Earthquake with magnitude of ML 1.3 on date 01-12-2021 and time 02:20:33 (UTC) in region Costa Ionica Catanzarese (Catanzaro)

A magnitude ML 1.3 earthquake occured in region: Costa Ionica Catanzarese (Catanzaro), on

  • 01-12-2021 02:20:33 (UTC)
  • 01-12-2021 03:20:33 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.816, 16.612 at 18 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
Stalettì CZ 8 2433 2433
San Floro CZ 8 716 3149
Borgia CZ 9 7611 10760
Squillace CZ 9 3608 14368
Catanzaro CZ 10 90612 104980
Montauro CZ 11 1732 106712
Gasperina CZ 12 2160 108872
Caraffa di Catanzaro CZ 13 1866 110738
Vallefiorita CZ 13 1771 112509
Settingiano CZ 14 3124 115633
Montepaone CZ 14 5282 120915
Amaroni CZ 14 1855 122770
Soverato CZ 15 9204 131974
Sellia Marina CZ 15 7513 139487
Palermiti CZ 16 1213 140700
Soveria Simeri CZ 16 1564 142264
Simeri Crichi CZ 16 4698 146962
Girifalco CZ 16 5945 152907
Marcellinara CZ 16 2285 155192
Tiriolo CZ 17 3870 159062
Petrizzi CZ 17 1131 160193
Cortale CZ 18 2117 162310
Centrache CZ 18 401 162711
Sellia CZ 19 530 163241
Miglierina CZ 19 767 164008
Amato CZ 19 835 164843
Pentone CZ 19 2113 166956
Olivadi CZ 19 529 167485
Gimigliano CZ 19 3381 170866
Satriano CZ 20 3448 174314
Gagliato CZ 20 505 174819

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km S of Catanzaro (90612 inhabitants)
31 Km SE of Lamezia Terme (70714 inhabitants)
53 Km SW of Crotone (62178 inhabitants)
61 Km SE of Cosenza (67546 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 1.3 2021-12-01
02:20:33
38.8157 16.6115 18 2021-12-01
02:26:55
Sala Sismica INGV-Roma 97993451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-01 02:20:33 ± 0.12
Latitude 38.8157 ± 0.0045
Longitude 16.6115 ± 0.0081
Depth (km) 18 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97993451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 685
Semi-minor axis of confidence ellipse (meter) 408
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 290
Circular confidence region, given by single value of horizontal uncertainty (meter) 680
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 183
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.14929
Epicentral distance of station farthest from the epicenter (degree) 0.39031
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 97993451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-01 02:26:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
MN.TIP.HHZ. 2021-12-01T02:20:47.59 0.3 undecidable manual S 17 0.3813 103 0.09 70
IV.PLAC.HHZ. 2021-12-01T02:20:47.94 0.3 undecidable manual S 200 0.3903 103 0.18 70
IV.GIZZ.HHZ. 2021-12-01T02:20:46.80 0.6 undecidable manual S 298 0.3543 104 0.07 48
IV.SERS.HHZ. 2021-12-01T02:20:43.33 0.3 undecidable manual S 15 0.2284 115 0.13 72
IV.GIZZ.HHZ. 2021-12-01T02:20:41.38 0.3 undecidable manual P 298 0.3543 104 0.23 69
IV.GRI.EHZ. 2021-12-01T02:20:41.08 0.3 undecidable manual S 273 0.1493 129 -0.14 73
MN.TIP.HHZ. 2021-12-01T02:20:41.39 0.1 undecidable manual P 17 0.3813 103 -0.21 92
IV.SELL.HHZ. 2021-12-01T02:20:41.66 0.3 undecidable manual S 4 0.1682 125 0.01 75
IV.PLAC.HHZ. 2021-12-01T02:20:41.62 0.1 undecidable manual P 200 0.3903 103 -0.13 93
IV.SERS.HHZ. 2021-12-01T02:20:39.07 0.1 undecidable manual P 15 0.2284 115 -0.05 98
IV.SELL.HHZ. 2021-12-01T02:20:38.23 0.1 undecidable manual P 4 0.1682 125 0.01 100
IV.GRI.EHZ. 2021-12-01T02:20:37.92 0.1 undecidable manual P 273 0.1493 129 -0.05 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SELL.HNN. ML:1.5 0.00020639895 0.44 AML other m 2021-12-01T02:20:42.57
IV.SELL.HNE. ML:1.4 0.0001682985 0.1392 AML other m 2021-12-01T02:20:42.55
IV.SELL.HHE. ML:1 5.3687505E-5 0.28 AML other m 2021-12-01T02:20:42.12
IV.SELL.HHN. ML:1 5.957906E-5 0.24 AML other m 2021-12-01T02:20:42.91
IV.SERS.HHE. ML:1.1 6.444829E-5 0.3408 AML other m 2021-12-01T02:20:43.48
IV.SERS.HHN. ML:1.6 0.000179 0.28 AML other m 2021-12-01T02:20:43.57
IV.GRI.EHE. ML:1.4 0.00015209115 0.2208 AML other m 2021-12-01T02:20:42.29
IV.GRI.EHN. ML:1.6 0.0002889679 0.36 AML other m 2021-12-01T02:20:42.03
IV.SERS.HNE. ML:1.5 0.0001724288 0.28 AML other m 2021-12-01T02:20:43.43
IV.SERS.HNN. ML:1.1 6.399762E-5 0.4 AML other m 2021-12-01T02:20:43.50
MN.TIP.HHN. ML:0.8 2.0541375E-5 0.3616 AML other m 2021-12-01T02:20:49.00
IV.PLAC.HHN. ML:1.1 3.735778E-5 0.24 AML other m 2021-12-01T02:20:48.84
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