Earthquake with magnitude of ML 3.0 on date 20-05-2006 and time 07:56:39 (Italy) in region 4 km NE Ragalna (CT)

A magnitude ML 3.0 earthquake occured in region: 4 km NE Ragalna (CT), on

  • 20-05-2006 05:56:39 (UTC)
  • 20-05-2006 07:56:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.6570, 14.9710 at 14 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.

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 4 3924 3924
Nicolosi CT 7 7463 11387
Belpasso CT 7 28108 39495
Santa Maria di Licodia CT 9 7641 47136
Pedara CT 9 14102 61238
Biancavilla CT 9 24007 85245
Camporotondo Etneo CT 10 5023 90268
San Pietro Clarenza CT 10 7743 98011
Trecastagni CT 11 10910 108921
Paternò CT 11 48228 157149
Mascalucia CT 12 31958 189107
Adrano CT 12 36122 225229
Viagrande CT 12 8563 233792
Zafferana Etnea CT 13 9517 243309
Tremestieri Etneo CT 13 20589 263898
Gravina di Catania CT 13 25838 289736
Aci Bonaccorsi CT 14 3524 293260
San Giovanni la Punta CT 14 23060 316320
Sant'Agata li Battiati CT 15 9479 325799
Aci Sant'Antonio CT 15 17984 343783
Milo CT 15 1087 344870
Santa Venerina CT 15 8592 353462
Misterbianco CT 15 49410 402872
San Gregorio di Catania CT 16 11966 414838
Motta Sant'Anastasia CT 16 12116 426954
Valverde CT 16 7840 434794
Aci Catena CT 16 29851 464645
Acireale CT 18 52622 517267
Sant'Alfio CT 18 1582 518849
Bronte CT 19 19172 538021
Aci Castello CT 19 18723 556744
Catania CT 20 314555 871299

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km W of Acireale (52622 inhabitants)
20 Km NW of Catania (314555 inhabitants)
72 Km NW of Siracusa (122291 inhabitants)
78 Km SW of Reggio di Calabria (183035 inhabitants)
79 Km SW of Messina (238439 inhabitants)
82 Km E of Caltanissetta (63360 inhabitants)
84 Km N of Ragusa (73313 inhabitants)
87 Km NE of Vittoria (63339 inhabitants)
91 Km N of Modica (54633 inhabitants)
91 Km NE of Gela (75827 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
Md 3.0
ML 3.0
2006-05-20
05:56:39
37.657 14.971 14 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 569259
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2006-05-20 05:56:39 ± 0.08
Latitude 37.6570 ± 0.0054
Longitude 14.9710 ± 0.0102
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 569259

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 904
Semi-minor axis of confidence ellipse (meter) 209
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 266
Circular confidence region, given by single value of horizontal uncertainty (meter) 1081.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
Number of associated phases, regardless of their use for origin computation 55
Number of defining phases 38
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.54
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 2.84276
Number of stations at which the event was observed 46
Number of stations from which data was used for origin computation 29
Magnitudes information

ML:3.0

Field Value
Value 3.0
Uncertainty 0.5
Num. used stations
Type of magnitude ML
Reference to an origin 569259
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:55:44

