Earthquake with magnitude of ML 3.4 on date 13-05-2009 and time 16:13:47 (Italy) in region 4 km E Santa Venerina (CT)

A magnitude ML 3.4 earthquake occured in region: 4 km E Santa Venerina (CT), on

  • 13-05-2009 14:13:47 (UTC)
  • 13-05-2009 16:13:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.6830, 15.1800 at 2 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
Santa Venerina CT 4 8592 8592
Giarre CT 5 27659 36251
Riposto CT 6 14838 51089
Zafferana Etnea CT 7 9517 60606
Milo CT 7 1087 61693
Sant'Alfio CT 8 1582 63275
Acireale CT 8 52622 115897
Mascali CT 9 14282 130179
Aci Catena CT 9 29851 160030
Aci Sant'Antonio CT 10 17984 178014
Viagrande CT 11 8563 186577
Aci Bonaccorsi CT 11 3524 190101
Trecastagni CT 11 10910 201011
Valverde CT 12 7840 208851
Fiumefreddo di Sicilia CT 13 9623 218474
Pedara CT 13 14102 232576
San Giovanni la Punta CT 14 23060 255636
Piedimonte Etneo CT 14 3963 259599
Aci Castello CT 14 18723 278322
San Gregorio di Catania CT 14 11966 290288
Tremestieri Etneo CT 15 20589 310877
Nicolosi CT 15 7463 318340
Sant'Agata li Battiati CT 16 9479 327819
Calatabiano CT 16 5308 333127
Mascalucia CT 16 31958 365085
Gravina di Catania CT 17 25838 390923
Linguaglossa CT 18 5403 396326
San Pietro Clarenza CT 18 7743 404069
Giardini-Naxos ME 20 9415 413484
Camporotondo Etneo CT 20 5023 418507

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km N of Acireale (52622 inhabitants)
22 Km NE of Catania (314555 inhabitants)
63 Km SW of Reggio di Calabria (183035 inhabitants)
66 Km SW of Messina (238439 inhabitants)
70 Km N of Siracusa (122291 inhabitants)
93 Km NE of Ragusa (73313 inhabitants)
99 Km NE of Modica (54633 inhabitants)
99 Km NE of Vittoria (63339 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

These three maps show the results of the analysis using the software ShakeMap designed to provide the level of ground shaking experienced in a region using the data recorded by seismometers and strong motion instruments and seismological information regarding the attenuation of the wavefield with distance and the site characteristics. The Shakemaps are determined for research purposes to provide fast estimates of the level of ground shaking produced by the earthquake. The maps are calculated automatically and updated as more data become available. See http://shakemap.ingv.it for additional information. The black star indicates the epicenter. The triangles show the accelerometric and velocimetric stations used in the calculation, colored according to the recorded shaking.

Intensity Shakemap

Intensity Shakemap

This map shows the distribution of instrumental intensities. The intensity is derived through an empirical law that correlates the recorded values of actual ground shaking, e.g., acceleration and velocity, with the macroseismic intensity for Italian earthquakes, as reported in the Italian Macroseismic Database (DBMI15, https://doi.org/10.13127/cpti/cpti15.3).
Peak ground acceleration Shakemap

Peak ground acceleration Shakemap

This map shows the distribution of peak ground acceleration expressed as percent of the acceleration of gravity (i.e., g = 9.81 m/s²).
Peak velocity Shakemap

Peak velocity Shakemap

This map shows the distribution of peak ground velocities expressed in cm/s.
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 3.4 2009-05-13
14:13:47
37.683 15.18 3 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 864149
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-05-13 14:13:47 ± 0.17
Latitude 37.6830 ± 0.0072
Longitude 15.1800 ± 0.0102
Depth (km) 3 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 864149

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 935
Semi-minor axis of confidence ellipse (meter) 307
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 123
Circular confidence region, given by single value of horizontal uncertainty (meter) 1204.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 108
Number of associated phases, regardless of their use for origin computation 57
Number of defining phases 33
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.73
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 2.39939
Number of stations at which the event was observed 52
Number of stations from which data was used for origin computation 31
Magnitude information

