INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.6 on date 26-04-2018 and time 23:32:16 (Italy) in region 1 km W Montecreto (MO)

A magnitude ML 1.6 earthquake occured in region: 1 km W Montecreto (MO), on

  • 26-04-2018 21:32:16 (UTC)
  • 26-04-2018 23:32:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.25, 10.71 at 57 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
Montecreto MO 1 940 940
Riolunato MO 5 712 1652
Sestola MO 5 2508 4160
Lama Mocogno MO 6 2734 6894
Fanano MO 8 2989 9883
Pievepelago MO 9 2222 12105
Palagano MO 9 2194 14299
Fiumalbo MO 10 1280 15579
Polinago MO 10 1672 17251
Frassinoro MO 12 1926 19177
Abetone PT 13 621 19798
Montefiorino MO 14 2203 22001
Pavullo nel Frignano MO 14 17383 39384
Cutigliano PT 17 1488 40872
Lizzano in Belvedere BO 18 2212 43084
Montese MO 18 3353 46437
Toano RE 18 4463 50900
Gaggio Montano BO 19 4878 55778
Serramazzoni MO 20 8282 64060

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km NW of Pistoia (90315 inhabitants)
47 Km SW of Modena (184973 inhabitants)
48 Km NE of Lucca (89046 inhabitants)
50 Km S of Reggio nell'Emilia (171345 inhabitants)
51 Km E of Massa (69479 inhabitants)
52 Km NW of Prato (191150 inhabitants)
53 Km E of Carrara (63133 inhabitants)
57 Km NE of Viareggio (62467 inhabitants)
57 Km W of Bologna (386663 inhabitants)
61 Km S of Carpi (70699 inhabitants)
65 Km NE of Pisa (89158 inhabitants)
67 Km NW of Scandicci (50609 inhabitants)
68 Km SE of Parma (192836 inhabitants)
69 Km NW of Firenze (382808 inhabitants)
72 Km E of La Spezia (93959 inhabitants)
81 Km W of Imola (69797 inhabitants)
84 Km NE of Livorno (159219 inhabitants)
93 Km W of Faenza (58541 inhabitants)
97 Km SW of Ferrara (133155 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 1.6 2018-04-26
21:32:16
44.25 10.71 57 2018-04-26
21:47:23
Sala Sismica INGV-Roma 56144991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-04-26 21:32:16 ± 0.22
Latitude 44.25 ± 0.01
Longitude 10.71 ± 0.01
Depth (km) 57 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 56144991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 994
Semi-minor axis of confidence ellipse (meter) 643
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 170
Circular confidence region, given by single value of horizontal uncertainty (meter) 990
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 105
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
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) 0.1313
Epicentral distance of station farthest from the epicenter (degree) 0.54769
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 56144991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-04-26 21:47:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PII.HHZ. 2018-04-26T21:32:38.01 0.1 undecidable manual S 194 0.5477 123 -0.61 82
IV.SEI.HHZ. 2018-04-26T21:32:38.26 0.3 undecidable manual S 113 0.5045 126 0.51 64
