHE. ML:2.0 0.00005629999999999999 0.38 AML other m 2023-09-11T17:35:22.41
IV.ROVR.HHN. ML:2.4 0.0001215 0.26 AML other m 2023-09-11T17:35:23.62
IV.MAGA.HHN. ML:2.4 0.00009964999999999998 1.04 AML other m 2023-09-11T17:35:24.54
IV.MAGA.HHE. ML:2.5 0.000142 1.48 AML other m 2023-09-11T17:35:24.79
ST.VARA.EHE. ML:2.5 0.000129 0.22 AML other m 2023-09-11T17:35:24.83
SI.LUSI.HHN. ML:2.6 0.000128 1.1 AML other m 2023-09-11T17:35:28.83
SI.LUSI.HHE. ML:2.3 0.0000688 1.52 AML other m 2023-09-11T17:35:28.08
GU.CANO.HHN. ML:2.1 0.000035699999999999994 0.26 AML other m 2023-09-11T17:35:34.46
ST.VARA.EHN. ML:2.3 0.00008715 0.76 AML other m 2023-09-11T17:35:35.38
GU.CANO.HHE. ML:2.2 0.00004910000000000001 0.5 AML other m 2023-09-11T17:35:35.68
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
Waveforms Seismic signals in miniseed + resp format Download