Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 3.3 on date 26-02-2015 and time 09:30:38 (UTC) in region Stretto di Messina (Reggio di Calabria, Messina)

A magnitude ML 3.3 earthquake occured in region: Stretto di Messina (Reggio di Calabria, Messina), on

  • 26-02-2015 09:30:38 (UTC)
  • 26-02-2015 10:30:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.3290, 15.6160 at 90 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Scilla RC 12 4964 4964
Villa San Giovanni RC 12 13784 18748
Campo Calabro RC 13 4536 23284
Fiumara RC 15 1018 24302
Messina ME 16 238439 262741
San Roberto RC 17 1750 264491
Bagnara Calabra RC 17 10255 274746
Calanna RC 19 934 275680
Villafranca Tirrena ME 19 8584 284264

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km NE of Messina (238439 inhabitants)
25 Km N of Reggio di Calabria (183035 inhabitants)
89 Km NE of Acireale (52622 inhabitants)
94 Km SW of Lamezia Terme (70714 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
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 3.3 2015-02-26
09:30:38		 38.3292 15.6157 90 2015-10-19
09:27:21		 Bollettino Sismico Italiano INGV 17273321
Reviewed
Rev100 		ML 3.3 2015-02-26
09:30:38		 38.3162 15.6197 89 2015-02-26
09:43:45		 Sala Sismica INGV-Roma 17250381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2015-02-26 09:30:38 ± 0.18
Latitude 38.3292 ± 0.0090
Longitude 15.6157 ± 0.0138
Depth (km) 90 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 17273321

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1022
Semi-minor axis of confidence ellipse (meter) 942
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 124
Circular confidence region, given by single value of horizontal uncertainty (meter) 1020.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 45
Number of associated phases, regardless of their use for origin computation 54
Number of defining phases 54
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.43
Epicentral distance of station closest to the epicenter (degree) 0.16817
Epicentral distance of station farthest from the epicenter (degree) 1.86250
Number of stations at which the event was observed 35
Number of stations from which data was used for origin computation 35
Magnitudes information

ML:3.3

Field Value
Value 3.3
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 17250381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2015-02-26 09:43:43