GU.EQUI.HHZ. 2018-04-26T21:32:36.49 0.1 undecidable manual S 258 0.4101 133 0.49 87
GU.MAIM.HHZ. 2018-04-26T21:32:35.30 0.1 undecidable manual S 205 0.3741 136 -0.09 96
IV.MPPT.EHN. 2018-04-26T21:32:35.69 0.3 undecidable manual S 137 0.4011 134 -0.16 70
IV.FNVD.HHZ. 2018-04-26T21:32:34.24 0.3 undecidable manual S 106 0.3067 143 -0.09 72
GU.CARD.HHZ. 2018-04-26T21:32:34.25 0.1 undecidable manual S 216 0.2806 145 0.28 93
IV.MTCR.EHZ. 2018-04-26T21:32:34.38 0.1 undecidable manual S 137 0.3067 142 0.05 98
GU.SARM.EHZ. 2018-04-26T21:32:33.56 0.1 undecidable manual S 253 0.2338 150 0.19 96
IV.ZCCA.HHZ. 2018-04-26T21:32:33.50 0.3 undecidable manual S 63 0.2122 153 0.37 70
IV.BDI.HHZ. 2018-04-26T21:32:33.03 0.1 undecidable manual S 204 0.2077 153 -0.05 99
GU.GSCL.HHZ. 2018-04-26T21:32:31.87 0.1 undecidable manual S 318 0.1313 163 -0.52 89
IV.PII.HHZ. 2018-04-26T21:32:29.24 0.1 negative manual P 194 0.5477 123 -0.19 90
IV.SEI.HHZ. 2018-04-26T21:32:28.95 0.3 undecidable manual P 113 0.5045 126 0.03 71
GU.EQUI.HHZ. 2018-04-26T21:32:28.48 0.1 undecidable manual P 258 0.4101 133 0.56 85
IV.MTCR.EHZ. 2018-04-26T21:32:27.10 0.1 undecidable manual P 137 0.3067 142 0.15 96
GU.MAIM.HHZ. 2018-04-26T21:32:27.41 0.1 undecidable manual P 205 0.3741 136 -0.16 94
IV.MPPT.EHN. 2018-04-26T21:32:27.94 0.3 undecidable manual P 137 0.4011 134 0.11 71
IV.ZCCA.HHZ. 2018-04-26T21:32:26.15 0.1 positive manual P 63 0.2122 153 -0.11 97
IV.BDI.HHZ. 2018-04-26T21:32:26.23 0.1 positive manual P 204 0.2077 153 0 100
GU.SARM.EHZ. 2018-04-26T21:32:26.54 0.1 undecidable manual P 253 0.2338 150 0.14 97
IV.FNVD.HHZ. 2018-04-26T21:32:26.52 0.3 undecidable manual P 106 0.3067 143 -0.43 67
GU.CARD.HHZ. 2018-04-26T21:32:26.66 0.1 negative manual P 216 0.2806 145 -0.09 97
GU.GSCL.HHZ. 2018-04-26T21:32:25.49 0.1 undecidable manual P 318 0.1313 163 -0.34 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ZCCA.HHN. ML:1.4 5.582873E-5 0.576 AML other m 2018-04-26T21:32:35.03
IV.BDI.HHN. ML:1.6 8.796104E-5 0.2176 AML other m 2018-04-26T21:32:33.40
IV.BDI.HHE. ML:1.7 0.00010711675 0.2048 AML other m 2018-04-26T21:32:33.50
GU.SARM.EHN. ML:1.8 0.00011847936 0.5376 AML other m 2018-04-26T21:32:33.70
GU.SARM.EHE. ML:1.6 8.3342685E-5 0.4352 AML other m 2018-04-26T21:32:34.27
GU.CARD.HHE. ML:1.9 0.00014417215 0.1408 AML other m 2018-04-26T21:32:34.79
IV.MTCR.EHN. ML:1.6 6.4948155E-5 0.256 AML other m 2018-04-26T21:32:35.36
IV.MTCR.EHE. ML:1.6 6.547137E-5 0.256 AML other m 2018-04-26T21:32:35.27
GU.MAIM.HHE. ML:1.4 4.491151E-5 0.1152 AML other m 2018-04-26T21:32:36.52
GU.MAIM.HHN. ML:1.4 3.8803155E-5 0.128 AML other m 2018-04-26T21:32:37.19
IV.SEI.HHN. ML:1.5 4.7181855E-5 0.4608 AML other m 2018-04-26T21:32:40.51
IV.SEI.HHE. ML:1.4 3.3531305E-5 0.4352 AML other m 2018-04-26T21:32:38.48
IV.PII.HHN. ML:1.5 4.0049965E-5 0.1664 AML other m 2018-04-26T21:32:39.42
IV.PII.HHE. ML:1.5 4.596336E-5 0.2176 AML other m 2018-04-26T21:32:38.96
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