INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 2.2 on date 09-10-2018 and time 07:24:49 (Italy) in region 9 km N Ragalna (CT)

A magnitude ML 2.2 earthquake occured in region: 9 km N Ragalna (CT), on

  • 09-10-2018 05:24:49 (UTC)
  • 09-10-2018 07:24:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.71, 14.94 at 25 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
Ragalna CT 9 3924 3924
Biancavilla CT 10 24007 27931
Adrano CT 11 36122 64053
Santa Maria di Licodia CT 12 7641 71694
Bronte CT 13 19172 90866
Nicolosi CT 13 7463 98329
Belpasso CT 14 28108 126437
Zafferana Etnea CT 14 9517 135954
Maletto CT 15 3920 139874
Pedara CT 15 14102 153976
Paternò CT 15 48228 202204
Milo CT 15 1087 203291
Trecastagni CT 16 10910 214201
Camporotondo Etneo CT 17 5023 219224
San Pietro Clarenza CT 17 7743 226967
Santa Venerina CT 18 8592 235559
Viagrande CT 18 8563 244122
Sant'Alfio CT 18 1582 245704
Mascalucia CT 18 31958 277662
Randazzo CT 19 10900 288562
Tremestieri Etneo CT 19 20589 309151
Aci Bonaccorsi CT 19 3524 312675
Gravina di Catania CT 20 25838 338513

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NW of Acireale (52622 inhabitants)
27 Km NW of Catania (314555 inhabitants)
76 Km SW of Reggio di Calabria (183035 inhabitants)
76 Km SW of Messina (238439 inhabitants)
79 Km NW of Siracusa (122291 inhabitants)
81 Km E of Caltanissetta (63360 inhabitants)
89 Km N of Ragusa (73313 inhabitants)
92 Km NE of Vittoria (63339 inhabitants)
94 Km NE of Gela (75827 inhabitants)
96 Km N of Modica (54633 inhabitants)
Recent and historical Seismicity

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the last three days (72 hours)

Earthquakes of the last three days (72 hours)

This map reports the earthquake epicenters located in the past 72 hours (3 days) from the time this page has been generated. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the last 90 days