ML:3.3

Field Value
Value 3.3
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 17273321
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-02-27 14:26:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SIRI.HHE. 2015-02-26T09:31:30.86 1.0 undecidable manual S 6 206.7375 107 -0.86 11
MN.CUC.HHE. 2015-02-26T09:31:26.63 0.3 undecidable manual S 5 185.4699 110 -0.75 40
IV.HMDC.HHZ. 2015-02-26T09:31:23.94 0.1 undecidable manual S 206 168.7089 112 -0.05 71
IV.HAVL.HHZ. 2015-02-26T09:31:21.35 0.1 undecidable manual S 196 158.0196 113 -0.52 67
IV.HAGA.HHZ. 2015-02-26T09:31:14.05 0.3 undecidable manual S 199 122.6883 120 -1.01 45
IV.HLNI.HHZ. 2015-02-26T09:31:14.89 0.1 undecidable manual S 211 126.7731 119 -0.94 61
IV.MSFR.HHZ. 2015-02-26T09:31:10.36 0.1 undecidable manual S 250 95.1381 128 0.22 84
IV.GRI.EHZ. 2015-02-26T09:31:09.36 0.1 undecidable manual S 52 88.6446 130 0.3 83
IV.SIRI.HHE. 2015-02-26T09:31:08.86 0.6 undecidable manual P 6 206.7375 107 -0.24 28
IV.MGR.HHE. 2015-02-26T09:31:08.20 0.6 undecidable manual P 358 200.6436 108 -0.19 29
IV.MUCR.HHZ. 2015-02-26T09:31:07.45 0.1 undecidable manual S 244 72.0723 137 1 68
IV.PLAC.HHZ. 2015-02-26T09:31:06.87 0.1 undecidable manual S 79 72.7716 136 0.31 86
IV.HPAC.HHZ. 2015-02-26T09:31:06.74 1.0 negative manual P 196 186.8685 109 -0.01 16
MN.CUC.HHE. 2015-02-26T09:31:06.35 0.6 undecidable manual P 5 185.4699 110 -0.24 31
IV.SALB.HHZ. 2015-02-26T09:31:06.85 0.3 undecidable manual P 20 182.8836 110 0.56 44
IV.HMDC.HHZ. 2015-02-26T09:31:04.42 0.6 negative manual P 206 168.7089 112 -0.21 34
IV.RAFF.HHZ. 2015-02-26T09:31:04.76 0.3 undecidable manual P 222 164.7129 112 0.58 48
IV.AIO.HHZ. 2015-02-26T09:31:04.63 0.3 undecidable manual S 220 51.9036 147 0.88 55
IV.NOV.HHZ. 2015-02-26T09:31:04.71 0.1 undecidable manual S 231 53.502 146 0.77 77
IV.T0702.EHZ. 2015-02-26T09:31:03.18 0.3 undecidable manual P 14 159.618 113 -0.41 51
IV.SOI.EHZ. 2015-02-26T09:31:03.34 0.1 undecidable manual S 126 47.619 149 0.08 94
IV.TDS.HHZ. 2015-02-26T09:31:03.13 0.3 undecidable manual P 23 160.2174 113 -0.54 49
IV.MEU.SHZ. 2015-02-26T09:31:02.28 0.3 undecidable manual P 207 151.6371 114 -0.41 53
IV.HAVL.HHZ. 2015-02-26T09:31:02.91 0.1 negative manual P 196 158.0196 113 -0.5 68
MN.CEL.HHZ. 2015-02-26T09:31:01.06 0.1 undecidable manual S 107 25.4523 162 -0.21 96
IV.GMB.BHZ. 2015-02-26T09:31:01.46 0.1 undecidable manual S 134 25.752 162 0.16 96
IV.JOPP.HHZ. 2015-02-26T09:31:01.22 0.3 undecidable manual S 37 38.7279 154 -1.12 50
IV.MILZ.HHZ. 2015-02-26T09:31:00.68 0.3 undecidable manual S 259 34.0437 157 -1.24 47
IV.SSY.HHZ. 2015-02-26T09:31:00.65 0.1 negative manual P 200 138.3615 117 -0.55 71
IV.MSCL.HHZ. 2015-02-26T09:31:00.08 0.3 undecidable manual S 125 18.6702 167 -0.81 61
IV.MPNC.HHZ. 2015-02-26T09:31:00.81 0.3 undecidable manual S 229 30.5472 159 -0.83 58
IV.HLNI.HHZ. 2015-02-26T09:30:59.42 0.1 negative manual P 211 126.7731 119 -0.5 74
