Earthquake with magnitude of ML 3.1 on date 31-03-2014 and time 23:20:33 (Italy) in region Tirreno Meridionale (MARE)

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

  • 31-03-2014 21:20:33 (UTC)
  • 31-03-2014 23:20:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.8280, 15.6460 at 189 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
61 Km W of Lamezia Terme (70714 inhabitants)
71 Km N of Messina (238439 inhabitants)
74 Km SW of Cosenza (67546 inhabitants)
80 Km N of Reggio di Calabria (183035 inhabitants)
83 Km W of Catanzaro (90612 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 2014-03-31
21:20:33
38.8277 15.646 189 2015-09-21
09:35:11
Bollettino Sismico Italiano INGV 9221571
Reviewed
Rev100
ML 3.2 2014-03-31
21:20:33
38.8338 15.6317 190 2014-10-21
12:08:56
Sala Sismica INGV-Roma 6025491
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-03-31 21:20:33 ± 0.18
Latitude 38.8277 ± 0.0090
Longitude 15.6460 ± 0.0173
Depth (km) 189 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 9221571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1406
Semi-minor axis of confidence ellipse (meter) 796
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 120
Circular confidence region, given by single value of horizontal uncertainty (meter) 1410.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 85
Number of associated phases, regardless of their use for origin computation 57
Number of defining phases 57
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.28868
Epicentral distance of station farthest from the epicenter (degree) 1.68173
Number of stations at which the event was observed 42
Number of stations from which data was used for origin computation 42
Magnitudes information

ML:3.1

Field Value
Value 3.1
Uncertainty 0.3
Num. used stations 25
Type of magnitude ML
Reference to an origin 9221571
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2014-11-05 09:20:59

ML:3.2

Field Value
Value 3.2
Uncertainty 0.3
Num. used stations 25
Type of magnitude ML
Reference to an origin 6025491
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-03-31 21:33:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SALB.HHZ. 2014-03-31T21:21:27.18 1.0 undecidable manual S 27 130.9689 143 0.87 17
IV.MCPD.HHZ. 2014-03-31T21:21:24.72 1.0 undecidable manual S 226 111.6993 148 0.75 18
MN.TIP.HHZ. 2014-03-31T21:21:23.58 1.0 undecidable manual S 68 103.5186 150 0.53 20
IV.T0702.EHZ. 2014-03-31T21:21:23.14 0.6 undecidable manual S 21 106.0161 149 -0.18 43
IV.MTTG.HHZ. 2014-03-31T21:21:22.56 0.6 undecidable manual S 177 91.5417 153 0.75 37
IV.PLAC.HHZ. 2014-03-31T21:21:21.54 1.0 undecidable manual S 121 80.4639 156 0.77 19
IV.SOI.EHZ. 2014-03-31T21:21:21.73 1.0 undecidable manual S 157 90.8424 153 -0.02 23
IV.CET2.HHZ. 2014-03-31T21:21:20.69 0.3 undecidable manual S 19 82.1511 155 -0.24 67
