Earthquake with magnitude of ML 3.5 on date 25-03-2011 and time 17:18:11 (Italy) in region Costa Ionica Crotonese (Crotone)

A magnitude ML 3.5 earthquake occured in region: Costa Ionica Crotonese (Crotone), on

  • 25-03-2011 16:18:11 (UTC)
  • 25-03-2011 17:18:11 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.8650, 16.9460 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
Botricello CZ 11 5220 5220
Isola di Capo Rizzuto KR 17 17643 22863
Sellia Marina CZ 18 7513 30376
Cropani CZ 18 4778 35154
Cutro KR 19 10541 45695

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km SW of Crotone (62178 inhabitants)
31 Km E of Catanzaro (90612 inhabitants)
56 Km E of Lamezia Terme (70714 inhabitants)
76 Km SE of Cosenza (67546 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 2011-03-25
16:18:11
38.865 16.946 2 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1186139
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-03-25 16:18:11 ± 0.3
Latitude 38.8650 ± 0.0081
Longitude 16.9460 ± 0.0162
Depth (km) 2 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1186139

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1246
Semi-minor axis of confidence ellipse (meter) 962
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 302
Circular confidence region, given by single value of horizontal uncertainty (meter) 1664.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 215
Number of associated phases, regardless of their use for origin computation 104
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.81
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 2.22582
Number of stations at which the event was observed 81
Number of stations from which data was used for origin computation 26
Magnitude information

