Earthquake with magnitude of ML 2.8 on date 20-03-2021 and time 16:40:34 (UTC) in region 3 km E Praia a Mare (CS)

A magnitude ML 2.8 earthquake occured in region: 3 km E Praia a Mare (CS), on

  • 20-03-2021 16:40:34 (UTC)
  • 20-03-2021 17:40:34 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 39.8930, 15.8160 at 279 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
Praia a Mare CS 3 6725 6725
Aieta CS 4 823 7548
Tortora CS 5 6187 13735
San Nicola Arcella CS 5 1957 15692
Papasidero CS 8 734 16426
Santa Domenica Talao CS 9 1263 17689
Scalea CS 10 10913 28602
Orsomarso CS 13 1265 29867
Maratea PZ 14 5139 35006
Laino Castello CS 14 848 35854
Mormanno CS 15 3027 38881
Laino Borgo CS 15 1921 40802
Trecchina PZ 15 2316 43118
Santa Maria del Cedro CS 16 4954 48072
Verbicaro CS 17 3056 51128
Lauria PZ 17 12919 64047
Castelluccio Inferiore PZ 18 2131 66178
Grisolia CS 19 2249 68427
Castelluccio Superiore PZ 19 824 69251
Nemoli PZ 19 1495 70746
Maierà CS 20 1224 71970

Municipalities with at least 50000 inhabitants

An earthquake occurred to
77 Km NW of Cosenza (67546 inhabitants)
83 Km S of Potenza (67122 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 2.8 2021-03-20
16:40:34
39.8927 15.8163 279 2021-07-12
16:55:08
Bollettino Sismico Italiano INGV 89494631
Reviewed
Rev100
ML 1.7 2021-03-20
16:40:59
40.0508 16.4103 47 2021-03-20
17:01:24
Sala Sismica INGV-Roma 88321161
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-20 16:40:34 ± 0.29
Latitude 39.8927 ± 0.0162
Longitude 15.8163 ± 0.0422
Depth (km) 279 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 89494631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3531
Semi-minor axis of confidence ellipse (meter) 632
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 88
Circular confidence region, given by single value of horizontal uncertainty (meter) 3530.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 113
Number of associated phases, regardless of their use for origin computation 70
Number of defining phases 60
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.41
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 2.79419
Number of stations at which the event was observed 54
Number of stations from which data was used for origin computation 44
Magnitudes information

ML:2.8

Field Value
Value 2.8
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 89494631
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-05-13 11:16:10

