INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.5 on date 12-10-2018 and time 11:41:34 (Italy) in region 4 km NW Polinago (MO)

A magnitude ML 1.5 earthquake occured in region: 4 km NW Polinago (MO), on

  • 12-10-2018 09:41:34 (UTC)
  • 12-10-2018 11:41:34 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.37, 10.68 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
Polinago MO 4 1672 1672
Montefiorino MO 5 2203 3875
Palagano MO 6 2194 6069
Prignano sulla Secchia MO 7 3747 9816
Lama Mocogno MO 8 2734 12550
Toano RE 10 4463 17013
Serramazzoni MO 10 8282 25295
Frassinoro MO 12 1926 27221
Pavullo nel Frignano MO 13 17383 44604
Montecreto MO 14 940 45544
Baiso RE 15 3315 48859
Riolunato MO 16 712 49571
Carpineti RE 16 4064 53635
Castellarano RE 16 15232 68867
Villa Minozzo RE 17 3750 72617
Sestola MO 17 2508 75125
Pievepelago MO 19 2222 77347

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km SW of Modena (184973 inhabitants)
37 Km S of Reggio nell'Emilia (171345 inhabitants)
49 Km SW of Carpi (70699 inhabitants)
52 Km NW of Pistoia (90315 inhabitants)
54 Km W of Bologna (386663 inhabitants)
56 Km SE of Parma (192836 inhabitants)
57 Km NE of Massa (69479 inhabitants)
57 Km NE of Carrara (63133 inhabitants)
60 Km N of Lucca (89046 inhabitants)
64 Km NW of Prato (191150 inhabitants)
66 Km NE of Viareggio (62467 inhabitants)
74 Km E of La Spezia (93959 inhabitants)
76 Km NE of Pisa (89158 inhabitants)
79 Km NW of Scandicci (50609 inhabitants)
81 Km NW of Firenze (382808 inhabitants)
82 Km W of Imola (69797 inhabitants)
91 Km SW of Ferrara (133155 inhabitants)
96 Km NE of Livorno (159219 inhabitants)
96 Km W of Faenza (58541 inhabitants)
100 Km SE of Cremona (71901 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled 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
Rev 100 ML 1.5 2018-10-12
09:41:34
44.37 10.68 8 2018-10-12
09:47:28
Sala Sismica INGV-Roma 61871581
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-10-12 09:41:34 ± 0.3
Latitude 44.37 ± 0.02
Longitude 10.68 ± 0.02
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 61871581