ML:3.5

Field Value
Value 3.5
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 1186139
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 23:10:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RM33.EHN. 2011-03-25T16:19:28.79 10.0 undecidable manual Pn 0 0 0
IV.VVLD.HHZ. 2011-03-25T16:19:18.32 10.0 undecidable manual Pn 0 0 0
IV.ATVO.HHN. 2011-03-25T16:19:17.00 10.0 undecidable manual Pn 0 0 0
IV.MOCO.HHE. 2011-03-25T16:19:15.14 10.0 undecidable manual Pn 0 0 0
IV.GIUL.HHE. 2011-03-25T16:19:14.59 10.0 undecidable manual Pn 0 0 0
IV.VAGA.HHN. 2011-03-25T16:19:14.27 10.0 undecidable manual Sn 0 0 0
IV.SGRT.HHN. 2011-03-25T16:19:14.35 10.0 undecidable manual Pn 0 0 0
IV.PSB1.HHN. 2011-03-25T16:19:13.78 10.0 undecidable manual Pn 0 0 0
IV.CERA.HHZ. 2011-03-25T16:19:13.53 10.0 undecidable manual Sn 0 0 0
IV.PAOL.HHE. 2011-03-25T16:19:11.06 10.0 undecidable manual Sn 0 0 0
IV.CORL.HHN. 2011-03-25T16:19:10.52 10.0 undecidable manual Sn 0 0 0
IV.CERA.HHZ. 2011-03-25T16:19:10.01 10.0 undecidable manual Pn 0 0 0
IV.VAGA.HHN. 2011-03-25T16:19:10.94 10.0 undecidable manual Pn 0 0 0
IV.RESU.HHE. 2011-03-25T16:19:09.01 10.0 undecidable manual Sn 0 0 0
IV.PTRJ.HHN. 2011-03-25T16:19:08.05 10.0 undecidable manual Pn 0 0 0
IV.SGTA.HHE. 2011-03-25T16:19:07.76 10.0 undecidable manual Pn 0 0 0
IV.MMGO.SHZ. 2011-03-25T16:19:07.71 10.0 undecidable manual Pn 0 0 0
IV.CORL.HHN. 2011-03-25T16:19:05.75 10.0 undecidable manual Pn 0 0 0
IV.PAOL.HHE. 2011-03-25T16:19:03.29 10.0 undecidable manual Pn 0 0 0
IV.PALZ.HHZ. 2011-03-25T16:19:03.48 10.0 undecidable manual Sn 0 0 0
IV.VULT.HHZ. 2011-03-25T16:19:02.31 10.0 undecidable manual Pn 0 0 0
IV.MPG.SHZ. 2011-03-25T16:19:02.25 10.0 undecidable manual Pn 0 0 0
IV.RAFF.HHZ. 2011-03-25T16:19:01.23 10.0 undecidable manual Sn 0 0 0
IV.CAFE.HHZ. 2011-03-25T16:19:01.40 10.0 undecidable manual Sn 0 0 0
IV.ALJA.HHN. 2011-03-25T16:19:01.07 10.0 undecidable manual Pn 0 0 0
IV.SNAL.HHZ. 2011-03-25T16:19:01.51 10.0 undecidable manual Sn 0 0 0
IV.MRVN.HHN. 2011-03-25T16:19:00.52 10.0 undecidable manual Sn 0 0 0
IV.RESU.HHE. 2011-03-25T16:18:59.54 10.0 undecidable manual Pn 0 0 0
IV.HVZN.HHZ. 2011-03-25T16:18:59.52 10.0 undecidable manual Pn 0 0 0
IV.SNAL.HHZ. 2011-03-25T16:18:58.09 10.0 undecidable manual Pn 0 0 0
IV.CAFE.HHZ. 2011-03-25T16:18:58.11 10.0 undecidable manual Pn 0 0 0
IV.SOLUN.HHZ. 2011-03-25T16:18:58.54 10.0 undecidable manual Pn 0 0 0
IV.PALZ.HHZ. 2011-03-25T16:18:57.33 10.0 undecidable manual Pn 0 0 0
IV.PLLN.SHE. 2011-03-25T16:18:57.25 10.0 undecidable manual Pn 0 0 0
IV.GIB.HHE. 2011-03-25T16:18:56.68 10.0 undecidable manual Pn 0 0 0
IV.RAFF.HHZ. 2011-03-25T16:18:55.68 10.0 undecidable manual Pn 0 0 0
IV.MCRV.HHZ. 2011-03-25T16:18:54.47 10.0 undecidable manual Pn 0 0 0
IV.MRLC.HHZ. 2011-03-25T16:18:53.45 10.0 undecidable manual Pn 0 0 0
IV.ACER.HHZ. 2011-03-25T16:18:53.61 10.0 undecidable manual Pn 0 0 0
BA.PZUN.HHZ. 2011-03-25T16:18:53.56 10.0 undecidable manual Pn 0 0 0
IV.MRVN.HHN. 2011-03-25T16:18:53.15 10.0 undecidable manual Pn 0 0 0
IV.CAGR.HHZ. 2011-03-25T16:18:52.90 10.0 undecidable manual Pn 0 0 0
IV.GALF.HHZ. 2011-03-25T16:18:52.18 10.0 undecidable manual Pn 0 0 0
IV.AMUR.HHZ. 2011-03-25T16:18:52.81 10.0 undecidable manual Sg 0 0 0
IV.ECNV.HHE. 2011-03-25T16:18:51.15 10.0 undecidable manual Pn 0 0 0
IV.MNO.SHN. 2011-03-25T16:18:51.08 10.0 undecidable manual Sn 0 0 0
HL.KEK.BHZ. 2011-03-25T16:18:51.27 10.0 undecidable manual Pn 0 0 0
IV.MSCL.HHZ. 2011-03-25T16:18:50.01 1.0 undecidable manual Sg 235 122.3886 1.038 15
IV.MNO.SHN. 2011-03-25T16:18:49.08 10.0 undecidable manual Pn 0 0 0
IV.HLNI.HHZ. 2011-03-25T16:18:49.00 0.3 undecidable manual Pg 228 247.0638 -1.646 17
IV.MESG.HHZ. 2011-03-25T16:18:49.81 10.0 undecidable manual Sg 0 0 0
IV.HCRL.HHZ. 2011-03-25T16:18:48.40 0.3 undecidable manual Pg 224 242.2797 -1.649 18
IV.NOCI.HHZ. 2011-03-25T16:18:48.18 10.0 undecidable manual Pg 0 0 0
IV.CDRU.HHN. 2011-03-25T16:18:48.95 10.0 undecidable manual Pg 0 0 0
