Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.9 on date 31-05-2018 and time 05:04:35 (UTC) in region Costa Calabra nord occidentale (Cosenza)

A magnitude ML 2.9 earthquake occured in region: Costa Calabra nord occidentale (Cosenza), on

  • 31-05-2018 05:04:35 (UTC)
  • 31-05-2018 07:04:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.6030, 15.6650 at 271 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
Diamante CS 16 5329 5329
Belvedere Marittimo CS 17 9371 14700

Municipalities with at least 50000 inhabitants

An earthquake occurred to
61 Km NW of Cosenza (67546 inhabitants)
90 Km NW 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
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 2.9 2018-05-31
05:04:35		 39.6032 15.6653 271 2019-04-24
14:50:43		 Bollettino Sismico Italiano INGV 57501181
Reviewed
Rev100 		ML 2.9 2018-05-31
05:04:35		 39.3843 15.1472 257 2018-05-31
05:15:43		 Sala Sismica INGV-Roma 57392591
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-05-31 05:04:35 ± 0.3
Latitude 39.6032 ± 0.0144
Longitude 15.6653 ± 0.0420
Depth (km) 271 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 57501181

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3492
Semi-minor axis of confidence ellipse (meter) 899
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 94
Circular confidence region, given by single value of horizontal uncertainty (meter) 3490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 131
Number of associated phases, regardless of their use for origin computation 56
Number of defining phases 56
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.19965
Epicentral distance of station farthest from the epicenter (degree) 1.67634
Number of stations at which the event was observed 37
Number of stations from which data was used for origin computation 37
Magnitudes information

ML:2.9

Field Value
Value 2.9
Uncertainty 0.3
Num. used stations 50
Type of magnitude ML
Reference to an origin 57501181
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-03-13 11:46:41