IV.IACL.HHE. 2015-02-26T09:30:58.13 0.1 undecidable manual P 282 111.7992 123 -0.2 81
IV.HAGA.HHZ. 2015-02-26T09:30:58.91 0.1 undecidable manual P 199 122.6883 120 -0.57 73
IV.MSFR.HHZ. 2015-02-26T09:30:57.13 0.6 negative manual P 250 95.1381 128 0.5 40
IV.EPZF.HHZ. 2015-02-26T09:30:56.82 0.3 undecidable manual P 230 86.7465 131 0.99 49
IV.GRI.EHZ. 2015-02-26T09:30:56.46 0.6 undecidable manual P 52 88.6446 130 0.45 40
IV.PLAC.HHZ. 2015-02-26T09:30:55.07 0.1 negative manual P 79 72.7716 136 0.5 82
IV.MUCR.HHZ. 2015-02-26T09:30:55.08 0.3 positive manual P 244 72.0723 137 0.57 61
IV.EPOZ.HHZ. 2015-02-26T09:30:55.83 0.1 negative manual P 207 81.9513 133 0.45 82
IV.IVPL.HHZ. 2015-02-26T09:30:53.24 0.1 positive manual P 276 55.5 145 0.04 94
IV.NOV.HHZ. 2015-02-26T09:30:53.72 0.1 negative manual P 231 53.502 146 0.66 81
IV.IST3.HHZ. 2015-02-26T09:30:53.55 0.1 positive manual P 327 61.8936 141 -0.13 91
IV.MPAZ.HHZ. 2015-02-26T09:30:53.47 0.1 negative manual P 141 53.9016 145 0.38 88
IV.SOI.EHZ. 2015-02-26T09:30:53.00 0.1 negative manual P 126 47.619 149 0.34 89
IV.AIO.HHZ. 2015-02-26T09:30:53.60 0.1 negative manual P 220 51.9036 147 0.66 81
IV.MCSR.HHZ. 2015-02-26T09:30:52.65 0.1 negative manual P 229 44.622 151 0.17 93
IV.MTTG.HHZ. 2015-02-26T09:30:52.61 0.1 negative manual P 168 36.9297 155 0.57 86
IV.MSCL.HHZ. 2015-02-26T09:30:51.24 0.1 positive manual P 125 18.6702 167 -0.05 100
IV.GMB.BHZ. 2015-02-26T09:30:51.78 0.6 undecidable manual P 134 25.752 162 0.25 47
IV.MPNC.HHZ. 2015-02-26T09:30:51.48 0.1 negative manual P 229 30.5472 159 -0.25 94
IV.JOPP.HHZ. 2015-02-26T09:30:51.83 0.1 negative manual P 37 38.7279 154 -0.3 92
MN.CEL.HHZ. 2015-02-26T09:30:51.53 0.1 negative manual P 107 25.4523 162 0.01 100
IV.MILZ.HHZ. 2015-02-26T09:30:51.67 0.1 negative manual P 259 34.0437 157 -0.22 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.AIO.HHE. ML:3.2 0.00157 0.6 AML other m 2015-02-26T09:31:05.61
IV.AIO.HHN. ML:3.3 0.0017549999999999998 1.48 AML other m 2015-02-26T09:31:06.93
MN.CEL.HHN. ML:3.2 0.00195 0.18 AML other m 2015-02-26T09:31:01.30
MN.CEL.HNN. ML:3.2 0.00155 0.2 AML other m 2015-02-26T09:31:01.31
MN.CEL.HHE. ML:3.3 0.002165 0.56 AML other m 2015-02-26T09:31:01.05
MN.CEL.HNE. ML:3.2 0.0018199999999999998 0.56 AML other m 2015-02-26T09:31:01.05
IV.EPOZ.HHN. ML:3.1 0.0009195 1.14 AML other m 2015-02-26T09:30:57.71
IV.EPOZ.HHE. ML:3.1 0.0008515 0.92 AML other m 2015-02-26T09:31:16.37
IV.GMB.BHN. ML:3.8 0.0071449999999999994 0.2 AML other m 2015-02-26T09:31:02.98
IV.GMB.BHE. ML:4.0 0.010375 0.2 AML other m 2015-02-26T09:31:02.50
IV.GRI.EHN. ML:2.8 0.0004685 0.6 AML other m 2015-02-26T09:31:11.39
IV.GRI.EHE. ML:2.9 0.0005475 1.48 AML other m 2015-02-26T09:31:10.15
IV.HAGA.HHE. ML:3.4 0.0012900000000000001 0.26 AML other m 2015-02-26T09:31:14.26
IV.HAGA.HHN. ML:3.3 0.001085 0.66 AML other m 2015-02-26T09:31:14.56