ML:3.4

Field Value
Value 3.4
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 864149
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 16:24:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.AQU.HHZ. 2009-05-13T14:15:03.51 10.0 undecidable manual Pn 0 0 0
IV.FAGN.HHE. 2009-05-13T14:15:00.01 10.0 undecidable manual Pn 0 0 0
IV.FG5.SHZ. 2009-05-13T14:14:50.47 10.0 undecidable manual Pn 0 0 0
MN.WDD.HHN. 2009-05-13T14:14:46.54 10.0 undecidable manual Pn 0 0 0
IV.ACER.HHZ. 2009-05-13T14:14:44.74 10.0 undecidable manual Sn 0 0 0
IV.AMUR.HHZ. 2009-05-13T14:14:42.33 10.0 undecidable manual Pn 0 0 0
IV.MRLC.HHZ. 2009-05-13T14:14:41.93 10.0 undecidable manual Pn 0 0 0
IV.ACER.HHZ. 2009-05-13T14:14:40.61 10.0 undecidable manual Pn 0 0 0
IV.SGO.SHZ. 2009-05-13T14:14:36.52 10.0 undecidable manual Pg 0 0 0
IV.SCHR.EHZ. 2009-05-13T14:14:36.00 10.0 undecidable manual Sg 0 0 0
IV.CDRU.HHN. 2009-05-13T14:14:35.50 10.0 undecidable manual Pg 0 0 0
IV.STR3.BHN. 2009-05-13T14:14:33.84 10.0 undecidable manual Pg 0 0 0
IV.SACS.HHE. 2009-05-13T14:14:32.16 10.0 undecidable manual Pg 0 0 0
IV.SCHR.EHZ. 2009-05-13T14:14:32.27 10.0 undecidable manual Pg 0 0 0
IV.SIRI.HHZ. 2009-05-13T14:14:31.12 10.0 undecidable manual Pg 0 0 0
IV.CMPR.HHN. 2009-05-13T14:14:31.34 10.0 undecidable manual Pg 0 0 0
IV.OVO.HHN. 2009-05-13T14:14:28.26 10.0 undecidable manual Pg 0 0 0
IV.BULG.HHZ. 2009-05-13T14:14:27.55 0.6 undecidable manual Pg 4 266.3334 -1.475 11
MN.CUC.HHN. 2009-05-13T14:14:27.82 10.0 undecidable manual Pg 0 0 0
IV.TDS.SHZ. 2009-05-13T14:14:26.71 10.0 undecidable manual Pg 0 0 0
IV.PIPA.HHZ. 2009-05-13T14:14:25.95 10.0 undecidable manual Pg 0 0 0
IV.GRI.EHZ. 2009-05-13T14:14:24.45 10.0 undecidable manual Sg 0 0 0
MN.TIP.HHZ. 2009-05-13T14:14:22.26 0.3 undecidable manual Pg 39 215.3178 -0.426 40
IV.SERS.HHZ. 2009-05-13T14:14:20.36 0.3 undecidable manual Pg 41 199.3449 -0.342 45
IV.USI.HHZ. 2009-05-13T14:14:19.69 0.3 undecidable manual Pg 304 208.236 -2.107 16
IV.CARO.HHZ. 2009-05-13T14:14:18.68 10.0 undecidable manual Pg 0 0 0
IV.GRI.EHZ. 2009-05-13T14:14:17.89 10.0 undecidable manual Pg 0 0 0
IV.CORL.HHE. 2009-05-13T14:14:16.78 0.3 undecidable manual Pg 279 166.1115 0.744 46
IV.FAVR.SHZ. 2009-05-13T14:14:13.85 10.0 undecidable manual Pg 0 0 0
IV.PLAC.HHZ. 2009-05-13T14:14:12.27 0.6 undecidable manual Pg 52 138.9609 0.416 38