ML:2.9

Field Value
Value 2.9
Uncertainty 0.3
Num. used stations 50
Type of magnitude ML
Reference to an origin 57392591
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-05-31 05:15:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NOV.HHZ. 2018-05-31T05:05:50.19 1.0 undecidable manual S 195 180.5859 145 1.47 10
IV.AIO.HHE. 2018-05-31T05:05:50.15 0.6 undecidable manual S 192 184.8705 144 0.9 26
IV.MTTG.HHZ. 2018-05-31T05:05:48.07 0.6 undecidable manual S 179 177.489 146 -0.27 34
IV.MPNC.HHN. 2018-05-31T05:05:45.79 0.6 undecidable manual S 190 163.8138 148 -0.92 29
IV.PLAC.HHZ. 2018-05-31T05:05:44.11 0.6 undecidable manual S 152 144.2445 151 -0.45 38
IV.LTRZ.EHZ. 2018-05-31T05:05:43.20 0.6 undecidable manual S 41 147.9408 150 -1.75 19
MN.CEL.HHZ. 2018-05-31T05:05:43.84 0.6 undecidable manual S 172 150.2385 150 -1.36 25
IV.LADO.EHE. 2018-05-31T05:05:42.94 0.6 undecidable manual S 107 117.993 156 0.93 33
MN.TIP.HHZ. 2018-05-31T05:05:41.06 0.6 undecidable manual S 116 104.8173 158 0.17 44
IV.GRI.EHZ. 2018-05-31T05:05:41.64 0.6 undecidable manual S 143 108.2139 157 0.47 41
IV.SERS.HHZ. 2018-05-31T05:05:41.20 0.6 undecidable manual S 125 108.0141 157 0.05 44
IV.JOPP.HHZ. 2018-05-31T05:05:40.44 0.6 undecidable manual S 170 112.0989 157 -1.06 32
IV.SALB.HHZ. 2018-05-31T05:05:39.12 0.6 undecidable manual S 62 65.49 166 0.86 38
IV.TDS.HHZ. 2018-05-31T05:05:39.25 0.6 undecidable manual S 84 57.7977 168 1.37 30
IV.SPS2.HHZ. 2018-05-31T05:05:38.58 0.6 undecidable manual S 121 67.2771 166 0.22 46
IV.CAR1.HHZ. 2018-05-31T05:05:37.12 0.6 undecidable manual S 129 60.7947 167 -0.9 37
MN.CUC.HHZ. 2018-05-31T05:05:37.93 0.6 undecidable manual S 16 45.2214 170 0.58 44
IV.GRIS.HNE. 2018-05-31T05:05:36.52 0.6 undecidable manual S 46 22.1556 175 -0.2 50
IV.CET2.HHZ. 2018-05-31T05:05:36.04 0.6 undecidable manual S 108 26.0517 174 -0.76 42
IV.AIO.HHE. 2018-05-31T05:05:18.67 0.3 undecidable manual P 192 184.8705 144 0.63 44
IV.NOV.HHZ. 2018-05-31T05:05:18.47 0.3 undecidable manual P 195 180.5859 145 0.73 43
IV.MUCR.HHE. 2018-05-31T05:05:18.31 0.6 undecidable manual P 202 186.0693 144 0.18 33
IV.MTTG.HHZ. 2018-05-31T05:05:17.64 0.3 undecidable manual P 179 177.489 146 0.12 52
IV.IVPL.HHZ. 2018-05-31T05:05:16.14 0.6 undecidable manual P 204 148.3404 150 0.56 36
IV.SOI.EHZ. 2018-05-31T05:05:16.94 0.3 undecidable manual P 169 172.9935 146 -0.26 52
IV.MPNC.HHN. 2018-05-31T05:05:16.82 0.6 undecidable manual P 190 163.8138 148 0.24 36
IV.MILZ.HHN. 2018-05-31T05:05:15.67 0.6 undecidable manual P 194 152.4363 150 -0.17 39
IV.AMUR.HHZ. 2018-05-31T05:05:15.85 0.3 undecidable manual P 28 165.0126 147 -0.81 45
IV.PLAC.HHZ. 2018-05-31T05:05:15.03 0.1 undecidable manual P 152 144.2445 151 -0.31 78
IX.SNR3.HHE. 2018-05-31T05:05:14.67 0.6 undecidable manual P 342 131.868 153 0.06 42
IV.LTRZ.EHZ. 2018-05-31T05:05:14.56 0.1 undecidable manual P 41 147.9408 150 -1 60
