Earthquake with magnitude of ML 1.7 on date 06-12-2021 and time 17:36:02 (Italy) in region Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria)

A magnitude ML 1.7 earthquake occured in region: Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria), on

  • 06-12-2021 16:36:02 (UTC)
  • 06-12-2021 17:36:02 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.919, 16.024 at 37 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Falerna CZ 16 4028 4028
Gizzeria CZ 17 4982 9010
Nocera Terinese CZ 18 4731 13741

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km W of Lamezia Terme (70714 inhabitants)
46 Km SW of Cosenza (67546 inhabitants)
49 Km W of Catanzaro (90612 inhabitants)
90 Km NE of Messina (238439 inhabitants)
96 Km NE of Reggio di Calabria (183035 inhabitants)
97 Km W of Crotone (62178 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.7 2021-12-06
16:36:02
38.9187 16.0243 37 2021-12-06
16:51:37
Sala Sismica INGV-Roma 98215111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-06 16:36:02 ± 0.13
Latitude 38.9187 ± 0.0090
Longitude 16.0243 ± 0.0208
Depth (km) 37 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 98215111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1871
Semi-minor axis of confidence ellipse (meter) 701
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 111
Circular confidence region, given by single value of horizontal uncertainty (meter) 1870
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 152
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.83187
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 13
Type of magnitude ML
Reference to an origin 98215111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-06 16:51:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.PCP.HHZ. 2021-12-06T16:38:02.94 3.0 positive manual Pn 3.8 0
IV.EUCT.HNZ. 2021-12-06T16:37:59.06 3.0 undecidable manual Pn -2.5 0
CR.STON.BHZ. 2021-12-06T16:37:55.64 3.0 undecidable manual Sn -0.65 0
IV.RMP.HHZ. 2021-12-06T16:37:45.68 3.0 undecidable manual Sn -3.7 0
IV.MMUR.HNZ. 2021-12-06T16:37:36.17 3.0 undecidable manual Pg 16.440001 0
IV.RIBO.EHZ.01 2021-12-06T16:37:30.02 3.0 undecidable manual Pn 4.05 0
AC.VLO.HHZ. 2021-12-06T16:37:29.30 3.0 undecidable manual Sn -0.45 0
OT.OT17.EHZ. 2021-12-06T16:37:25.19 3.0 undecidable manual Sg 1.21 0
IV.RMP.HHZ. 2021-12-06T16:37:15.60 3.0 negative manual Pg 12.58 0
IX.RSF3.HHZ.02 2021-12-06T16:37:07.29 3.0 undecidable manual Sg -0.48 0
IX.SNR3.EHZ.02 2021-12-06T16:36:54.18 3.0 undecidable manual Sn -8.23 0
IV.MOCO.HHZ. 2021-12-06T16:36:45.38 3.0 undecidable manual Pn 0.36 0
IV.MCRV.HHZ. 2021-12-06T16:36:41.82 3.0 undecidable manual Pg 4.5 0
IV.CELI.HHZ. 2021-12-06T16:36:24.01 0.3 undecidable manual S 38 0.6124 54 -0.23 69
IV.SELL.HHE. 2021-12-06T16:36:20.85 0.6 undecidable manual S 82 0.473 121 0.21 48