IV.MILZ.HHE. 2014-03-31T21:21:20.10 0.6 undecidable manual S 210 71.4729 158 0.09 47
IV.MSCL.HHZ. 2014-03-31T21:21:19.86 0.6 undecidable manual S 169 67.2771 159 0.17 46
IV.MSRU.HHE. 2014-03-31T21:21:19.52 0.6 undecidable manual S 191 63.6918 160 0.1 47
MN.CEL.HHZ. 2014-03-31T21:21:19.34 0.6 undecidable manual S 161 66.4779 160 -0.29 46
IV.CAR1.HHZ. 2014-03-31T21:21:19.12 0.6 undecidable manual S 46 67.8765 159 -0.62 41
IV.MPNC.HHZ. 2014-03-31T21:21:19.99 0.6 undecidable manual S 199 79.7646 156 -0.72 39
IV.JOPP.HHZ. 2014-03-31T21:21:17.61 0.3 undecidable manual S 140 32.0457 170 -0.06 76
IV.CDRU.HHE. 2014-03-31T21:21:08.75 0.6 undecidable manual P 351 186.6687 133 0.14 33
IV.CRAC.EHE. 2014-03-31T21:21:07.92 0.6 undecidable manual P 21 185.0703 133 -0.54 30
IV.SLCN.HHE. 2014-03-31T21:21:07.34 0.6 undecidable manual P 360 173.2932 135 -0.07 36
IV.CMPR.HHE. 2014-03-31T21:21:07.21 0.6 undecidable manual P 350 167.9097 136 0.26 36
IV.MCEL.HHZ. 2014-03-31T21:21:06.96 0.3 undecidable manual P 5 166.611 136 0.12 55
IV.SCHR.EHZ. 2014-03-31T21:21:06.15 0.3 undecidable manual P 13 156.5211 138 0.16 57
IV.BULG.HHZ. 2014-03-31T21:21:05.17 0.1 undecidable manual P 351 140.6481 141 0.46 76
IV.SIRI.HHE. 2014-03-31T21:21:05.35 0.3 undecidable manual P 7 151.4373 139 -0.22 58
IV.MGR.HHE. 2014-03-31T21:21:05.04 0.6 undecidable manual P 357 145.5432 140 -0.06 40
IV.MTSN.HHE. 2014-03-31T21:21:05.86 0.6 undecidable manual P 3 159.8178 138 -0.4 36
IV.SALB.HHZ. 2014-03-31T21:21:04.35 0.3 undecidable manual P 27 130.9689 143 0.37 59
IV.EPOZ.HHZ. 2014-03-31T21:21:04.35 0.6 undecidable manual P 197 134.2656 143 0.13 41
IV.LADO.EHZ. 2014-03-31T21:21:03.41 0.1 negative manual P 66 125.4744 145 -0.18 83
IV.IACL.HHE. 2014-03-31T21:21:03.12 0.6 undecidable manual P 254 116.4945 147 0.17 42
MN.CUC.HHZ. 2014-03-31T21:21:03.59 0.3 undecidable manual P 6 130.1697 144 -0.33 59
MN.TIP.HHZ. 2014-03-31T21:21:02.38 0.1 negative manual P 68 103.5186 150 0.28 85
IV.T0702.EHZ. 2014-03-31T21:21:02.12 0.1 negative manual P 21 106.0161 149 -0.14 87
IV.MUCR.HHZ. 2014-03-31T21:21:02.35 0.3 undecidable manual P 218 109.9122 148 -0.16 65
IV.AIO.HHE. 2014-03-31T21:21:02.22 0.6 undecidable manual P 201 101.5206 150 0.24 43
IV.MMN.HHE. 2014-03-31T21:21:02.93 0.6 undecidable manual P 14 121.5894 146 -0.37 40
IV.NOV.HHZ. 2014-03-31T21:21:02.15 0.1 negative manual P 207 99.123 151 0.32 85
IV.CELI.HHE. 2014-03-31T21:21:02.43 0.1 negative manual P 49 97.9242 151 0.68 76
IV.MCPD.HHZ. 2014-03-31T21:21:02.43 0.3 undecidable manual P 226 111.6993 148 -0.2 64
IV.ILLI.HHZ. 2014-03-31T21:21:01.13 0.1 negative manual P 235 73.8705 158 0.68 80
IV.IFIL.HHZ. 2014-03-31T21:21:01.93 0.3 undecidable manual P 253 97.2249 151 0.22 65
IV.MTTG.HHZ. 2014-03-31T21:21:01.47 0.1 negative manual P 177 91.5417 153 0.08 90
