Earthquake with magnitude of ML 4.4 on date 19-12-2009 and time 09:01:16 (UTC) in region 11 km SE Maletto (CT)

A magnitude ML 4.4 earthquake occured in region: 11 km SE Maletto (CT), on

  • 19-12-2009 09:01:16 (UTC)
  • 19-12-2009 10:01:16 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7820, 14.9740 at 27 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
Maletto CT 11 3920 3920
Randazzo CT 11 10900 14820
Bronte CT 12 19172 33992
Milo CT 14 1087 35079
Moio Alcantara ME 15 717 35796
Zafferana Etnea CT 15 9517 45313
Santa Domenica Vittoria ME 15 980 46293
Sant'Alfio CT 16 1582 47875
Linguaglossa CT 16 5403 53278
Malvagna ME 17 733 54011
Ragalna CT 17 3924 57935
Maniace CT 17 3765 61700
Roccella Valdemone ME 17 666 62366
Castiglione di Sicilia CT 17 3215 65581
Santa Venerina CT 18 8592 74173
Biancavilla CT 18 24007 98180
Adrano CT 18 36122 134302
Piedimonte Etneo CT 18 3963 138265
Nicolosi CT 19 7463 145728
Giarre CT 19 27659 173387
Francavilla di Sicilia ME 20 3945 177332
Mascali CT 20 14282 191614
Pedara CT 20 14102 205716
Santa Maria di Licodia CT 20 7641 213357

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NW of Acireale (52622 inhabitants)
33 Km N of Catania (314555 inhabitants)
69 Km SW of Messina (238439 inhabitants)
69 Km SW of Reggio di Calabria (183035 inhabitants)
85 Km NW of Siracusa (122291 inhabitants)
86 Km E of Caltanissetta (63360 inhabitants)
98 Km N of Ragusa (73313 inhabitants)
100 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 4.4 2009-12-19
09:01:16
37.782 14.974 27 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1000369
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-12-19 09:01:16 ± 0.11
Latitude 37.7820 ± 0.0072
Longitude 14.9740 ± 0.0114
Depth (km) 27 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1000369

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1021
Semi-minor axis of confidence ellipse (meter) 404
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 291
Circular confidence region, given by single value of horizontal uncertainty (meter) 1280.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 94
Number of associated phases, regardless of their use for origin computation 86
Number of defining phases 49
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.79
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 3.58200
Number of stations at which the event was observed 69
Number of stations from which data was used for origin computation 39
Magnitude information