IV.SPS2.HHZ. 2021-12-06T16:36:19.87 0.3 undecidable manual S 33 0.4452 123 -0.05 75
IV.GRIS.EHE. 2021-12-06T16:36:17.77 0.3 undecidable manual P 351 0.8319 54 -0.19 67
IV.CAR1.HHZ. 2021-12-06T16:36:17.60 0.6 undecidable manual S 23 0.3642 129 -0.39 47
IV.GRI.EHZ. 2021-12-06T16:36:16.75 0.3 undecidable manual S 107 0.3229 132 -0.29 72
IV.JOPP.HHZ. 2021-12-06T16:36:16.99 0.3 undecidable manual S 199 0.3301 132 -0.22 73
TV.GMB1.HHZ. 2021-12-06T16:36:16.40 0.6 undecidable manual P 192 0.7635 54 -0.61 40
IY.OPPI.HHZ. 2021-12-06T16:36:16.25 0.3 undecidable manual P 181 0.6511 54 0.79 58
IV.SERS.HHE. 2021-12-06T16:36:14.38 0.6 undecidable manual P 77 0.5288 118 0.71 41
IV.CELI.HHZ. 2021-12-06T16:36:14.85 0.1 undecidable manual P 38 0.6124 54 -0.07 95
IV.PLAC.HHE. 2021-12-06T16:36:13.81 0.1 undecidable manual P 145 0.5693 116 -0.47 88
IV.SELL.HHE. 2021-12-06T16:36:13.42 0.3 undecidable manual P 82 0.473 121 0.58 65
IV.GIZZ.HHZ. 2021-12-06T16:36:13.93 0.6 undecidable manual S 67 0.1547 153 -0.07 52
IV.SPS2.HHZ. 2021-12-06T16:36:12.49 0.1 undecidable manual P 33 0.4452 123 0.06 98
IV.FERC.HHE.00 2021-12-06T16:36:12.49 0.3 undecidable manual P 170 0.473 121 -0.34 69
IV.CAR1.HHZ. 2021-12-06T16:36:11.37 0.1 undecidable manual P 23 0.3642 129 0.06 100
IV.JOPP.HHZ. 2021-12-06T16:36:11.19 0.1 undecidable manual P 199 0.3301 132 0.34 95
IV.GRI.EHZ. 2021-12-06T16:36:10.72 0.3 undecidable manual P 107 0.3229 132 -0.05 76
IV.GIZZ.HHZ. 2021-12-06T16:36:09.35 0.3 undecidable manual P 67 0.1547 153 0.34 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GIZZ.HHN. ML:2.1 0.00039780995 0.1152 AML other m 2021-12-06T16:36:14.22
IV.GIZZ.HHE. ML:1.8 0.00025248325 0.1408 AML other m 2021-12-06T16:36:14.80
IV.JOPP.HHN. ML:2 0.000229 0.56 AML other m 2021-12-06T16:36:17.51
IV.JOPP.HHE. ML:1.9 0.0001875 0.88 AML other m 2021-12-06T16:36:17.24
IV.GRI.EHE. ML:1.4 6.3549435E-5 0.2688 AML other m 2021-12-06T16:36:16.70
IV.GRI.EHN. ML:1.3 5.7393415E-5 0.576 AML other m 2021-12-06T16:36:16.88
IV.JOPP.HNN. ML:1.9 0.00019937665 0.1152 AML other m 2021-12-06T16:36:17.51
IV.CAR1.HHE. ML:1.8 0.0001510546 0.1792 AML other m 2021-12-06T16:36:18.02
IV.CAR1.HHN. ML:1.7 0.00012269622 0.128 AML other m 2021-12-06T16:36:18.39
IV.CAR1.HNE. ML:1.8 0.000149339135 0.1664 AML other m 2021-12-06T16:36:18.65
IV.CAR1.HNN. ML:1.6 0.000101383805 0.128 AML other m 2021-12-06T16:36:18.40
IV.SPS2.HHE. ML:1.1 2.385484E-5 0.1408 AML other m 2021-12-06T16:36:20.08
IV.SPS2.HHN. ML:1.3 4.0936775E-5 0.1792 AML other m 2021-12-06T16:36:20.06
IV.CELI.HNE. ML:1.2 2.5207845E-5 0.6016 AML other m 2021-12-06T16:36:24.33
IV.CELI.HNN. ML:1.2 2.654926E-5 0.8448 AML other m 2021-12-06T16:36:24.54
IV.CELI.HHE. ML:0.8 1.2076691E-5 0.384 AML other m 2021-12-06T16:36:24.24
IV.CELI.HHN. ML:1 1.472996E-5 0.384 AML other m 2021-12-06T16:36:24.33
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download