Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.6 on date 29-09-2018 and time 12:07:55 (UTC) in region 4 km W Linguaglossa (CT)

A magnitude ML 2.6 earthquake occured in region: 4 km W Linguaglossa (CT), on

  • 29-09-2018 12:07:55 (UTC)
  • 29-09-2018 14:07:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.8440, 15.0960 at 1 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.

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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
Linguaglossa CT 4 5403 5403
Castiglione di Sicilia CT 5 3215 8618
Moio Alcantara ME 7 717 9335
Francavilla di Sicilia ME 7 3945 13280
Piedimonte Etneo CT 8 3963 17243
Motta Camastra ME 9 845 18088
Malvagna ME 9 733 18821
Gaggi ME 11 3184 22005
Fiumefreddo di Sicilia CT 11 9623 31628
Sant'Alfio CT 12 1582 33210
Calatabiano CT 12 5308 38518
Roccella Valdemone ME 13 666 39184
Graniti ME 13 1492 40676
Mascali CT 13 14282 54958
Milo CT 13 1087 56045
Randazzo CT 14 10900 66945
Santa Domenica Vittoria ME 14 980 67925
Giarre CT 15 27659 95584
Riposto CT 16 14838 110422
Castelmola ME 16 1088 111510
Giardini-Naxos ME 16 9415 120925
Zafferana Etnea CT 17 9517 130442
Taormina ME 17 10960 141402
Mongiuffi Melia ME 17 600 142002
Fondachelli-Fantina ME 17 1019 143021
Santa Venerina CT 18 8592 151613
Roccafiorita ME 18 197 151810
Gallodoro ME 19 367 152177
Letojanni ME 19 2861 155038
Limina ME 19 836 155874
Novara di Sicilia ME 20 1337 157211
Antillo ME 20 919 158130

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km N of Acireale (52622 inhabitants)
38 Km N of Catania (314555 inhabitants)
56 Km SW of Messina (238439 inhabitants)
56 Km SW of Reggio di Calabria (183035 inhabitants)
89 Km N of Siracusa (122291 inhabitants)
99 Km E of Caltanissetta (63360 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 2.6 2018-09-29
12:07:55		 37.8442 15.096 1 2019-06-04
09:16:16		 Bollettino Sismico Italiano INGV 68351251
Reviewed
Rev200 		ML 2.9 2018-09-29
12:07:00		 37.821 15.072 1 2019-05-08
08:27:57		 Sala Operativa INGV-OE (Catania) 61448631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-09-29 12:07:55 ± 0.2
Latitude 37.8442 ± 0.0117
Longitude 15.0960 ± 0.0182
Depth (km) 1 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 68351251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1710
Semi-minor axis of confidence ellipse (meter) 1130
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 303
Circular confidence region, given by single value of horizontal uncertainty (meter) 1710.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 119
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.48
Epicentral distance of station closest to the epicenter (degree) 0.17897
Epicentral distance of station farthest from the epicenter (degree) 0.53959
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:2.9

Field Value
Value 2.9
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 61448631
Agency INGV
Autore Sala Operativa INGV-OE (Catania)
Time of creation (UTC) 2018-09-29 12:28:19

ML:2.6

Field Value
Value 2.6
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 68351251
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-05-08 08:27:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MSRU.HHE. 2018-09-29T12:08:06.62 0.1 undecidable manual P 38 58.8966 91 -0.32 100
IV.IVPL.HHZ. 2018-09-29T12:08:06.66 0.3 undecidable manual P 350 59.8956 50 -0.47 72
IV.GALF.HHZ. 2018-09-29T12:08:05.38 0.3 undecidable manual P 252 48.7179 91 0.47 74
IV.MPNC.HHN. 2018-09-29T12:08:02.93 0.3 undecidable manual P 34 40.3263 91 -0.3 78
IV.MNO.SHZ. 2018-09-29T12:08:02.65 0.3 undecidable manual P 285 36.4413 91 0.21 80
IV.ESML.HHE. 2018-09-29T12:08:01.86 0.3 undecidable manual P 217 31.4463 91 0.41 77
IV.MUCR.HHZ. 2018-09-29T12:08:01.16 0.3 undecidable manual P 319 29.3484 91 0.13 82
IV.NOV.HHZ. 2018-09-29T12:08:00.03 0.1 undecidable manual P 10 20.6682 92 0.74 93
IV.EPOZ.HHZ. 2018-09-29T12:07:59.71 0.3 undecidable manual P 157 20.7681 92 0.41 79
IV.EPZF.HHZ. 2018-09-29T12:07:58.72 0.3 undecidable manual P 264 21.0678 92 -0.65 73
IV.ESLN.HHZ. 2018-09-29T12:07:58.22 0.3 undecidable manual P 213 19.869 92 -0.9 66
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ESLN.HHN. ML:2.6 0.0035459190000000002 1.344 AML other m 2018-09-29T12:08:04.92
IV.ESLN.HHE. ML:2.5 0.0029044655000000003 0.7232 AML other m 2018-09-29T12:08:03.79
IV.EPZF.HHN. ML:2.4 0.00208569015 0.5184 AML other m 2018-09-29T12:08:06.53
IV.EPZF.HHE. ML:2.6 0.0032895370000000004 0.7424 AML other m 2018-09-29T12:08:06.74
IV.EPOZ.HHE. ML:3.4 0.02146912 0.8576 AML other m 2018-09-29T12:08:09.40
IV.EPOZ.HHN. ML:3.4 0.02113792 0.6592 AML other m 2018-09-29T12:08:08.17
IV.NOV.HHN. ML:2.9 0.0074594825 0.4224 AML other m 2018-09-29T12:08:10.01
IV.NOV.HHE. ML:3.0 0.008182562499999999 0.64 AML other m 2018-09-29T12:08:11.45
IV.MUCR.HHE. ML:2.4 0.0013994594999999998 0.5952 AML other m 2018-09-29T12:08:14.77
IV.MUCR.HHN. ML:2.6 0.002304344 1.2544 AML other m 2018-09-29T12:08:14.69
IV.MNO.SHE. ML:0.0 0.001366974 0.7168 AML other m 2018-09-29T12:08:18.87
IV.MNO.SHN. ML:0.0 0.0029905020000000004 1.4016 AML other m 2018-09-29T12:08:17.99
IV.GALF.HNE. ML:2.1 0.00034925985 0.7296 AML other m 2018-09-29T12:08:28.21
IV.GALF.HHE. ML:2.6 0.0010934382999999998 0.7232 AML other m 2018-09-29T12:08:28.19
IV.GALF.HNN. ML:2.2 0.0003878547 1.12 AML other m 2018-09-29T12:08:27.15
IV.GALF.HHN. ML:2.5 0.0008422515500000001 1.0432 AML other m 2018-09-29T12:08:27.13
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, /tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
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