IV.ALJA.HHZ. 2009-05-13T14:14:10.88 0.6 undecidable manual Pg 274 125.3745 1.125 29
IV.JOPP.HHZ. 2009-05-13T14:14:08.46 0.6 undecidable manual Pg 31 119.5914 -0.404 40
I1.IACL.BHZ. 2009-05-13T14:14:08.39 0.3 undecidable manual Pg 323 118.6923 -0.332 61
IV.IFIL.BHZ. 2009-05-13T14:14:07.15 0.3 undecidable manual Pg 332 111.0999 -0.41 61
IV.GIB.EHZ. 2009-05-13T14:14:07.94 0.3 undecidable manual Pg 289 106.7154 1.066 47
IV.RESU.HHZ. 2009-05-13T14:14:06.75 0.6 undecidable manual Pg 268 98.7234 1.105 31
IV.CSLB.SHZ. 2009-05-13T14:14:06.62 0.6 undecidable manual Pg 286 102.3198 0.419 41
IV.SOI.EHZ. 2009-05-13T14:14:04.73 0.1 undecidable manual Pg 60 87.9453 0.737 76
IV.ILLI.BHZ. 2009-05-13T14:14:04.18 0.6 undecidable manual Pg 347 87.0462 0.333 43
IV.HMDC.BHZ. 2009-05-13T14:14:03.98 0.1 undecidable manual Pg 204 87.5457 0.048 92
I1.MSCL.BHN. 2009-05-13T14:14:03.03 0.6 undecidable manual Pg 41 80.9523 0.112 46
IV.RAFF.HHZ. 2009-05-13T14:14:03.75 0.1 undecidable manual Pg 235 88.245 -0.286 88
IV.MPAZ.BHZ. 2009-05-13T14:14:03.38 0.1 undecidable manual Pg 67 78.4659 0.857 73
IV.HAVL.BHZ. 2009-05-13T14:14:02.77 0.6 undecidable manual Pg 184 80.364 -0.053 47
IV.IVPL.BHZ. 2009-05-13T14:14:02.45 0.6 undecidable manual Pg 347 78.8655 -0.145 46
IV.MSRU.BHZ. 2009-05-13T14:14:00.65 0.6 undecidable manual Pg 24 70.5738 -0.665 41
IV.HVZN.BHZ. 2009-05-13T14:14:00.38 0.1 undecidable manual Pg 216 69.2751 -0.738 79
IV.MILZ.HHZ. 2009-05-13T14:13:59.73 0.6 undecidable manual Pg 4 65.49 -0.791 39
IV.GALF.HHZ. 2009-05-13T14:13:59.05 0.3 undecidable manual Pg 273 53.9016 0.318 69
IV.SSY.BHZ. 2009-05-13T14:13:59.20 0.3 undecidable manual Pg 189 58.9965 -0.327 69
IV.MTTG.HHZ. 2009-05-13T14:13:59.15 0.3 undecidable manual Pg 52 57.7977 -0.192 71
IV.MMME.BHZ. 2009-05-13T14:13:58.08 0.6 undecidable manual Sg 13 28.749 0.146 51
IV.AGST.EHE. 2009-05-13T14:13:57.52 0.1 undecidable manual Pg 175 47.4192 0.079 99
IV.HCRL.BHZ. 2009-05-13T14:13:57.19 0.1 undecidable manual Pg 196 46.2204 0.006 100
IV.ESLN.BHZ. 2009-05-13T14:13:54.40 0.6 undecidable manual Sg 274 18.0708 0.151 52
IV.MMME.BHZ. 2009-05-13T14:13:53.52 0.1 undecidable manual Pg 13 28.749 -0.18 99
IV.ESLN.BHZ. 2009-05-13T14:13:51.34 0.1 undecidable manual Pg 274 18.0708 -0.233 100
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
Waveforms Seismic signals in miniseed + resp format Download