Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 3.1 on date 25-12-2014 and time 10:14:17 (UTC) in region Tirreno Meridionale (MARE)

A magnitude ML 3.1 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 25-12-2014 10:14:17 (UTC)
  • 25-12-2014 11:14:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.4900, 15.4610 at 163 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km N of Messina (238439 inhabitants)
45 Km NW of Reggio di Calabria (183035 inhabitants)
92 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 3.1 2014-12-25
10:14:17		 38.4903 15.4612 163 2015-09-21
09:40:11		 Bollettino Sismico Italiano INGV 19417221
Reviewed
Rev100 		ML 3.1 2014-12-25
10:14:17		 38.4893 15.4573 168 2014-12-25
10:29:43		 Sala Sismica INGV-Roma 15716711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-12-25 10:14:17 ± 0.22
Latitude 38.4903 ± 0.0135
Longitude 15.4612 ± 0.0207
Depth (km) 163 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 19417221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1999
Semi-minor axis of confidence ellipse (meter) 758
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 126
Circular confidence region, given by single value of horizontal uncertainty (meter) 2000.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 54
Number of associated phases, regardless of their use for origin computation 69
Number of defining phases 67
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.44
Epicentral distance of station closest to the epicenter (degree) 0.22933
Epicentral distance of station farthest from the epicenter (degree) 1.78875
Number of stations at which the event was observed 49
Number of stations from which data was used for origin computation 47
Magnitudes information

ML:3.1

Field Value
Value 3.1
Uncertainty 0.3
Num. used stations 1
Type of magnitude ML
Reference to an origin 19417221
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-05-29 23:01:45

