Earthquake with magnitude of ML 3.5 on date 23-07-2009 and time 02:10:42 (Italy) in region 2 km SE Centuripe (EN)

A magnitude ML 3.5 earthquake occured in region: 2 km SE Centuripe (EN), on

  • 23-07-2009 00:10:42 (UTC)
  • 23-07-2009 02:10:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.6040, 14.7510 at 26 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
Centuripe EN 2 5470 5470
Catenanuova EN 7 4866 10336
Adrano CT 10 36122 46458
Regalbuto EN 11 7277 53735
Biancavilla CT 11 24007 77742
Santa Maria di Licodia CT 12 7641 85383
Paternò CT 14 48228 133611
Castel di Iudica CT 15 4625 138236
Ragalna CT 17 3924 142160

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km W of Catania (314555 inhabitants)
37 Km W of Acireale (52622 inhabitants)
62 Km E of Caltanissetta (63360 inhabitants)
74 Km NE of Gela (75827 inhabitants)
75 Km N of Vittoria (63339 inhabitants)
75 Km N of Ragusa (73313 inhabitants)
77 Km NW of Siracusa (122291 inhabitants)
83 Km N of Modica (54633 inhabitants)
97 Km SW of Reggio di Calabria (183035 inhabitants)
97 Km SW of Messina (238439 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 3.5 2009-07-23
00:10:42
37.604 14.751 26 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 933129
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-07-23 00:10:42 ± 0.06
Latitude 37.6040 ± 0.0036
Longitude 14.7510 ± 0.0057
Depth (km) 26 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 933129

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 524
Semi-minor axis of confidence ellipse (meter) 104
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 265
Circular confidence region, given by single value of horizontal uncertainty (meter) 640.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
Number of associated phases, regardless of their use for origin computation 90
Number of defining phases 62
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) 2.79149
Number of stations at which the event was observed 72
Number of stations from which data was used for origin computation 48
Magnitude information