ML:4.4

Field Value
Value 4.4
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 1000369
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 19:10:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VMG.SHZ. 2009-12-19T09:02:57.93 10.0 undecidable manual Pn 0 0 0
IV.RAVA.EHZ. 2009-12-19T09:02:54.00 10.0 undecidable manual Pn 0 0 0
IV.MRLC.HHE. 2009-12-19T09:02:42.33 10.0 undecidable manual Sg 0 0 0
IV.CAFE.HHE. 2009-12-19T09:02:39.59 10.0 undecidable manual Sn 0 0 0
MN.PDG.HHZ. 2009-12-19T09:02:39.99 10.0 undecidable manual Pn 0 0 0
IV.NRCA.SHZ. 2009-12-19T09:02:38.90 10.0 undecidable manual Pn 0 0 0
IV.SGG.HHZ. 2009-12-19T09:02:38.43 10.0 undecidable manual Sn 0 0 0
IV.FAGN.HHE. 2009-12-19T09:02:37.56 10.0 undecidable manual Pn 0 0 0
IV.CDRU.HHN. 2009-12-19T09:02:37.04 10.0 undecidable manual Pn 0 0 0
IV.MRVN.HHE. 2009-12-19T09:02:35.09 10.0 undecidable manual Pn 0 0 0
IV.ACER.HHZ. 2009-12-19T09:02:35.13 10.0 undecidable manual Sn 0 0 0
IV.MRB1.HHZ. 2009-12-19T09:02:34.88 10.0 undecidable manual Pn 0 0 0
IV.PTRJ.HHE. 2009-12-19T09:02:31.95 10.0 undecidable manual Sn 0 0 0
IV.MTSN.HHN. 2009-12-19T09:02:29.12 10.0 undecidable manual Pn 0 0 0
IV.PTRJ.HHE. 2009-12-19T09:02:22.14 10.0 undecidable manual Pn 0 0 0
IV.MSAG.HHN. 2009-12-19T09:02:21.75 10.0 undecidable manual Pn 0 0 0
IV.NOVE.EHE. 2009-12-19T09:02:19.70 10.0 undecidable manual Pn 0 0 0
IV.PRMA.HHZ. 2009-12-19T09:02:15.84 10.0 undecidable manual Pn 0 0 0
IV.SGG.HHZ. 2009-12-19T09:02:14.38 10.0 undecidable manual Pn 0 0 0
IV.SGTA.HHE. 2009-12-19T09:02:11.85 10.0 undecidable manual Pn 0 0 0
IV.CAFE.HHE. 2009-12-19T09:02:11.51 10.0 undecidable manual Pn 0 0 0
IV.PE9.EHZ. 2009-12-19T09:02:11.72 10.0 undecidable manual Pn 0 0 0
IV.MESG.HHZ. 2009-12-19T09:02:10.61 0.3 undecidable manual Pg 38 397.602 -0.524 17
IV.AMUR.HHN. 2009-12-19T09:02:08.29 0.3 undecidable manual Pg 21 373.7481 0.127 19
IV.NOCI.HHN. 2009-12-19T09:02:08.87 0.3 undecidable manual Pg 28 378.732 0.09 19
IV.PALZ.HHZ. 2009-12-19T09:02:08.48 0.3 undecidable manual Pg 13 360.7611 1.935 8
IV.ACER.HHZ. 2009-12-19T09:02:06.26 10.0 undecidable manual Pn 0 0 0
IV.MIGL.HHZ. 2009-12-19T09:02:06.30 10.0 undecidable manual Pn 0 0 0
BA.PZUN.HHZ. 2009-12-19T09:02:06.26 10.0 undecidable manual Pn 0 0 0
IV.LTRZ.EHZ. 2009-12-19T09:02:05.96 0.3 undecidable manual Pg 26 350.7822 0.654 17
GE.MATE.HHZ. 2009-12-19T09:02:05.75 0.3 undecidable manual Pg 25 351.0819 0.414 18
IV.MRLC.HHE. 2009-12-19T09:02:04.86 10.0 undecidable manual Pg 0 0 0
IV.PTRP.EHZ. 2009-12-19T09:02:04.17 10.0 undecidable manual Pg 0 0 0
IV.CRAC.EHE. 2009-12-19T09:02:03.80 10.0 undecidable manual Sg 0 0 0
IV.CRAC.EHE. 2009-12-19T09:02:01.51 10.0 undecidable manual Pg 0 0 0
IV.GRI.EHE. 2009-12-19T09:02:00.81 10.0 undecidable manual Pg 0 0 0
IV.SCHR.EHN. 2009-12-19T09:01:58.29 10.0 undecidable manual Pg 0 0 0
IV.ORI.HHN. 2009-12-19T09:01:57.91 10.0 undecidable manual Pg 0 0 0
IV.SIRI.HHN. 2009-12-19T09:01:56.44 0.3 undecidable manual Pg 16 277.1115 0.304 26
IV.CMPR.HHZ. 2009-12-19T09:01:55.75 0.3 undecidable manual Pg 6 282.7059 -1.08 17
MN.WDD.HHZ. 2009-12-19T09:01:55.40 10.0 undecidable manual Sg 0 0 0
IV.SALB.HHE. 2009-12-19T09:01:54.59 0.6 undecidable manual Pg 27 260.8389 0.478 19
IV.MGR.HHN. 2009-12-19T09:01:53.77 0.6 undecidable manual Pg 11 266.0337 -0.981 14
MN.CUC.HHZ. 2009-12-19T09:01:52.95 0.3 undecidable manual Pg 16 255.855 -0.538 29
MN.WDD.HHZ. 2009-12-19T09:01:51.54 10.0 undecidable manual Pg 0 0 0