ML:3.1

Field Value
Value 3.1
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 15716711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-12-25 10:29:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MEU.SHZ. 2014-12-25T10:15:12.00 0.3 undecidable manual S 200 162.7149 132 0.89 46
IV.TDS.HHZ. 2014-12-25T10:15:09.40 0.6 undecidable manual S 30 150.1386 135 0.25 39
IV.CELI.HHE. 2014-12-25T10:15:08.20 1.0 undecidable manual S 41 135.6642 138 1.21 14
IV.T0702.EHZ. 2014-12-25T10:15:08.40 0.3 undecidable manual S 21 146.6421 135 -0.22 61
IV.SERS.HHZ. 2014-12-25T10:15:05.70 0.1 undecidable manual S 60 122.1888 141 0.6 76
IV.CET2.HHZ. 2014-12-25T10:15:04.80 0.1 undecidable manual S 20 122.7882 141 -0.38 82
IV.CAR1.HHZ. 2014-12-25T10:15:02.60 0.1 undecidable manual S 37 106.6155 145 -0.46 84
IV.GRI.EHZ. 2014-12-25T10:15:01.70 0.6 undecidable manual S 66 90.8424 149 0.5 42
IV.MUCR.HHZ. 2014-12-25T10:15:00.10 0.3 undecidable manual S 226 71.2731 155 0.89 56
IV.PLAC.HHZ. 2014-12-25T10:15:00.70 0.1 undecidable manual S 93 84.9483 151 0.13 92
IV.MPAZ.HHZ. 2014-12-25T10:14:59.50 0.3 undecidable manual S 141 76.2681 153 -0.18 70
IV.AIO.HHZ. 2014-12-25T10:14:59.10 0.3 undecidable manual S 199 60.8946 158 0.78 60
IV.MTTG.HHZ. 2014-12-25T10:14:59.00 0.3 undecidable manual S 159 57.8976 159 0.91 57
IV.NOV.HHZ. 2014-12-25T10:14:58.94 0.6 undecidable manual S 209 58.5969 159 0.8 40
IV.GMB.BHZ. 2014-12-25T10:14:57.90 0.1 undecidable manual S 138 48.0186 163 0.51 91
IV.MPNC.HHZ. 2014-12-25T10:14:57.10 0.1 undecidable manual S 194 39.3273 166 0.23 99
IV.ATN.BHZ. 2014-12-25T10:14:56.20 0.3 undecidable manual S 180 36.741 166 -0.54 70
IV.JOPP.HHZ. 2014-12-25T10:14:56.30 0.1 undecidable manual S 71 39.0276 166 -0.56 92
IV.MILZ.HHZ. 2014-12-25T10:14:56.00 0.3 undecidable manual S 220 31.4463 168 -0.49 71
IV.MSRU.HHZ. 2014-12-25T10:14:55.50 0.1 undecidable manual S 171 25.4523 171 -0.75 87
IV.MTSN.HHE. 2014-12-25T10:14:52.03 0.1 positive manual P 7 198.5568 126 -0.07 64
IV.SCHR.EHE. 2014-12-25T10:14:52.98 3.0 undecidable manual P 15 196.6587 1.03 0
IV.SIRI.HHE. 2014-12-25T10:14:51.31 0.1 positive manual P 10 190.8645 128 -0.03 68
IV.SALB.HHE. 2014-12-25T10:14:50.39 0.1 negative manual P 26 171.5949 131 0.92 57
IV.BULG.HHE. 2014-12-25T10:14:50.41 0.3 undecidable manual P 358 176.2902 130 0.49 50
IV.MGR.HHE. 2014-12-25T10:14:50.70 0.1 positive manual P 2 182.8836 129 0.14 69
IV.T0701.HNE. 2014-12-25T10:14:50.51 1.0 undecidable manual P 19 175.1913 130 0.7 15
MN.CUC.HHE. 2014-12-25T10:14:49.18 0.1 undecidable manual P 10 169.497 131 -0.1 75
IV.ALJA.HHE. 2014-12-25T10:14:49.68 0.1 positive manual P 242 170.1963 131 0.34 71
IV.LADO.EHZ. 2014-12-25T10:14:48.06 0.1 negative manual P 56 157.9197 133 -0.15 78
IV.PIPA.HHZ. 2014-12-25T10:14:48.81 0.6 undecidable manual P 46 160.7169 133 0.35 37
IV.MEU.SHZ. 2014-12-25T10:14:48.28 0.1 negative manual P 200 162.7149 132 -0.36 72
IV.PETRA.HHZ. 2014-12-25T10:14:47.18 0.6 positive manual P 239 138.1617 137 0.7 36
IV.TDS.HHZ. 2014-12-25T10:14:47.48 0.1 negative manual P 30 150.1386 135 -0.03 83
IV.T0702.EHZ. 2014-12-25T10:14:47.19 0.1 positive manual P 21 146.6421 135 -0.01 84
IV.CAGR.HHE. 2014-12-25T10:14:47.03 0.1 positive manual P 221 127.7721 140 1.42 52
IV.GALF.HHE. 2014-12-25T10:14:46.00 0.6 undecidable manual P 222 116.4945 142 1.27 29
IV.CELI.HHE. 2014-12-25T10:14:46.83 0.1 negative manual P 41 135.6642 138 0.56 75
IV.ECNV.HHE. 2014-12-25T10:14:46.34 0.1 positive manual P 214 118.8921 142 1.43 53
IV.SERS.HHZ. 2014-12-25T10:14:45.51 0.1 negative manual P 60 122.1888 141 0.34 82
IV.HAGA.HHZ. 2014-12-25T10:14:45.16 0.1 negative manual P 191 136.3635 138 -1.16 57
IV.HLNI.HHZ. 2014-12-25T10:14:45.76 0.1 positive manual P 202 136.7631 137 -0.59 74
IV.GIB.HHE. 2014-12-25T10:14:45.68 0.1 positive manual P 247 136.7631 137 -0.68 71
IV.CET2.HHZ. 2014-12-25T10:14:45.11 0.1 negative manual P 20 122.7882 141 -0.1 86
IV.EMSG.HHE. 2014-12-25T10:14:44.14 3.0 undecidable manual P 213 87.4458 1.35 0
IV.MNO.SHZ. 2014-12-25T10:14:43.88 0.3 positive manual P 227 91.1421 149 0.94 53
IV.EPOZ.HHZ. 2014-12-25T10:14:43.02 0.3 undecidable manual P 195 93.8394 148 -0.1 69
IV.CAR1.HHZ. 2014-12-25T10:14:43.74 0.1 negative manual P 37 106.6155 145 -0.25 87
IV.EPZF.HHE. 2014-12-25T10:14:43.69 0.6 undecidable manual P 216 90.7425 149 0.78 38
IV.GRI.EHZ. 2014-12-25T10:14:43.20 0.6 undecidable manual P 66 90.8424 149 0.28 44
IV.PLAC.HHZ. 2014-12-25T10:14:42.68 0.1 negative manual P 93 84.9483 151 0.13 93
IV.MSFR.HHE. 2014-12-25T10:14:42.81 0.1 negative manual P 237 91.1421 149 -0.13 91
IV.SOI.EHZ. 2014-12-25T10:14:41.57 0.1 negative manual P 132 69.375 155 -0.1 96
IV.MTTG.HHZ. 2014-12-25T10:14:41.12 0.1 negative manual P 159 57.8976 159 0 100
IV.IFIL.HHE. 2014-12-25T10:14:41.92 0.3 undecidable manual P 276 77.367 153 -0.18 70
IV.MPAZ.HHZ. 2014-12-25T10:14:41.93 0.1 negative manual P 141 76.2681 153 -0.11 94
IV.NOV.HHZ. 2014-12-25T10:14:41.54 0.1 negative manual P 209 58.5969 159 0.39 93
IV.MUCR.HHZ. 2014-12-25T10:14:41.44 0.6 undecidable manual P 226 71.2731 155 -0.33 46
IV.AIO.HHZ. 2014-12-25T10:14:41.37 0.1 negative manual P 199 60.8946 158 0.11 98
IV.IST3.HHZ. 2014-12-25T10:14:40.56 0.6 negative manual P 330 39.627 165 0.13 51
IV.GMB.BHZ. 2014-12-25T10:14:40.51 0.1 negative manual P 138 48.0186 163 -0.21 98
IV.MCSR.HHZ. 2014-12-25T10:14:40.71 0.1 negative manual P 203 51.3153 161 -0.14 98
IV.ILLI.HHE. 2014-12-25T10:14:40.84 0.3 undecidable manual P 264 44.8218 164 0.24 73
IV.MPNC.HHZ. 2014-12-25T10:14:39.67 0.1 negative manual P 194 39.3273 166 -0.75 84
IV.MSCL.HHE. 2014-12-25T10:14:39.91 0.1 negative manual P 135 40.5261 165 -0.55 91
IV.MSRU.HHZ. 2014-12-25T10:14:39.30 0.1 negative manual P 171 25.4523 171 -0.76 86
IV.ATN.BHZ. 2014-12-25T10:14:39.49 0.1 negative manual P 180 36.741 166 -0.85 81
IV.JOPP.HHZ. 2014-12-25T10:14:39.98 0.1 negative manual P 71 39.0276 166 -0.43 95
IV.MILZ.HHZ. 2014-12-25T10:14:39.45 0.1 negative manual P 220 31.4463 168 -0.75 85
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MSRU.HHN. ML:2.8 0.00030400000000000007 1.1 AML other m 2014-12-25T10:14:40.80
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