IV.HLNI.HHE. ML:3.3 0.0009599999999999999 0.1 AML other m 2015-02-26T09:31:15.54
IV.HLNI.HHN. ML:3.1 0.0006734999999999999 0.84 AML other m 2015-02-26T09:31:15.39
IV.HMDC.HHN. ML:3.2 0.0005 1.56 AML other m 2015-02-26T09:31:26.55
IV.HMDC.HHE. ML:3.1 0.00039400000000000004 1.12 AML other m 2015-02-26T09:31:26.02
IV.HPAC.HHN. ML:3.5 0.0008485000000000001 1.58 AML other m 2015-02-26T09:31:28.04
IV.HPAC.HHE. ML:3.6 0.001006 1.12 AML other m 2015-02-26T09:31:29.88
IV.IST3.HHN. ML:3.8 0.0056 0.14 AML other m 2015-02-26T09:31:05.47
IV.IST3.HHE. ML:3.6 0.00387 1.36 AML other m 2015-02-26T09:31:06.54
IV.JOPP.HHE. ML:3.4 0.002515 0.4 AML other m 2015-02-26T09:31:02.48
IV.JOPP.HHN. ML:3.5 0.0035299999999999997 0.16 AML other m 2015-02-26T09:31:02.70
IV.MCSR.HHE. ML:3.8 0.00683 0.3 AML other m 2015-02-26T09:31:06.47
IV.MCSR.HHN. ML:4.0 0.010135 0.28 AML other m 2015-02-26T09:31:06.62
IV.MILZ.HHE. ML:3.7 0.005900000000000001 1.04 AML other m 2015-02-26T09:31:01.24
IV.MILZ.HHN. ML:3.7 0.005705 0.48 AML other m 2015-02-26T09:31:01.35
IV.MPAZ.HHN. ML:3.0 0.00108 0.76 AML other m 2015-02-26T09:31:08.90
IV.MPAZ.HHE. ML:3.0 0.001039 0.44 AML other m 2015-02-26T09:31:10.48
IV.MPNC.HHE. ML:3.7 0.005359999999999999 1.4 AML other m 2015-02-26T09:31:02.50
IV.MPNC.HHN. ML:3.7 0.005195 1.1 AML other m 2015-02-26T09:31:01.32
IV.MSCL.HHN. ML:3.5 0.00377 0.14 AML other m 2015-02-26T09:31:00.91
IV.MSCL.HHE. ML:3.6 0.004939999999999999 0.16 AML other m 2015-02-26T09:31:01.09
IV.MSFR.HHE. ML:2.5 0.00020850000000000003 1.02 AML other m 2015-02-26T09:31:13.55
IV.MSFR.HHN. ML:2.6 0.00025550000000000003 1.4 AML other m 2015-02-26T09:31:10.87
IV.MTTG.HHN. ML:3.1 0.0012900000000000001 0.7 AML other m 2015-02-26T09:31:05.16
IV.MTTG.HHE. ML:2.8 0.0006559999999999999 0.7 AML other m 2015-02-26T09:31:05.65
IV.MUCR.HHE. ML:3.4 0.002145 0.34 AML other m 2015-02-26T09:31:07.98
IV.MUCR.HHN. ML:3.3 0.001535 0.52 AML other m 2015-02-26T09:31:11.26
IV.NOV.HHE. ML:3.4 0.002345 0.78 AML other m 2015-02-26T09:31:06.53
IV.NOV.HHN. ML:3.4 0.0022750000000000005 0.42 AML other m 2015-02-26T09:31:07.15
IV.PLAC.HHE. ML:3.2 0.001285 1.02 AML other m 2015-02-26T09:31:08.92
IV.PLAC.HHN. ML:3.0 0.0008300000000000001 0.32 AML other m 2015-02-26T09:31:07.14
IV.PLAC.HNN. ML:3.2 0.0012250000000000002 1 AML other m 2015-02-26T09:31:08.93
IV.PLAC.HNE. ML:3.0 0.0007735000000000001 0.32 AML other m 2015-02-26T09:31:07.14
IV.SOI.EHN. ML:2.9 0.0008415 0.46 AML other m 2015-02-26T09:31:05.44
IV.SOI.EHE. ML:2.8 0.000665 0.52 AML other m 2015-02-26T09:31:05.82
IV.SSY.HHE. ML:3.1 0.0006314999999999999 0.16 AML other m 2015-02-26T09:31:18.41
IV.SSY.HHN. ML:3.5 0.0015400000000000001 0.74 AML other m 2015-02-26T09:31:19.72
IV.TDS.HHE. ML:2.6 0.000157 0.72 AML other m 2015-02-26T09:31:22.32
IV.TDS.HHN. ML:2.5 0.00011915000000000001 1.24 AML other m 2015-02-26T09:31:23.16
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