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 88321161
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-20 17:01:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MURB.HHZ. 2021-03-20T16:42:32.24 3.0 undecidable manual Sn -6.77 0
CR.ZAG.BHZ. 2021-03-20T16:42:29.52 3.0 undecidable manual P 2.2 0
GU.CANO.HHZ. 2021-03-20T16:42:27.65 3.0 undecidable manual P 3.31 0
IV.MSSA.HHZ. 2021-03-20T16:42:17.76 3.0 undecidable manual P 2.32 0
CR.STON.BHZ. 2021-03-20T16:42:13.48 3.0 undecidable manual Sn -4.13 0
IV.RIBO.EHZ.01 2021-03-20T16:42:10.50 3.0 positive manual P 1.742 0
IV.NARO.HHZ. 2021-03-20T16:41:53.74 3.0 undecidable manual P 4.61 0
IV.MTTG.HHZ. 2021-03-20T16:41:52.12 0.6 undecidable manual S 183 1.8904 142 -0.5 27
IV.MPNC.HHZ. 2021-03-20T16:41:49.91 0.6 undecidable manual S 192 1.7816 143 -1.13 22
MN.CEL.HHZ. 2021-03-20T16:41:47.23 0.6 undecidable manual S 178 1.6323 146 -1.74 17
TV.SF04.EHZ. 2021-03-20T16:41:45.19 3.0 positive manual P -2.55 0
IV.JOPP.HHZ. 2021-03-20T16:41:43.30 0.6 undecidable manual S 178 1.2860 152 -1.38 25
IV.SELL.HHZ. 2021-03-20T16:41:42.82 0.6 undecidable manual S 145 1.1044 155 0.08 42
IV.SERS.HHZ. 2021-03-20T16:41:42.43 0.6 undecidable manual S 142 1.0891 156 -0.17 42
IV.MC2.EHZ. 2021-03-20T16:41:41.19 3.0 undecidable manual P 2.25 0
MN.TIP.HHN. 2021-03-20T16:41:41.97 0.6 undecidable manual S 134 1.0171 157 0.06 43
IV.CELI.HHZ. 2021-03-20T16:41:40.65 0.6 undecidable manual S 132 0.7240 163 1.12 32
GE.MATE.HHZ. 2021-03-20T16:41:40.68 0.6 undecidable manual S 42 1.0144 157 -1.21 29
IV.MCEL.HHZ. 2021-03-20T16:41:39.61 0.6 undecidable manual S 359 0.4326 170 1.69 25
IV.ORI.HHZ. 2021-03-20T16:41:39.44 0.6 undecidable manual S 72 0.5108 168 1.16 33
IV.SCHR.EHZ. 2021-03-20T16:41:38.05 0.6 undecidable manual S 33 0.3651 171 0.39 46
MN.CUC.HHZ. 2021-03-20T16:41:37.06 0.6 undecidable manual S 360 0.1007 178 0 53
IV.MMN.HHN. 2021-03-20T16:41:36.98 0.6 undecidable manual S 91 0.1331 177 -0.11 52
IV.CET2.HHZ. 2021-03-20T16:41:36.90 0.6 undecidable manual S 164 0.3786 171 -0.81 40
IV.GRIS.HNE. 2021-03-20T16:41:36.88 0.6 undecidable manual S 169 0.1547 176 -0.24 50
IV.MMO1.EHZ. 2021-03-20T16:41:35.49 3.0 undecidable manual P -2.62 0
IV.SSY.HHZ. 2021-03-20T16:41:27.03 0.3 undecidable manual P 192 2.7942 130 -1.12 14
IV.HLNI.HHZ. 2021-03-20T16:41:26.22 0.3 undecidable manual P 196 2.6476 132 -0.41 20
IV.HCRL.HHZ. 2021-03-20T16:41:26.43 0.3 undecidable manual P 193 2.6791 132 -0.52 19
IV.GALF.HHZ. 2021-03-20T16:41:26.14 0.3 undecidable manual P 204 2.3877 135 2.12 10
IV.EMSG.HHZ. 2021-03-20T16:41:24.53 0.3 undecidable manual P 198 2.1773 138 2.51 8
IV.EPIT.HHZ. 2021-03-20T16:41:23.57 0.3 undecidable manual P 196 2.1629 138 1.69 18
IV.AIO.HHZ. 2021-03-20T16:41:21.28 0.3 undecidable manual P 193 1.9731 141 1.12 29
IV.MTTG.HHZ. 2021-03-20T16:41:19.94 0.3 undecidable manual P 183 1.8904 142 0.49 40
IV.SOI.EHZ. 2021-03-20T16:41:18.67 0.3 undecidable manual P 174 1.8274 143 -0.25 44
IV.MSAG.HHZ. 2021-03-20T16:41:18.13 0.1 undecidable manual P 2 1.8193 143 -0.72 51
IV.MPNC.HHZ. 2021-03-20T16:41:18.47 0.3 undecidable manual P 192 1.7816 143 -0.07 47
MN.CEL.HHZ. 2021-03-20T16:41:16.53 0.1 undecidable manual P 178 1.6323 146 -0.81 55
IV.SERS.HHZ. 2021-03-20T16:41:14.00 0.1 undecidable manual P 142 1.0891 156 0.34 80
IV.NOCI.HHZ. 2021-03-20T16:41:14.56 0.3 undecidable manual P 46 1.3058 152 -0.44 56
IV.JOPP.HHZ. 2021-03-20T16:41:14.31 0.1 undecidable manual P 178 1.2860 152 -0.56 73
OT.TAR1.HHZ. 2021-03-20T16:41:14.34 0.1 undecidable manual P 60 1.2869 152 -0.53 73
IV.SELL.HHZ. 2021-03-20T16:41:14.01 0.3 undecidable manual P 145 1.1044 155 0.26 61
IV.LADO.EHZ. 2021-03-20T16:41:13.72 0.1 undecidable manual P 124 1.0828 156 0.09 84