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2408
Semi-minor axis of confidence ellipse (meter) 610
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 15
Circular confidence region, given by single value of horizontal uncertainty (meter) 2410
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 169
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.52
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.51171
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 61871581
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-10-12 09:47:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.GMB.BHZ. 2018-10-12T09:43:19.12 3.0 negative manual Pn -1.76 0
IV.CAR1.HHZ. 2018-10-12T09:43:15.75 3.0 undecidable manual Pn 5.1 0
IV.FAGN.HHZ. 2018-10-12T09:43:00.27 3.0 undecidable manual Sn 0.89 0
IV.CERT.HHZ. 2018-10-12T09:42:58.96 3.0 undecidable manual Sn 0.13 0
IV.ACER.HHZ. 2018-10-12T09:42:56.25 3.0 undecidable manual Pn 3.49 0
IV.PTRJ.HHZ. 2018-10-12T09:42:51.38 3.0 undecidable manual Pg 14.43 0
IV.MTMR.HNZ. 2018-10-12T09:42:43.50 3.0 undecidable manual Pn -1.29 0
CR.ZAG.BHZ. 2018-10-12T09:42:35.32 3.0 undecidable manual Pn 2.07 0
IV.VIVA.HHZ. 2018-10-12T09:42:26.94 3.0 positive manual Pg 4.77 0
IV.LNSS.HHZ. 2018-10-12T09:42:20.91 3.0 undecidable manual Pg 6.79 0
IV.ARVD.HHZ. 2018-10-12T09:42:10.38 3.0 undecidable manual Pg 5.11 0
IV.PE3.EHZ. 2018-10-12T09:41:59.29 3.0 positive manual Pn -0.78 0
IV.MOCL.EHZ. 2018-10-12T09:41:54.58 0.6 undecidable manual S 135 0.5117 50 1.41 26
GU.GRAM.HHZ. 2018-10-12T09:41:51.82 0.3 undecidable manual S 286 0.456 50 0.3 62
IV.MTCR.EHZ. 2018-10-12T09:41:50.12 0.1 undecidable manual S 146 0.4128 50 -0.11 95
MN.VLC.HHZ. 2018-10-12T09:41:47.71 0.6 undecidable manual S 225 0.2986 104 1 38
IV.ZCCA.HHZ. 2018-10-12T09:41:47.69 3.0 undecidable manual S 95 0.2113 109 4.22 0
IV.BDI.HHZ. 2018-10-12T09:41:47.25 0.3 undecidable manual S 191 0.3139 103 -0.02 72
GU.SARM.EHZ. 2018-10-12T09:41:47.00 0.1 undecidable manual S 227 0.2743 105 1.21 75
GU.POPM.HHZ. 2018-10-12T09:41:47.83 0.1 undecidable manual S 171 0.3301 50 0.04 96
IV.NDIM.HNZ. 2018-10-12T09:41:47.41 3.0 undecidable manual S -0.06 0
IV.MOCL.EHZ. 2018-10-12T09:41:45.42 0.1 undecidable manual P 135 0.5117 50 -0.01 93
IV.MTCR.EHZ. 2018-10-12T09:41:43.39 0.1 undecidable manual P 146 0.4128 50 -0.35 90
MN.VLC.HHZ. 2018-10-12T09:41:41.36 0.1 positive manual P 225 0.2986 104 -0.34 90
IV.BDI.HHZ. 2018-10-12T09:41:41.69 0.1 positive manual P 191 0.3139 103 -0.34 91
GU.POPM.HHZ. 2018-10-12T09:41:41.99 0.1 undecidable manual P 171 0.3301 50 -0.34 91
GU.GRAM.HHZ. 2018-10-12T09:41:40.98 0.1 undecidable manual P 286 0.456 50 -3.5 5
IV.ZCCA.HHZ. 2018-10-12T09:41:40.39 0.1 undecidable manual P 95 0.2113 109 0.56 90
GU.SARM.EHZ. 2018-10-12T09:41:40.85 0.1 positive manual P 227 0.2743 105 -0.32 89
GU.GSCL.HHZ. 2018-10-12T09:41:37.19 0.1 positive manual P 253 0.0701 136 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GSCL.HHE. ML:1.4 0.000418 0.46 AML other m 2018-10-12T09:41:43.30
GU.GSCL.HHN. ML:1.4 0.0004255 0.26 AML other m 2018-10-12T09:41:44.72
GU.SARM.EHE. ML:1.6 0.000191 0.8 AML other m 2018-10-12T09:41:47.01
IV.ZCCA.HHN. ML:1.5 0.00021 0.42 AML other m 2018-10-12T09:41:48.30
MN.VLC.HHE. ML:1.1 5.885E-5 0.94 AML other m 2018-10-12T09:41:48.28
MN.VLC.HHN. ML:1.2 6.265E-5 0.58 AML other m 2018-10-12T09:41:48.14
IV.ZCCA.HHE. ML:1.3 0.0001227 0.42 AML other m 2018-10-12T09:41:48.45
IV.BDI.HHN. ML:1.6 0.000176 0.28 AML other m 2018-10-12T09:41:48.43
IV.BDI.HHE. ML:1.5 0.0001405 0.12 AML other m 2018-10-12T09:41:48.71
GU.SARM.EHN. ML:1.6 0.0002015 0.32 AML other m 2018-10-12T09:41:48.81
GU.POPM.HHE. ML:1.6 0.000153 0.66 AML other m 2018-10-12T09:41:49.61
GU.POPM.HHN. ML:1.6 0.000148 1.34 AML other m 2018-10-12T09:41:50.01
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download