Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 11-02-2020 and time 23:19:38 (UTC) in region Costa Ionica Catanzarese (Catanzaro)

A magnitude ML 1.7 earthquake occured in region: Costa Ionica Catanzarese (Catanzaro), on

  • 11-02-2020 23:19:38 (UTC)
  • 12-02-2020 00:19:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.8560, 16.8230 at 29 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
Sellia Marina CZ 9 7513 7513
Botricello CZ 10 5220 12733
Cropani CZ 13 4778 17511
Soveria Simeri CZ 16 1564 19075
Belcastro CZ 18 1399 20474
Andali CZ 18 769 21243
Simeri Crichi CZ 19 4698 25941
Marcedusa CZ 19 448 26389
Sersale CZ 19 4630 31019
Cerva CZ 20 1223 32242

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km E of Catanzaro (90612 inhabitants)
36 Km SW of Crotone (62178 inhabitants)
46 Km E of Lamezia Terme (70714 inhabitants)
69 Km SE of Cosenza (67546 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 1.7 2020-02-11
23:19:38		 38.8555 16.8228 29 2020-07-18
21:08:26		 Bollettino Sismico Italiano INGV 77321311
Reviewed
Rev100 		ML 1.5 2020-02-11
23:19:37		 38.8207 16.8998 26 2020-02-11
23:24:43		 Sala Sismica INGV-Roma 76448071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-11 23:19:38 ± 0.24
Latitude 38.8555 ± 0.0072
Longitude 16.8228 ± 0.0127
Depth (km) 29 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 77321311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 917
Semi-minor axis of confidence ellipse (meter) 767
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 303
Circular confidence region, given by single value of horizontal uncertainty (meter) 920.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 201
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.20864
Epicentral distance of station farthest from the epicenter (degree) 0.77162
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 2
Type of magnitude ML
Reference to an origin 76448071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-11 23:24:43

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 7
Type of magnitude ML
Reference to an origin 77321311
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-04-20 14:48:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PLAC.HHE. 2020-02-11T23:19:56.25 0.6 undecidable manual S 217 55.9995 112 -0.34 46
IV.JOPP.HNN. 2020-02-11T23:19:53.44 0.3 undecidable manual P 252 85.6476 104 0.24 68
MN.TIP.HHZ. 2020-02-11T23:19:52.12 0.6 undecidable manual S 351 36.3414 123 0.2 50
IV.GRI.EHZ. 2020-02-11T23:19:51.71 0.3 undecidable manual S 264 35.0427 125 0.09 77
IV.CELI.HHZ. 2020-02-11T23:19:50.08 0.3 undecidable manual P 336 66.4779 108 -0.27 69
IV.CAR1.HHZ. 2020-02-11T23:19:50.52 0.3 undecidable manual P 310 68.6757 107 -0.16 71
IV.SPS2.HHE. 2020-02-11T23:19:50.26 0.3 undecidable manual P 319 63.7917 109 0.3 70
IV.SERS.HHZ. 2020-02-11T23:19:49.30 0.6 undecidable manual S 330 23.1546 137 0.09 52
IV.LADO.EHE. 2020-02-11T23:19:48.25 0.3 undecidable manual P 16 49.4172 115 0.35 71
IV.PLAC.HHE. 2020-02-11T23:19:48.91 0.3 undecidable manual P 217 55.9995 112 0.07 75
MN.TIP.HHZ. 2020-02-11T23:19:46.00 0.1 undecidable manual P 351 36.3414 123 -0.14 100
IV.GRI.EHZ. 2020-02-11T23:19:45.91 0.3 undecidable manual P 264 35.0427 125 -0.06 76
IV.SERS.HHZ. 2020-02-11T23:19:44.33 0.1 undecidable manual P 330 23.1546 137 -0.25 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SERS.HHE. ML:1.8 0.0002572543 0.4608 AML other m 2020-02-11T23:19:49.81
IV.SERS.HHN. ML:1.9 0.00030442844999999997 0.256 AML other m 2020-02-11T23:19:49.77
IV.SERS.HNE. ML:1.9 0.00029893749999999994 0.3072 AML other m 2020-02-11T23:19:49.77
IV.SERS.HNN. ML:1.8 0.00026810909999999997 0.4352 AML other m 2020-02-11T23:19:49.82
MN.TIP.HNN. ML:1.5 0.00009595679 0.32 AML other m 2020-02-11T23:19:52.52
MN.TIP.HHE. ML:1.2 0.00004791314 0.4224 AML other m 2020-02-11T23:19:52.66
MN.TIP.HNE. ML:1.3 0.00006054397 0.448 AML other m 2020-02-11T23:19:52.67
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