IV.SERS.HHZ. 2009-12-19T09:01:47.55 0.3 undecidable manual Pg 46 203.8404 0.537 43
IV.MTGR.SHZ. 2009-12-19T09:01:46.18 0.3 undecidable manual Pg 274 194.4609 0.334 48
IV.TDS.SHZ. 2009-12-19T09:01:46.88 10.0 undecidable manual Pg 0 0 0
IV.HAVL.HHN. 2009-12-19T09:01:44.53 0.6 undecidable manual Sg 172 92.241 0.584 41
IV.GIB.HHE. 2009-12-19T09:01:43.85 0.6 undecidable manual Sg 286 86.1471 1.488 27
IV.MMGO.SHZ. 2009-12-19T09:01:43.81 0.3 undecidable manual Pg 266 175.7907 0.286 53
IV.CORL.HHE. 2009-12-19T09:01:40.93 0.6 undecidable manual Pg 275 146.8419 1.003 32
IV.MSRU.HHZ. 2009-12-19T09:01:39.91 0.6 undecidable manual Sg 41 70.8735 1.501 27
IV.PLAC.HHZ. 2009-12-19T09:01:39.78 0.6 undecidable manual Pg 59 147.6411 -0.245 40
IV.SSY.HHN. 2009-12-19T09:01:38.61 0.6 undecidable manual Sg 173 69.8745 0.474 44
IV.IVPL.HHN. 2009-12-19T09:01:38.97 0.3 undecidable manual Sg 0 65.8896 1.859 33
IV.FAVR.SHZ. 2009-12-19T09:01:38.84 0.6 undecidable manual Pg 244 128.4714 1.206 30
IV.HVZN.HHZ. 2009-12-19T09:01:38.71 0.6 undecidable manual Sg 199 70.7736 0.337 46
IV.STR3.BHZ. 2009-12-19T09:01:34.89 0.3 undecidable manual Pg 11 114.7962 -0.872 52
IV.HCRL.HHZ. 2009-12-19T09:01:34.80 0.6 undecidable manual Sg 175 55.5999 0.289 47
IV.STR4.BHZ. 2009-12-19T09:01:34.73 0.3 undecidable manual Pg 11 111.8991 -0.587 59
IV.SOI.EHZ. 2009-12-19T09:01:33.44 0.3 undecidable manual Pg 71 99.8223 -0.048 69
MN.CEL.HHZ. 2009-12-19T09:01:32.81 0.3 undecidable manual Pg 56 96.2259 -0.135 69
IV.MPAZ.HHE. 2009-12-19T09:01:32.79 0.3 undecidable manual Pg 78 92.3409 0.434 64
IV.IACL.HHN. 2009-12-19T09:01:32.25 0.3 undecidable manual Pg 327 99.2229 -1.144 47
IV.HAVL.HHN. 2009-12-19T09:01:31.83 0.3 undecidable manual Pg 172 92.241 -0.499 64
IV.RESU.HHN. 2009-12-19T09:01:31.99 0.3 undecidable manual Pg 260 81.8514 1.214 48
IV.GIB.HHE. 2009-12-19T09:01:31.00 0.3 undecidable manual Pg 286 86.1471 -0.415 65
IV.RAFF.HHZ. 2009-12-19T09:01:30.72 0.1 undecidable manual Pg 221 82.251 -0.101 94
IV.GALF.HHE. 2009-12-19T09:01:30.64 0.6 undecidable manual Sg 258 36.6411 0.739 43
IV.SBPO.HHE. 2009-12-19T09:01:29.50 10.0 undecidable manual Pg 0 0 0
IV.CSLB.SHZ. 2009-12-19T09:01:29.83 0.3 undecidable manual Pg 282 82.0512 -0.972 53
IV.MMME.HHE. 2009-12-19T09:01:29.44 0.6 undecidable manual Sg 55 29.748 1.064 36
IV.ILLI.HHZ. 2009-12-19T09:01:29.26 0.3 undecidable manual Pg 358 73.5708 -0.273 69
IV.CIGN.HHN. 2009-12-19T09:01:29.59 10.0 undecidable manual Pg 0 0 0
IV.IVPL.HHN. 2009-12-19T09:01:28.01 0.3 undecidable manual Pg 0 65.8896 -0.374 69
IV.ECNV.HHN. 2009-12-19T09:01:28.71 1.0 undecidable manual Sg 228 30.9468 0.085 26
IV.HVZN.HHZ. 2009-12-19T09:01:28.31 0.3 undecidable manual Pg 199 70.7736 -0.802 59
IV.MSRU.HHZ. 2009-12-19T09:01:28.90 0.1 undecidable manual Pg 41 70.8735 -0.233 94
IV.SSY.HHN. 2009-12-19T09:01:28.65 0.3 undecidable manual Pg 173 69.8745 -0.325 69
IV.MTTG.HHZ. 2009-12-19T09:01:28.82 0.1 undecidable manual Pg 69 68.0763 0.11 96
IV.HCRL.HHZ. 2009-12-19T09:01:26.39 0.1 undecidable manual Pg 175 55.5999 -0.492 92
IV.ECNV.HHN. 2009-12-19T09:01:24.06 0.1 undecidable manual Pg 228 30.9468 0.576 92
IV.MMME.HHE. 2009-12-19T09:01:23.22 0.3 undecidable manual Pg 55 29.748 -0.119 78
IV.GALF.HHE. 2009-12-19T09:01:23.70 0.3 undecidable manual Pg 258 36.6411 -0.522 70
IV.ESLN.HHZ. 2009-12-19T09:01:20.91 0.1 undecidable manual Pg 180 9.879 -0.499 100
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