ML:3.5

Field Value
Value 3.5
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 933129
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 17:47:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GIUL.HHN. 2009-07-23T00:11:50.29 10.0 undecidable manual Pn 0 0 0
MN.VSL.HHE. 2009-07-23T00:11:50.91 10.0 undecidable manual Pn 0 0 0
IV.MRVN.HHZ. 2009-07-23T00:11:45.50 10.0 undecidable manual Sn 0 0 0
IV.MRVN.HHZ. 2009-07-23T00:11:40.27 10.0 undecidable manual Pn 0 0 0
IV.MESG.HHZ. 2009-07-23T00:11:40.06 10.0 undecidable manual Pn 0 0 0
IV.PALZ.HHZ. 2009-07-23T00:11:39.25 10.0 undecidable manual Pn 0 0 0
IV.AMUR.HHN. 2009-07-23T00:11:38.33 10.0 undecidable manual Pn 0 0 0
IV.MRLC.HHZ. 2009-07-23T00:11:37.90 10.0 undecidable manual Sn 0 0 0
IV.NOCI.HHZ. 2009-07-23T00:11:37.99 10.0 undecidable manual Pn 0 0 0
IV.ACER.HHZ. 2009-07-23T00:11:36.25 10.0 undecidable manual Pn 0 0 0
GE.MATE.HHZ. 2009-07-23T00:11:35.65 10.0 undecidable manual Pn 0 0 0
IV.MIGL.HHZ. 2009-07-23T00:11:35.36 10.0 undecidable manual Pn 0 0 0
IV.MRLC.HHZ. 2009-07-23T00:11:34.25 10.0 undecidable manual Pn 0 0 0
IV.MCRV.HHE. 2009-07-23T00:11:33.65 10.0 undecidable manual Sn 0 0 0
IV.CSSN.SHZ. 2009-07-23T00:11:33.36 10.0 undecidable manual Pn 0 0 0
IV.CRAC.EHZ. 2009-07-23T00:11:32.06 10.0 undecidable manual Pn 0 0 0
IV.MCRV.HHE. 2009-07-23T00:11:30.89 10.0 undecidable manual Pn 0 0 0
IV.SGO.SHZ. 2009-07-23T00:11:29.12 10.0 undecidable manual Pn 0 0 0
IV.CDRU.HHN. 2009-07-23T00:11:28.04 10.0 undecidable manual Pn 0 0 0
IV.ORI.HHZ. 2009-07-23T00:11:28.47 10.0 undecidable manual Pn 0 0 0
IV.T0104.EHE. 2009-07-23T00:11:27.30 10.0 undecidable manual Pn 0 0 0
IV.SCHR.EHZ. 2009-07-23T00:11:26.03 0.3 undecidable manual Pg 21 309.8565 -0.309 18
IV.CMPR.HHN. 2009-07-23T00:11:25.79 10.0 undecidable manual Pn 0 0 0
IV.MCEL.HHZ. 2009-07-23T00:11:25.68 10.0 undecidable manual Pn 0 0 0
IV.MTSN.HHZ. 2009-07-23T00:11:25.56 0.6 undecidable manual Pg 16 307.7586 -0.518 11
IV.SIRI.HHZ. 2009-07-23T00:11:24.83 0.6 undecidable manual Pg 18 301.8645 -0.515 12
IV.VAGA.HHN. 2009-07-23T00:11:24.73 10.0 undecidable manual Pn 0 0 0
IV.MGR.HHZ. 2009-07-23T00:11:22.97 0.3 undecidable manual Pg 14 289.488 -0.841 17
IV.MMN.HHZ. 2009-07-23T00:11:21.75 0.3 undecidable manual Pg 23 275.5131 -0.313 24
IV.BULG.HHZ. 2009-07-23T00:11:21.93 0.3 undecidable manual Pg 11 279.8088 -0.673 21
MN.CUC.HHZ. 2009-07-23T00:11:21.86 0.6 undecidable manual Pg 19 280.7079 -0.85 13
IV.PTS.SHZ. 2009-07-23T00:11:19.24 0.3 undecidable manual Pg 251 259.1406 -0.795 24
IV.TDS.SHZ. 2009-07-23T00:11:18.17 10.0 undecidable manual Pg 0 0 0
MN.TIP.HHZ. 2009-07-23T00:11:18.65 0.6 undecidable manual Pg 44 247.0638 0.126 21
IV.MPAZ.HHZ. 2009-07-23T00:11:17.13 0.3 undecidable manual Sg 70 116.7942 0.66 53
IV.SERS.HHZ. 2009-07-23T00:11:16.91 0.3 undecidable manual Pg 46 231.6903 0.292 34
IV.CARO.HHZ. 2009-07-23T00:11:14.80 0.3 undecidable manual Pg 34 223.11 -0.753 32
IV.GRI.EHZ. 2009-07-23T00:11:12.34 10.0 undecidable manual Pg 0 0 0
MN.WDD.HHZ. 2009-07-23T00:11:11.66 0.3 undecidable manual Pg 186 196.9584 -0.635 40
IV.MTGR.SHZ. 2009-07-23T00:11:10.55 0.3 undecidable manual Pg 281 177.5889 0.667 42
IV.PLAC.HHZ. 2009-07-23T00:11:10.07 0.3 undecidable manual Pg 57 174.7917 0.536 45
IV.USI.HHZ. 2009-07-23T00:11:09.35 0.6 undecidable manual Pg 312 183.8826 -1.31 21
IV.MFNL.SHZ. 2009-07-23T00:11:08.87 0.6 undecidable manual Pg 278 161.8158 0.952 27
IV.MILZ.HHZ. 2009-07-23T00:11:08.83 0.3 undecidable manual Sg 29 85.1481 0.662 57
IV.CRJA.SHZ. 2009-07-23T00:11:08.24 0.3 undecidable manual Pg 279 154.8228 1.189 37
IV.MMGO.SHZ. 2009-07-23T00:11:07.18 0.6 undecidable manual Pg 273 155.9217 -0.012 37