IV.SOI.EHZ. 2014-03-31T21:21:01.17 0.1 negative manual P 157 90.8424 153 -0.17 89
IV.SERS.HHZ. 2014-03-31T21:21:01.77 0.1 negative manual P 75 92.8404 152 0.31 86
IV.MCSR.HHE. 2014-03-31T21:21:01.29 0.6 undecidable manual P 203 92.0412 153 -0.12 45
IV.GMB.BHZ. 2014-03-31T21:21:00.49 0.3 undecidable manual P 168 74.8695 157 -0.01 71
IV.MPNC.HHZ. 2014-03-31T21:21:00.22 0.1 negative manual P 199 79.7646 156 -0.53 84
IV.GRI.EHZ. 2014-03-31T21:21:00.55 0.1 negative manual P 90 66.8775 159 0.41 89
IV.PLAC.HHZ. 2014-03-31T21:21:00.86 0.1 negative manual P 121 80.4639 156 0.08 92
IV.CET2.HHZ. 2014-03-31T21:21:00.77 0.1 negative manual P 19 82.1511 155 -0.1 92
IV.CAR1.HHZ. 2014-03-31T21:21:00.02 0.1 negative manual P 46 67.8765 159 -0.16 93
IV.IVPL.HHZ. 2014-03-31T21:21:00.44 0.1 negative manual P 229 76.368 157 -0.14 92
IV.MILZ.HHE. 2014-03-31T21:20:59.84 0.3 undecidable manual P 210 71.4729 158 -0.5 65
IV.MSCL.HHZ. 2014-03-31T21:20:59.87 0.1 negative manual P 169 67.2771 159 -0.29 91
IV.MSRU.HHE. 2014-03-31T21:20:59.55 0.1 negative manual P 191 63.6918 160 -0.46 89
MN.CEL.HHZ. 2014-03-31T21:20:59.84 0.1 negative manual P 161 66.4779 160 -0.28 92
IV.IST3.HHE. 2014-03-31T21:20:59.24 0.6 undecidable manual P 265 36.0417 169 0.16 49
IV.JOPP.HHZ. 2014-03-31T21:20:58.84 0.1 negative manual P 140 32.0457 170 -0.15 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BULG.HHE. ML:2.8 0.00012034999999999998 0.68 AML other m 2014-03-31T21:21:31.37
IV.BULG.HHN. ML:2.9 0.0001575 1.3 AML other m 2014-03-31T21:21:31.35
IV.CAR1.HHN. ML:3.5 0.0009695 0.38 AML other m 2014-03-31T21:21:24.60
IV.CAR1.HNN. ML:3.6 0.001071 0.38 AML other m 2014-03-31T21:21:24.79
IV.CAR1.HNE. ML:3.4 0.0007015 0.36 AML other m 2014-03-31T21:21:20.76
IV.CAR1.HHE. ML:3.5 0.0008675 1.08 AML other m 2014-03-31T21:21:21.29
MN.CEL.HHE. ML:3.0 0.0002735 0.34 AML other m 2014-03-31T21:21:01.25
MN.CEL.HHN. ML:3.0 0.00026700000000000004 0.8 AML other m 2014-03-31T21:21:21.64
MN.CEL.HNN. ML:2.9 0.0002155 0.8 AML other m 2014-03-31T21:21:21.65
MN.CEL.HNE. ML:2.9 0.00022849999999999997 1.58 AML other m 2014-03-31T21:21:22.18
IV.CET2.HHE. ML:3.8 0.001845 0.34 AML other m 2014-03-31T21:21:22.62
IV.CET2.HHN. ML:4.0 0.002785 0.28 AML other m 2014-03-31T21:21:22.46
MN.CUC.HHN. ML:2.7 0.00010900000000000002 0.8 AML other m 2014-03-31T21:21:26.96
MN.CUC.HHE. ML:2.8 0.0001615 0.44 AML other m 2014-03-31T21:21:27.56
IV.GMB.BHE. ML:3.8 0.001825 0.8 AML other m 2014-03-31T21:21:23.70
IV.GMB.BHN. ML:3.8 0.0017749999999999999 0.2 AML other m 2014-03-31T21:21:23.32
IV.GRI.EHE. ML:3.2 0.0005175000000000001 0.24 AML other m 2014-03-31T21:21:22.84
IV.GRI.EHN. ML:3.1 0.0003735 0.24 AML other m 2014-03-31T21:21:23.06
IV.IFIL.HHN. ML:2.7 0.00013350000000000002 0.68 AML other m 2014-03-31T21:21:04.00
IV.IFIL.HHE. ML:3.3 0.0005115 0.82 AML other m 2014-03-31T21:21:25.64