Earthquakes of the last 90 days

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1985

Earthquakes since 1985

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2014

Earthquakes since 1000 AD until 2014

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows 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
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 2.2 2018-10-09
05:24:49
37.71 14.94 25 2018-10-09
05:32:40
Sala Sismica INGV-Roma 61759431
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-10-09 05:24:49 ± 0.18
Latitude 37.71 ± 0.01
Longitude 14.94 ± 0.01
Depth (km) 25 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 61759431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1033
Semi-minor axis of confidence ellipse (meter) 788
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 320
Circular confidence region, given by single value of horizontal uncertainty (meter) 1030
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 106
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.16102
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 20
Magnitude information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 42
Type of magnitude ML
Reference to an origin 61759431
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-10-09 05:32:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PANTE.HHZ. 2018-10-09T05:26:01.85 3.0 undecidable manual Sg 2.3 0
IV.CPOZ.HHZ. 2018-10-09T05:25:41.71 3.0 undecidable manual Pn 3.57 0
MN.CUC.HHZ. 2018-10-09T05:25:27.81 3.0 positive manual Pn 0.53 0
IV.CET2.HHZ. 2018-10-09T05:25:22.33 3.0 negative manual Pn 0.52 0
IV.PLAC.HHZ. 2018-10-09T05:25:15.84 3.0 negative manual P 2.2 0
IV.HMDC.HHZ. 2018-10-09T05:25:15.51 3.0 undecidable manual S -0.61 0
IV.RAFF.HHZ. 2018-10-09T05:25:12.87 3.0 undecidable manual S -0.44 0
IV.JOPP.HHZ. 2018-10-09T05:25:10.85 0.3 undecidable manual P 39 1.161 54 -0.39 77
IV.SSY.HHZ. 2018-10-09T05:25:09.93 3.0 undecidable manual S 0.25 0
IV.SOI.EHZ. 2018-10-09T05:25:08.03 0.3 undecidable manual P 67 0.9488 99 0.36 82
IV.CLTA.HHZ. 2018-10-09T05:25:08.24 3.0 negative manual P 0.9 0
MN.CEL.HHZ. 2018-10-09T05:25:07.64 0.6 undecidable manual P 54 0.9281 99 0.31 55
IV.HPAC.HHZ. 2018-10-09T05:25:07.91 3.0 positive manual P 0.01 0
IV.IACL.HHZ. 2018-10-09T05:25:06.98 0.6 undecidable manual P 331 0.9407 99 -0.56 52
IV.GMB.BHN. 2018-10-09T05:25:06.39 0.6 undecidable manual P 57 0.8346 100 0.65 51
IV.PETRA.HHZ. 2018-10-09T05:25:05.66 3.0 undecidable manual P 0
IV.CSLB.HHZ. 2018-10-09T05:25:04.66 0.6 undecidable manual P 288 0.7329 102 0.62 52
IV.MUCR.HHZ. 2018-10-09T05:25:03.37 0.3 undecidable manual S 351 0.3345 118 0.17 96
IV.HMDC.HHZ. 2018-10-09T05:25:03.69 3.0 positive manual P -0.74 0
IV.MTTG.HHZ. 2018-10-09T05:25:03.22 0.3 undecidable manual P 64 0.6646 103 0.32 88
IV.PLLN.EHZ. 2018-10-09T05:25:03.62 0.6 undecidable manual P 294 0.6898 102 0.31 57
IV.IVPL.HHZ. 2018-10-09T05:25:03.18 0.6 undecidable manual P 3 0.6637 103 0.29 58
IV.RAFF.HHZ. 2018-10-09T05:25:02.48 3.0 negative manual P -0.37 0
IV.GALF.HHZ. 2018-10-09T05:25:02.69 0.6 undecidable manual S 270 0.2968 121 0.46 60
IV.MNO.SHZ. 2018-10-09T05:25:02.30 0.6 undecidable manual S 318 0.2923 122 0.18 64
IV.MILZ.HHZ. 2018-10-09T05:25:01.86 0.3 undecidable manual P 22 0.6034 104 -0.01 93
IV.SSY.HHZ. 2018-10-09T05:25:00.74 3.0 positive manual P -0.07 0
IV.MPNC.HHZ. 2018-10-09T05:25:00.90 0.6 undecidable manual P 37 0.5414 106 0.05 63
IV.EPZF.HHZ. 2018-10-09T05:24:59.19 0.3 undecidable manual S 329 0.1295 147 0.58 91
IV.ESML.HHZ. 2018-10-09T05:24:58.47 0.3 undecidable manual S 208 0.107 152 0.22 100
IV.CAGR.HHZ. 2018-10-09T05:24:58.49 0.3 undecidable manual P 256 0.3615 116 0.52 87
IV.HAGA.HHZ. 2018-10-09T05:24:58.97 3.0 positive manual P 0.02 0
IV.MUCR.HHZ. 2018-10-09T05:24:57.10 0.3 undecidable manual P 351 0.3345 118 -0.46 90
IV.NOV.HHZ. 2018-10-09T05:24:57.82 0.3 undecidable manual P 26 0.3507 116 0.01 99
IV.MNO.SHZ. 2018-10-09T05:24:56.35 0.3 undecidable manual P 318 0.2923 122 -0.59 87