IV.MCRV.HHZ. 2018-05-31T05:05:14.81 0.3 undecidable manual P 342 137.4624 152 -0.12 62
IV.MCEL.HHZ. 2018-05-31T05:05:14.05 0.3 undecidable manual P 8 80.8635 163 1.83 32
MN.CEL.HHZ. 2018-05-31T05:05:14.91 0.3 undecidable manual P 172 150.2385 150 -0.79 49
IX.SRN3.HNE.02 2018-05-31T05:05:13.09 0.3 undecidable manual P 350 99.5226 159 0.12 67
IV.MIGL.HHZ. 2018-05-31T05:05:13.56 0.3 undecidable manual P 30 129.0708 154 -0.89 49
IV.JOPP.HHZ. 2018-05-31T05:05:13.07 0.1 undecidable manual P 170 112.0989 157 -0.5 80
IV.PIPA.HHZ. 2018-05-31T05:05:13.30 0.3 undecidable manual P 97 99.2229 159 0.34 64
IV.GRI.EHZ. 2018-05-31T05:05:13.65 0.1 undecidable manual P 143 108.2139 157 0.27 85
MN.TIP.HHZ. 2018-05-31T05:05:13.49 0.1 undecidable manual P 116 104.8173 158 0.27 85
IV.SERS.HHZ. 2018-05-31T05:05:13.65 0.1 undecidable manual P 125 108.0141 157 0.28 85
IX.PST3.HHZ. 2018-05-31T05:05:13.47 1.0 undecidable manual P 342 112.0989 157 -0.09 22
IV.LADO.EHE. 2018-05-31T05:05:13.89 0.1 undecidable manual P 107 117.993 156 0.03 87
IV.ORI.HHN. 2018-05-31T05:05:12.90 0.3 undecidable manual P 53 83.3499 162 0.59 61
IV.TDS.HHZ. 2018-05-31T05:05:12.46 0.3 undecidable manual P 84 57.7977 168 0.98 55
IV.CMPR.HHZ. 2018-05-31T05:05:12.37 0.3 undecidable manual P 339 85.0482 162 -0.01 70
IV.SALB.HHZ. 2018-05-31T05:05:12.06 0.1 undecidable manual P 62 65.49 166 0.36 90
IV.SLCN.HNZ. 2018-05-31T05:05:12.64 0.6 undecidable manual P 358 87.3459 161 0.18 45
IV.CAR1.HHZ. 2018-05-31T05:05:11.21 0.1 undecidable manual P 129 60.7947 167 -0.35 91
IV.MGR.HHZ. 2018-05-31T05:05:11.49 0.1 undecidable manual P 351 60.0954 167 -0.05 97
IV.SPS2.HHZ. 2018-05-31T05:05:11.66 0.3 undecidable manual P 121 67.2771 166 -0.09 71
IV.BULG.HHN. 2018-05-31T05:05:11.56 0.3 undecidable manual P 335 58.0974 167 0.07 73
MN.CUC.HHZ. 2018-05-31T05:05:11.14 0.3 undecidable manual P 16 45.2214 170 -0.03 75
IV.MTSN.HHZ. 2018-05-31T05:05:11.76 0.3 undecidable manual P 6 73.9704 164 -0.21 69
IV.CET2.HHZ. 2018-05-31T05:05:10.64 0.1 undecidable manual P 108 26.0517 174 -0.21 100
IV.GRIS.HNE. 2018-05-31T05:05:10.52 0.3 undecidable manual P 46 22.1556 175 -0.29 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MCRV.HHE. ML:2.4 0.00002855 0.42 AML other m 2018-05-31T05:05:15.71
IV.MCRV.HHN. ML:2.5 0.0000334 0.5 AML other m 2018-05-31T05:05:18.14
IV.CET2.HHN. ML:3.4 0.000363 1.18 AML other m 2018-05-31T05:05:37.34
IV.CET2.HHE. ML:3.4 0.0004355 0.68 AML other m 2018-05-31T05:05:37.18
IV.CAR1.HHE. ML:3.7 0.000818 0.46 AML other m 2018-05-31T05:05:38.42
MN.CUC.HHE. ML:2.6 0.0000623 0.5 AML other m 2018-05-31T05:05:38.38
IV.CAR1.HNE. ML:3.6 0.000633 0.44 AML other m 2018-05-31T05:05:38.41
MN.CUC.HHN. ML:2.5 0.0000482 1.42 AML other m 2018-05-31T05:05:38.75
IV.CAR1.HNN. ML:3.7 0.0007755 0.7 AML other m 2018-05-31T05:05:38.41
IV.CAR1.HHN. ML:3.5 0.0005455 0.76 AML other m 2018-05-31T05:05:38.77
IV.SPS2.HHE. ML:2.8 0.00009275 0.48 AML other m 2018-05-31T05:05:39.25