IV.ILLI.HHN. ML:4.0 0.0031550000000000003 0.6 AML other m 2014-03-31T21:21:24.48
IV.ILLI.HHE. ML:3.9 0.0024349999999999997 0.82 AML other m 2014-03-31T21:21:33.75
IV.IST3.HHN. ML:3.4 0.0008965 0.8 AML other m 2014-03-31T21:21:10.82
IV.IST3.HHE. ML:3.3 0.0006385000000000001 0.56 AML other m 2014-03-31T21:21:13.68
IV.IVPL.HHN. ML:3.5 0.0009445 0.38 AML other m 2014-03-31T21:21:30.24
IV.IVPL.HHE. ML:3.5 0.0008900000000000001 0.66 AML other m 2014-03-31T21:21:27.50
IV.JOPP.HHE. ML:3.0 0.000326 0.1 AML other m 2014-03-31T21:21:19.34
IV.JOPP.HHN. ML:3.2 0.000546 0.12 AML other m 2014-03-31T21:21:19.43
IV.LADO.EHE. ML:3.1 0.0003105 0.26 AML other m 2014-03-31T21:21:28.69
IV.LADO.EHN. ML:3.1 0.0002685 1.56 AML other m 2014-03-31T21:21:29.80
IV.MCEL.HHN. ML:2.5 0.00006185 1.04 AML other m 2014-03-31T21:21:37.62
IV.MCEL.HHE. ML:2.6 0.00006765 0.72 AML other m 2014-03-31T21:21:37.26
IV.MPNC.HHN. ML:3.2 0.000499 1.2 AML other m 2014-03-31T21:21:22.81
IV.MPNC.HHE. ML:3.2 0.0004525 0.74 AML other m 2014-03-31T21:21:22.07
IV.MSCL.HHN. ML:3.6 0.0010545 1.28 AML other m 2014-03-31T21:21:00.30
IV.MSCL.HHE. ML:3.6 0.0012549999999999998 0.12 AML other m 2014-03-31T21:21:00.74
IV.MTTG.HHN. ML:3.2 0.000474 0.36 AML other m 2014-03-31T21:21:25.27
IV.MTTG.HHE. ML:3.2 0.00040800000000000005 0.42 AML other m 2014-03-31T21:21:24.87
IV.MUCR.HHN. ML:2.7 0.000136 1.08 AML other m 2014-03-31T21:21:31.68
IV.MUCR.HHE. ML:2.8 0.00017449999999999999 0.36 AML other m 2014-03-31T21:21:29.90
IV.NOV.HHN. ML:3.1 0.0003185 1.24 AML other m 2014-03-31T21:21:25.57
IV.NOV.HHE. ML:3.2 0.0004285 1.58 AML other m 2014-03-31T21:21:27.32
IV.PLAC.HNN. ML:3.2 0.0004345 0.3 AML other m 2014-03-31T21:21:22.92
IV.PLAC.HHE. ML:3.2 0.0004455 0.28 AML other m 2014-03-31T21:21:22.91
IV.PLAC.HHN. ML:3.0 0.000305 0.88 AML other m 2014-03-31T21:21:22.65
IV.PLAC.HNE. ML:3.0 0.000305 0.7 AML other m 2014-03-31T21:21:22.65
IV.SALB.HHN. ML:3.0 0.000209 0.74 AML other m 2014-03-31T21:21:28.84
IV.SALB.HHE. ML:3.1 0.0003085 0.84 AML other m 2014-03-31T21:21:31.71
IV.SCHR.EHE. ML:2.6 0.00007705 1.3 AML other m 2014-03-31T21:21:33.90
IV.SCHR.EHN. ML:2.6 0.00007825 1.18 AML other m 2014-03-31T21:21:34.16
IV.SERS.HNE. ML:3.3 0.0005035 0.32 AML other m 2014-03-31T21:21:25.46
IV.SERS.HHE. ML:3.3 0.0005114999999999999 0.26 AML other m 2014-03-31T21:21:24.72
IV.SERS.HNN. ML:3.3 0.0005209999999999999 1.18 AML other m 2014-03-31T21:21:24.73
IV.SERS.HHN. ML:3.3 0.0005495 0.3 AML other m 2014-03-31T21:21:25.46
IV.SOI.EHE. ML:2.7 0.00015050000000000003 0.42 AML other m 2014-03-31T21:21:03.72
IV.SOI.EHN. ML:2.8 0.000168 0.68 AML other m 2014-03-31T21:21:28.41
MN.TIP.HHE. ML:3.0 0.000258 1.54 AML other m 2014-03-31T21:21:26.53
MN.TIP.HHN. ML:3.0 0.00023050000000000002 1.58 AML other m 2014-03-31T21:21:26.32
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