IV.GALF.HHZ. 2018-10-09T05:24:56.34 0.3 undecidable manual P 270 0.2968 121 -0.66 86
IV.EPOZ.HHZ. 2018-10-09T05:24:55.95 0.6 undecidable manual P 102 0.1996 134 0.28 65
IV.EMCN.HNZ. 2018-10-09T05:24:54.33 0.6 undecidable manual P 43 0.107 152 -0.38 63
IV.EPZF.HHZ. 2018-10-09T05:24:54.21 0.3 undecidable manual P 329 0.1295 147 -0.7 86
IV.ESML.HHZ. 2018-10-09T05:24:53.88 0.3 undecidable manual P 208 0.107 152 -0.83 82
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ESML.HHN. ML:2.5 0.001905 0.86 AML other m 2018-10-09T05:24:58.60
IV.ESML.HHE. ML:2.7 0.00271 0.68 AML other m 2018-10-09T05:24:58.63
IV.EPZF.HHE. ML:3.1 0.006555 0.42 AML other m 2018-10-09T05:24:59.36
IV.EPZF.HHN. ML:2.7 0.002795 0.3 AML other m 2018-10-09T05:24:59.64
IV.GALF.HNE. ML:2 0.000386 1.12 AML other m 2018-10-09T05:25:02.91
IV.MNO.SHE. ML:0 0.0006515 1.24 AML other m 2018-10-09T05:25:03.14
IV.MNO.SHN. ML:0 0.000644 1.44 AML other m 2018-10-09T05:25:04.80
IV.GALF.HHN. ML:2.4 0.000934 1.6 AML other m 2018-10-09T05:25:04.95
IV.GALF.HNN. ML:2 0.0003255 1.62 AML other m 2018-10-09T05:25:04.97
IV.MUCR.HHN. ML:2.1 0.0003705 0.56 AML other m 2018-10-09T05:25:04.35
IV.MUCR.HHE. ML:2.4 0.0006985 0.44 AML other m 2018-10-09T05:25:04.61
IV.GALF.HHE. ML:2.5 0.00115 0.36 AML other m 2018-10-09T05:25:04.71
IV.NOV.HHE. ML:2.7 0.001435 1.58 AML other m 2018-10-09T05:25:05.82
IV.HAGA.HHN. ML:2.1 0.000312 0.7 AML other m 2018-10-09T05:25:07.92
IV.CAGR.HHE. ML:2.5 0.000926 0.4 AML other m 2018-10-09T05:25:08.23
IV.CAGR.HHN. ML:2.7 0.00155 0.52 AML other m 2018-10-09T05:25:08.72
IV.NOV.HHN. ML:2.5 0.0008705 0.5 AML other m 2018-10-09T05:25:08.99
IV.SSY.HHE. ML:2.9 0.00154 1.44 AML other m 2018-10-09T05:25:10.11
IV.HAGA.HHE. ML:2 0.0002355 0.48 AML other m 2018-10-09T05:25:10.19
IV.MPNC.HHN. ML:2.3 0.000389 1.42 AML other m 2018-10-09T05:25:13.12
IV.MILZ.HHE. ML:2.3 0.0003465 1.64 AML other m 2018-10-09T05:25:13.84
IV.IVPL.HHE. ML:2.6 0.000562 1.28 AML other m 2018-10-09T05:25:14.72
IV.RAFF.HHE. ML:2.2 0.0002195 0.48 AML other m 2018-10-09T05:25:14.45
IV.IVPL.HHN. ML:2.4 0.000393 0.54 AML other m 2018-10-09T05:25:14.25
IV.SSY.HHN. ML:3.1 0.002275 0.84 AML other m 2018-10-09T05:25:16.00
IV.RAFF.HHN. ML:2.1 0.0001845 0.7 AML other m 2018-10-09T05:25:16.41
IV.MILZ.HHN. ML:2.2 0.0002785 1.18 AML other m 2018-10-09T05:25:16.90
IV.HMDC.HHE. ML:2.7 0.0006405 0.34 AML other m 2018-10-09T05:25:16.52
IV.MTTG.HHE. ML:2 0.0001405 1.52 AML other m 2018-10-09T05:25:16.92
IV.HMDC.HHN. ML:2.7 0.0005585 1.32 AML other m 2018-10-09T05:25:16.26
IV.MPNC.HHE. ML:2.1 0.00024 1.46 AML other m 2018-10-09T05:25:17.88
IV.PLLN.EHE. ML:2.5 0.000428 0.44 AML other m 2018-10-09T05:25:18.56
IV.CSLB.HHN. ML:1.8 8.67E-5 0.84 AML other m 2018-10-09T05:25:18.76
IV.PLLN.EHN. ML:2.5 0.0004225 0.5 AML other m 2018-10-09T05:25:19.28
IV.MTTG.HHN. ML:1.9 0.0001145 1.3 AML other m 2018-10-09T05:25:19.12
IV.CSLB.HHE. ML:1.6 5.49E-5 0.42 AML other m 2018-10-09T05:25:20.56
IV.IACL.HHE. ML:2.5 0.0002775 1.72 AML other m 2018-10-09T05:25:22.06
IV.IACL.HHN. ML:2.4 0.000219 1.06 AML other m 2018-10-09T05:25:24.64
MN.CEL.HHN. ML:1.8 5.8E-5 0.52 AML other m 2018-10-09T05:25:25.30
MN.CEL.HHE. ML:1.8 5.625E-5 1.08 AML other m 2018-10-09T05:25:25.05
IV.SOI.EHN. ML:1.9 7.015E-5 1.66 AML other m 2018-10-09T05:25:25.03
IV.HPAC.HHN. ML:2.5 0.000269 0.98 AML other m 2018-10-09T05:25:26.19
IV.SOI.EHE. ML:1.9 7.225E-5 0.32 AML other m 2018-10-09T05:25:26.25
IV.CLTA.HHE. ML:1.8 6.25E-5 0.42 AML other m 2018-10-09T05:25:26.97
IV.JOPP.HHE. ML:1.8 3.925E-5 1.42 AML other m 2018-10-09T05:25:28.94
IV.CLTA.HHN. ML:1.8 6.1E-5 0.72 AML other m 2018-10-09T05:25:29.10
IV.JOPP.HHN. ML:1.8 4.685E-5 0.54 AML other m 2018-10-09T05:25:32.12
IV.HPAC.HHE. ML:2.5 0.0002465 0.96 AML other m 2018-10-09T05:25:33.57
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://cnt.rm.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol 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 full SEED format Download