MN.TIP.HHN. 2021-03-20T16:41:13.63 0.1 undecidable manual P 134 1.0171 157 0.36 81
IV.AMUR.HHZ. 2021-03-20T16:41:13.89 0.1 undecidable manual P 30 1.1781 154 -0.29 79
IV.MCRV.HHZ. 2021-03-20T16:41:13.49 0.1 undecidable manual P 331 1.0171 157 0.22 84
IV.MRVN.HHZ. 2021-03-20T16:41:13.90 0.1 undecidable manual P 14 1.2024 154 -0.44 76
IV.PIPA.HHZ. 2021-03-20T16:41:12.74 0.1 undecidable manual P 118 0.8696 160 0.21 87
IV.SGO.HHE. 2021-03-20T16:41:12.35 0.1 undecidable manual P 330 0.7725 162 0.26 88
IV.CELI.HHZ. 2021-03-20T16:41:12.85 0.1 undecidable manual P 132 0.7240 163 0.95 69
GE.MATE.HHZ. 2021-03-20T16:41:12.74 0.1 undecidable manual P 42 1.0144 157 -0.52 78
IX.SRN3.HNE.02 2021-03-20T16:41:11.76 0.3 undecidable manual P 335 0.6529 165 0.13 69
IV.ORI.HHZ. 2021-03-20T16:41:11.69 0.1 undecidable manual P 72 0.5108 168 0.52 87
IV.MIGL.HHZ. 2021-03-20T16:41:11.95 0.3 undecidable manual P 34 0.8562 161 -0.51 61
IV.PTRP.HHZ. 2021-03-20T16:41:11.78 0.3 undecidable manual P 16 0.6556 165 0.14 69
IV.SLCN.HHZ. 2021-03-20T16:41:11.30 0.1 undecidable manual P 344 0.5162 168 0.11 96
IV.CDRU.HHE. 2021-03-20T16:41:11.99 0.1 undecidable manual P 327 0.7132 164 0.13 91
IV.MCEL.HHZ. 2021-03-20T16:41:11.52 0.1 undecidable manual P 359 0.4326 170 0.56 88
IX.PGN3.HHN.02 2021-03-20T16:41:11.48 0.3 undecidable manual P 359 0.6790 164 -0.25 67
IX.STN3.HNZ.02 2021-03-20T16:41:11.65 0.3 undecidable manual P 349 0.6493 165 0.03 71
IV.TDS.HHZ. 2021-03-20T16:41:11.97 0.1 undecidable manual P 120 0.4632 169 0.93 74
IV.CMPR.HHZ. 2021-03-20T16:41:11.40 0.1 undecidable manual P 317 0.5783 167 0.02 96
IV.GRIS.HNE. 2021-03-20T16:41:10.09 0.3 undecidable manual P 169 0.1547 176 -0.41 72
IV.SIRI.HHZ. 2021-03-20T16:41:10.52 0.3 undecidable manual P 8 0.2923 173 -0.16 74
MN.CUC.HHZ. 2021-03-20T16:41:10.18 0.1 undecidable manual P 360 0.1007 178 -0.28 100
IV.CET2.HHZ. 2021-03-20T16:41:10.45 0.1 undecidable manual P 164 0.3786 171 -0.39 92
IV.MGR.HHZ. 2021-03-20T16:41:10.66 0.1 undecidable manual P 321 0.3166 173 -0.06 100
IV.SCHR.EHZ. 2021-03-20T16:41:10.96 0.1 undecidable manual P 33 0.3651 171 0.15 98
IV.MMN.HHN. 2021-03-20T16:41:10.31 0.3 undecidable manual P 91 0.1331 177 -0.18 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SCHR.EHN. ML:2.5 0.000048711825 0.1376 AML other m 2021-03-20T16:41:10.80
IV.SIRI.HHE. ML:2.9 0.000125 0.6 AML other m 2021-03-20T16:41:12.38
MN.CUC.HHN. ML:2.5 0.0000504 0.82 AML other m 2021-03-20T16:41:12.93
IV.SCHR.EHE. ML:2.4 0.000041376129999999994 0.192 AML other m 2021-03-20T16:41:12.56
IV.SIRI.HHN. ML:3.0 0.00014450000000000002 1.02 AML other m 2021-03-20T16:41:12.15
IV.MGR.HHN. ML:2.7 0.0000798 1.34 AML other m 2021-03-20T16:41:12.71
IV.MGR.HHE. ML:2.6 0.00006275 0.26 AML other m 2021-03-20T16:41:12.92
MN.CUC.HHE. ML:2.6 0.00005341552 0.3232 AML other m 2021-03-20T16:41:13.42
IV.SLCN.HHE. ML:0.0 0.000121 1.14 AML other m 2021-03-20T16:41:13.91
IV.MCEL.HNN. ML:2.9 0.00011899999999999999 0.66 AML other m 2021-03-20T16:41:14.00
IV.CMPR.HHE. ML:2.6 0.000052802034999999996 0.3488 AML other m 2021-03-20T16:41:14.80
IV.CMPR.HHN. ML:2.6 0.000050154450000000006 0.3712 AML other m 2021-03-20T16:41:14.80
IV.MCEL.HNE. ML:3.1 0.0001685 0.48 AML other m 2021-03-20T16:41:15.06
IV.AMUR.HHE. ML:2.8 0.00007355 1.04 AML other m 2021-03-20T16:41:15.61
IV.AMUR.HHN. ML:2.8 0.00006745000000000001 0.42 AML other m 2021-03-20T16:41:16.42
GE.MATE.HHE. ML:2.8 0.00007115000000000001 0.42 AML other m 2021-03-20T16:41:16.07
GE.MATE.HHN. ML:2.8 0.00008629999999999998 0.46 AML other m 2021-03-20T16:41:16.43
IV.SLCN.HHN. ML:0.0 0.0000945 0.44 AML other m 2021-03-20T16:41:18.27
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, http://terremoti.ingv.it/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