IV.SPS2.HHN. ML:2.8 0.00009365 0.36 AML other m 2018-05-31T05:05:40.47
IV.CMPR.HHN. ML:2.3 0.000031849999999999995 0.86 AML other m 2018-05-31T05:05:40.35
IV.CMPR.HHE. ML:2.2 0.000023650000000000002 0.7 AML other m 2018-05-31T05:05:40.37
IV.TDS.HHE. ML:2.6 0.0000585 0.46 AML other m 2018-05-31T05:05:40.70
IV.TDS.HHN. ML:2.5 0.0000471 1.16 AML other m 2018-05-31T05:05:41.26
IV.JOPP.HHN. ML:3.2 0.00020800000000000001 0.64 AML other m 2018-05-31T05:05:41.74
IV.JOPP.HHE. ML:3.2 0.00022099999999999998 0.36 AML other m 2018-05-31T05:05:41.82
IV.SERS.HHN. ML:3.0 0.000122 0.76 AML other m 2018-05-31T05:05:41.45
MN.TIP.HHN. ML:2.7 0.0000701 1.08 AML other m 2018-05-31T05:05:41.33
IV.MIGL.HHE. ML:3.1 0.000143 1.06 AML other m 2018-05-31T05:05:42.40
MN.TIP.HHE. ML:2.6 0.00006065 0.98 AML other m 2018-05-31T05:05:42.99
IV.PIPA.HHN. ML:3.2 0.000191 0.26 AML other m 2018-05-31T05:05:42.83
IV.GRI.EHE. ML:3.0 0.000138 1.54 AML other m 2018-05-31T05:05:43.03
IV.SERS.HNE. ML:3.0 0.0001325 0.78 AML other m 2018-05-31T05:05:43.46
IV.MCEL.HHE. ML:2.7 0.0000644 1.54 AML other m 2018-05-31T05:05:43.09
IV.SERS.HNN. ML:2.8 0.0000816 0.66 AML other m 2018-05-31T05:05:43.60
MN.TIP.HNE. ML:2.7 0.0000653 0.94 AML other m 2018-05-31T05:05:43.52
IV.MCEL.HNN. ML:3.4 0.00039150000000000003 0.84 AML other m 2018-05-31T05:05:43.17
IV.MCEL.HNE. ML:3.4 0.0003325 0.8 AML other m 2018-05-31T05:05:43.59
IV.MCEL.HHN. ML:3.0 0.000157 0.86 AML other m 2018-05-31T05:05:44.14
IV.PIPA.HHE. ML:3.1 0.000183 0.28 AML other m 2018-05-31T05:05:44.58
IV.GRI.EHN. ML:3.1 0.00016 1.54 AML other m 2018-05-31T05:05:45.97
IV.PLAC.HHN. ML:2.9 0.00008765 1.4 AML other m 2018-05-31T05:05:45.88
IV.PLAC.HHE. ML:3.2 0.00016949999999999997 0.32 AML other m 2018-05-31T05:05:46.02
IV.GMB.BHE. ML:3.5 0.000376 0.68 AML other m 2018-05-31T05:05:46.23
IV.AMUR.HHN. ML:2.6 0.00004405 0.84 AML other m 2018-05-31T05:05:46.35
IV.AMUR.HHE. ML:2.7 0.000049500000000000004 0.88 AML other m 2018-05-31T05:05:46.39
IV.GMB.BHN. ML:3.7 0.000518 0.08 AML other m 2018-05-31T05:05:46.47
IV.MTSN.HHE. ML:2.5 0.00005145 1.38 AML other m 2018-05-31T05:05:46.17
IV.MIGL.HHN. ML:3.1 0.00016199999999999998 1.1 AML other m 2018-05-31T05:05:47.17
IV.MTSN.HHN. ML:2.5 0.000043049999999999996 0.58 AML other m 2018-05-31T05:05:47.15
MN.CEL.HHN. ML:2.8 0.00008195 1.28 AML other m 2018-05-31T05:05:47.64
MN.CEL.HHE. ML:2.9 0.00008410000000000001 0.8 AML other m 2018-05-31T05:05:47.82
IV.SERS.HHE. ML:2.8 0.00008185000000000001 0.54 AML other m 2018-05-31T05:05:48.27
IV.MTTG.HHE. ML:2.9 0.0000824 1.18 AML other m 2018-05-31T05:05:49.15
IV.SOI.EHN. ML:2.7 0.000052199999999999995 0.42 AML other m 2018-05-31T05:05:50.50
MN.TIP.HNN. ML:2.7 0.00006275 0.7 AML other m 2018-05-31T05:05:50.18
IV.MTTG.HHN. ML:3.0 0.00010250000000000001 0.42 AML other m 2018-05-31T05:05:50.84
IV.SOI.EHE. ML:2.5 0.000030350000000000002 1.24 AML other m 2018-05-31T05:05:52.95
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