Md:3.0

Field Value
Value 3.0
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 569259
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:55:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FAGN.EHN. 2006-05-20T05:57:43.88 10.0 undecidable manual Pn 0 0 0
IV.SACS.HHE. 2006-05-20T05:57:42.84 10.0 undecidable manual Pg 0 0 0
IV.MNS.BHZ. 2006-05-20T05:57:38.25 10.0 undecidable manual Pg 0 0 0
IV.CING.HHN. 2006-05-20T05:57:36.25 10.0 undecidable manual Pg 0 0 0
IV.ARV.SHZ. 2006-05-20T05:57:33.65 10.0 undecidable manual Pg 0 0 0
IV.CAMP.EHE. 2006-05-20T05:57:32.95 10.0 undecidable manual Pg 0 0 0
IV.ARVD.EHZ. 2006-05-20T05:57:32.90 10.0 undecidable manual Pg 0 0 0
IV.MURB.HHN. 2006-05-20T05:57:30.42 10.0 undecidable manual Pg 0 0 0
IV.TERO.HHZ. 2006-05-20T05:57:27.11 10.0 undecidable manual Pg 0 0 0
IV.ORI.EHZ. 2006-05-20T05:57:26.31 10.0 undecidable manual Pg 0 0 0
IV.SGO.SHZ. 2006-05-20T05:57:26.25 10.0 undecidable manual Pg 0 0 0
IV.CDRU.HHE. 2006-05-20T05:57:24.49 0.1 undecidable manual Pg 5 315.5508 -0.639 22
IV.SCHR.EHZ. 2006-05-20T05:57:23.06 0.1 undecidable manual Pg 18 297.6798 0.151 26
IV.CMPR.HHN. 2006-05-20T05:57:21.69 0.1 undecidable manual Pg 5 296.5809 -1.081 19
IV.NRCA.SHZ. 2006-05-20T05:57:20.75 10.0 undecidable manual Pg 0 0 0
IV.MGR.BHE. 2006-05-20T05:57:19.02 10.0 undecidable manual Pg 0 0 0
MN.CUC.HHZ. 2006-05-20T05:57:17.65 10.0 undecidable manual Pg 0 0 0
MN.TIP.HHZ. 2006-05-20T05:57:14.54 0.1 undecidable manual Pg 42 229.4925 0.122 50
IV.SBPO.BHN. 2006-05-20T05:57:14.26 10.0 undecidable manual Pg 0 0 0
IV.SERS.HHZ. 2006-05-20T05:57:13.10 0.1 undecidable manual Pg 44 213.8193 0.625 49
IV.IFIL.BHZ. 2006-05-20T05:57:10.86 0.1 undecidable manual Sg 341 106.6155 0.458 40
IV.GRI.EHZ. 2006-05-20T05:57:08.60 10.0 undecidable manual Pg 0 0 0
IV.USI.SHZ. 2006-05-20T05:57:07.94 10.0 undecidable manual Pg 0 0 0
IV.PLAC.HHZ. 2006-05-20T05:57:05.06 0.1 undecidable manual Pg 55 155.4222 0.218 74
IV.CLTB.SHZ. 2006-05-20T05:57:05.36 0.1 undecidable manual Pg 267 154.4343 0.663 67
IV.CORL.HHZ. 2006-05-20T05:57:04.45 0.1 undecidable manual Pg 281 148.5402 0.67 68
IV.HMDC.BHZ. 2006-05-20T05:57:03.65 0.1 undecidable manual Sg 192 79.1652 0.581 40
IV.HAVL.BHZ. 2006-05-20T05:57:03.50 0.1 undecidable manual Sg 170 78.4659 0.612 39
IV.SOI.EHZ. 2006-05-20T05:56:57.14 0.1 undecidable manual Pg 64 105.5166 -0.011 88
IV.HVZN.BHZ. 2006-05-20T05:56:57.50 0.1 undecidable manual Sg 203 57.6978 0.165 46
IV.SSY.BHZ. 2006-05-20T05:56:57.78 0.1 undecidable manual Sg 171 56.0994 0.859 37
IV.IFIL.BHZ. 2006-05-20T05:56:56.55 0.1 undecidable manual Pg 341 106.6155 -0.776 70
MN.CEL.HHZ. 2006-05-20T05:56:56.99 0.1 undecidable manual Pg 50 104.9172 -0.062 87
IV.SLNA.SHZ. 2006-05-20T05:56:56.24 0.1 undecidable manual Pg 353 101.3208 -0.262 84
IV.SCLL.SHZ. 2006-05-20T05:56:55.14 0.1 undecidable manual Pg 44 93.0402 -0.083 89
IV.AGST.SHZ. 2006-05-20T05:56:55.91 0.1 undecidable manual Sg 153 49.8168 0.667 41
IV.GIB.EHZ. 2006-05-20T05:56:55.75 0.1 undecidable manual Pg 294 90.6426 0.886 70
IV.CSLB.SHZ. 2006-05-20T05:56:54.08 0.1 undecidable manual Pg 292 85.8474 -0.047 90
IV.ILLI.BHZ. 2006-05-20T05:56:54.58 0.1 undecidable manual Pg 359 87.5457 0.199 88
I1.HAGA.BHZ. 2006-05-20T05:56:54.39 0.1 undecidable manual Sg 158 44.3223 0.609 42
IV.IVPL.BHZ. 2006-05-20T05:56:53.01 0.1 negative manual Pg 1 79.7646 -0.182 89
IV.MSI.SHZ. 2006-05-20T05:56:53.31 0.1 undecidable manual Pg 40 79.365 0.184 89
IV.MSRU.BHZ. 2006-05-20T05:56:53.22 0.1 negative manual Pg 35 82.1511 -0.327 86
IV.MMME.BHZ. 2006-05-20T05:56:53.32 0.1 undecidable manual Sg 39 39.627 0.794 40
IV.HMDC.BHZ. 2006-05-20T05:56:52.49 0.1 undecidable manual Pg 192 79.1652 -0.604 80
IV.HAVL.BHZ. 2006-05-20T05:56:52.58 0.1 undecidable manual Pg 170 78.4659 -0.409 85
IV.MTTG.SHZ. 2006-05-20T05:56:52.72 0.1 undecidable manual Pg 59 74.5698 0.342 87
IV.HVZN.BHZ. 2006-05-20T05:56:49.03 0.1 undecidable manual Pg 203 57.6978 -0.754 79
IV.SSY.BHZ. 2006-05-20T05:56:49.17 0.1 undecidable manual Pg 171 56.0994 -0.374 90
IV.AGST.SHZ. 2006-05-20T05:56:48.10 0.1 undecidable manual Pg 153 49.8168 -0.476 89
I1.HAGA.BHZ. 2006-05-20T05:56:47.27 0.1 undecidable manual Pg 158 44.3223 -0.462 90
IV.MMME.BHZ. 2006-05-20T05:56:46.80 0.1 undecidable manual Pg 39 39.627 -0.206 95
IV.MNO.SHZ. 2006-05-20T05:56:46.90 0.1 undecidable manual Pg 322 38.8278 0.008 99
IV.ESLN.BHE. 2006-05-20T05:56:44.50 0.1 undecidable manual Sg 4 4.0959 0.326 50
IV.ESLN.BHE. 2006-05-20T05:56:41.93 0.1 undecidable manual Pg 4 4.0959 -0.255 100
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