IV.HAVL.HHZ. 2009-07-23T00:11:06.75 0.1 undecidable manual Sg 155 78.5658 0.292 84
IV.JOPP.HHN. 2009-07-23T00:11:05.51 0.3 undecidable manual Pg 41 149.0397 -0.814 46
IV.CORL.HHE. 2009-07-23T00:11:04.82 0.3 undecidable manual Pg 285 130.9689 0.743 48
IV.HMDC.HHZ. 2009-07-23T00:11:04.64 0.3 undecidable manual Sg 178 71.5728 0.007 67
IV.STR4.BHZ. 2009-07-23T00:11:03.97 0.6 undecidable manual Pg 17 135.864 -0.723 33
IV.SOI.EHZ. 2009-07-23T00:11:03.14 0.3 undecidable manual Pg 65 125.4744 -0.263 58
MN.CEL.HHN. 2009-07-23T00:11:03.02 0.3 undecidable manual Pg 54 123.7872 -0.162 59
IV.MPAZ.HHZ. 2009-07-23T00:11:02.13 0.3 undecidable manual Pg 70 116.7942 -0.005 62
IV.MSCL.HHZ. 2009-07-23T00:11:01.76 0.3 undecidable manual Pg 52 114.5964 -0.046 61
IV.SSY.HHE. 2009-07-23T00:11:01.25 0.3 undecidable manual Sg 150 57.0984 0.326 65
IV.MMME.HHZ. 2009-07-23T00:11:01.14 0.3 undecidable manual Sg 50 57.3981 0.124 69
IV.FAVR.SHZ. 2009-07-23T00:11:01.23 0.3 undecidable manual Pg 249 102.5196 1.265 40
IV.AGST.EHZ. 2009-07-23T00:11:01.01 0.1 undecidable manual Sg 132 56.9985 0.116 91
IV.RAFF.HHZ. 2009-07-23T00:11:00.21 0.3 undecidable manual Sg 219 54.4011 -0.035 70
IV.IACL.HHZ. 2009-07-23T00:11:00.33 0.3 undecidable manual Pg 342 108.7134 -0.582 55
IV.MSRU.HHZ. 2009-07-23T00:10:59.33 0.3 undecidable manual Pg 42 98.8233 -0.071 63
IV.HVZN.HHZ. 2009-07-23T00:10:58.02 0.3 undecidable manual Sg 184 47.3193 -0.459 65
IV.MTTG.HHZ. 2009-07-23T00:10:58.79 0.3 undecidable manual Pg 62 94.239 0.074 64
IV.ILLI.HHZ. 2009-07-23T00:10:58.66 0.3 undecidable manual Pg 10 95.0382 -0.166 62
IV.MILZ.HHZ. 2009-07-23T00:10:57.46 0.3 undecidable manual Pg 29 85.1481 0.119 65
IV.HCRL.HHZ. 2009-07-23T00:10:57.70 0.1 undecidable manual Sg 145 43.3233 0.177 92
IV.IVPL.HHE. 2009-07-23T00:10:57.75 0.3 undecidable manual Pg 13 88.0452 -0.022 65
IV.HAVL.HHZ. 2009-07-23T00:10:56.16 0.1 undecidable manual Pg 155 78.5658 -0.194 86
IV.MNO.SHZ. 2009-07-23T00:10:56.01 0.3 undecidable manual Sg 352 36.6411 0.083 72
IV.GIB.EHZ. 2009-07-23T00:10:55.97 0.1 undecidable manual Pg 304 76.6677 -0.087 88
IV.CSLB.SHZ. 2009-07-23T00:10:55.12 0.3 undecidable manual Pg 302 71.1732 -0.117 66
IV.RESU.HHN. 2009-07-23T00:10:54.47 0.6 undecidable manual Pg 275 61.1943 0.715 38
IV.HMDC.HHZ. 2009-07-23T00:10:54.93 0.3 undecidable manual Pg 178 71.5728 -0.37 63
IV.PLLN.SHZ. 2009-07-23T00:10:54.78 0.3 undecidable manual Pg 309 68.5758 -0.068 67
IV.SSY.HHE. 2009-07-23T00:10:53.17 0.1 undecidable manual Pg 150 57.0984 0.011 92
IV.MMME.HHZ. 2009-07-23T00:10:53.55 0.1 undecidable manual Pg 50 57.3981 0.338 87
IV.RAFF.HHZ. 2009-07-23T00:10:52.77 0.1 undecidable manual Pg 219 54.4011 0.003 93
IV.AGST.EHZ. 2009-07-23T00:10:52.90 0.1 undecidable manual Pg 132 56.9985 -0.241 89
IV.GALF.HHE. 2009-07-23T00:10:52.30 0.3 undecidable manual Sg 306 20.0688 -0.163 71
IV.ESLN.HHZ. 2009-07-23T00:10:52.34 0.3 undecidable manual Sg 63 22.0668 -0.48 65
IV.HVZN.HHZ. 2009-07-23T00:10:51.54 0.1 undecidable manual Pg 184 47.3193 -0.207 91
IV.MNO.SHZ. 2009-07-23T00:10:50.76 0.1 undecidable manual Pg 352 36.6411 0.486 88
IV.HCRL.HHZ. 2009-07-23T00:10:50.99 0.1 undecidable manual Pg 145 43.3233 -0.205 92
IV.ESLN.HHZ. 2009-07-23T00:10:49.00 0.1 undecidable manual Pg 63 22.0668 0.52 89
IV.ECNV.HHZ. 2009-07-23T00:10:49.64 0.3 undecidable manual Sg 255 3.4965 -0.903 57
IV.GALF.HHE. 2009-07-23T00:10:48.22 0.1 undecidable manual Pg 306 20.0688 -0.053 98
IV.ECNV.HHZ. 2009-07-23T00:10:47.30 0.1 undecidable manual Pg 255 3.4965 0.135 100
IV.MEU.SHZ. 2009-07-23T00:10:30.29 10.0 undecidable manual Sg 0 0 0
IV.MEU.SHZ. 2009-07-23T00:10:22.29 10.0 undecidable manual Pg 0 0 0
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