IV.AMUR.HHZ. 2011-03-25T16:18:47.36 10.0 undecidable manual Pg 0 0 0
GE.MATE.HHZ. 2011-03-25T16:18:47.11 10.0 undecidable manual Pg 0 0 0
IV.HAVL.HHN. 2011-03-25T16:18:47.38 10.0 undecidable manual Pg 0 0 0
IV.IACL.HHZ. 2011-03-25T16:18:47.27 10.0 undecidable manual Pg 0 0 0
MN.CEL.HHZ. 2011-03-25T16:18:47.94 1.0 undecidable manual Sg 234 113.1978 1.415 13
IV.MCEL.HHZ. 2011-03-25T16:18:47.43 10.0 undecidable manual Sg 0 0 0
IV.CMPR.HHZ. 2011-03-25T16:18:47.24 10.0 undecidable manual Pg 0 0 0
IV.SLCN.HHZ. 2011-03-25T16:18:47.77 10.0 undecidable manual Pg 0 0 0
IV.MESG.HHZ. 2011-03-25T16:18:46.58 10.0 undecidable manual Pg 0 0 0
IV.MCEL.HHZ. 2011-03-25T16:18:45.00 10.0 undecidable manual Pg 0 0 0
IV.LTRZ.EHZ. 2011-03-25T16:18:45.43 10.0 undecidable manual Pg 0 0 0
IV.MTSN.HHZ. 2011-03-25T16:18:45.00 10.0 undecidable manual Pg 0 0 0
IV.MIGL.HHZ. 2011-03-25T16:18:44.01 0.6 undecidable manual Pg 348 197.7576 -0.49 29
IV.IFIL.EHZ. 2011-03-25T16:18:44.68 10.0 undecidable manual Pg 0 0 0
IV.CRAC.EHN. 2011-03-25T16:18:42.13 10.0 undecidable manual Pg 0 0 0
IV.NOV.HHZ. 2011-03-25T16:18:42.50 0.6 undecidable manual Pg 240 182.5839 -0.069 34
IV.ILLI.HHZ. 2011-03-25T16:18:42.02 10.0 undecidable manual Pg 0 0 0
IV.BULG.HHZ. 2011-03-25T16:18:42.98 0.6 undecidable manual Pg 316 190.1652 -0.577 29
IV.SIRI.HHZ. 2011-03-25T16:18:42.31 0.3 undecidable manual Pg 328 172.7937 1.239 35
IV.MMME.HHZ. 2011-03-25T16:18:42.67 0.3 undecidable manual Pg 235 179.5869 0.552 46
IV.SCHR.EHZ. 2011-03-25T16:18:41.37 0.3 undecidable manual Pg 334 165.7119 1.4 33
MN.CUC.HHE. 2011-03-25T16:18:39.74 0.6 undecidable manual Pg 323 158.3193 0.904 30
IV.MILZ.HHZ. 2011-03-25T16:18:39.16 0.3 undecidable manual Pg 247 162.615 -0.338 53
IV.STR3.BHE. 2011-03-25T16:18:38.25 10.0 undecidable manual Pg 0 0 0
IV.STR4.BHZ. 2011-03-25T16:18:38.06 10.0 undecidable manual Pg 0 0 0
IV.MPNC.HHZ. 2011-03-25T16:18:38.58 0.3 undecidable manual Pg 241 159.618 -0.454 52
IV.ORI.HHZ. 2011-03-25T16:18:37.55 0.6 undecidable manual Pg 342 138.2616 1.808 19
IV.CAR1.HHZ. 2011-03-25T16:18:36.31 0.3 undecidable manual Sg 305 76.5678 -0.425 64
IV.MMN.HHE. 2011-03-25T16:18:36.51 0.6 undecidable manual Pg 325 140.2485 0.462 37
IV.MSRU.HHZ. 2011-03-25T16:18:35.67 0.3 undecidable manual Pg 242 141.3474 -0.553 54
IV.PIPA.HHN. 2011-03-25T16:18:35.32 0.6 undecidable manual Sg 351 69.6747 0.408 44
IV.MPAZ.HHZ. 2011-03-25T16:18:34.74 1.0 undecidable manual Pg 219 129.9699 0.272 20
IV.PLAC.HHE. 2011-03-25T16:18:34.12 0.6 undecidable manual Sg 224 63.6918 0.819 38
IV.MSCL.HHZ. 2011-03-25T16:18:33.12 0.3 undecidable manual Pg 235 122.3886 -0.179 62
IV.SALB.HHZ. 2011-03-25T16:18:33.50 0.3 undecidable manual Pg 336 123.4875 0.026 64
MN.CEL.HHZ. 2011-03-25T16:18:31.69 0.3 undecidable manual Pg 234 113.1978 -0.195 63
IV.LADO.HHZ. 2011-03-25T16:18:28.13 0.1 undecidable manual Sg 4 46.62 0.057 98
IV.JOPP.HHN. 2011-03-25T16:18:28.91 0.3 undecidable manual Pg 253 96.126 -0.335 63
IV.BSSO.HHE. 2011-03-25T16:18:28.79 10.0 undecidable manual Pg 0 0 0
IV.GRI.EHZ. 2011-03-25T16:18:27.59 0.6 undecidable manual Sg 264 45.621 -0.159 48
IV.CAR1.HHZ. 2011-03-25T16:18:25.68 0.1 undecidable manual Pg 305 76.5678 -0.553 83
IV.PLAC.HHE. 2011-03-25T16:18:24.42 0.1 undecidable manual Pg 224 63.6918 0.171 93
IV.PIPA.HHN. 2011-03-25T16:18:24.53 0.3 undecidable manual Pg 351 69.6747 -0.65 60
MN.TIP.HHE. 2011-03-25T16:18:24.60 0.1 undecidable manual Sg 335 38.4282 -0.649 85
IV.SERS.HHE. 2011-03-25T16:18:22.15 0.1 undecidable manual Sg 311 29.1486 0.105 100
IV.LADO.HHZ. 2011-03-25T16:18:21.12 0.1 undecidable manual Pg 4 46.62 -0.11 97
IV.GRI.EHZ. 2011-03-25T16:18:21.31 0.1 undecidable manual Pg 264 45.621 0.264 94
MN.TIP.HHE. 2011-03-25T16:18:19.75 0.1 undecidable manual Pg 335 38.4282 0.147 98
IV.SERS.HHE. 2011-03-25T16:18:18.18 0.1 undecidable manual Pg 311 29.1486 0.429 93
IV.ESLN.HHN. 2011-03-25T16:18:07.84 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