Earthquake with magnitude of ML 1.4 on date 24-09-2021 and time 17:18:57 (Italy) in region Costa Ionica Crotonese (Crotone)

A magnitude ML 1.4 earthquake occured in region: Costa Ionica Crotonese (Crotone), on

  • 24-09-2021 15:18:57 (UTC)
  • 24-09-2021 17:18:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.259, 17.106 at 21 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
Strongoli KR 5 6571 6571
Melissa KR 9 3549 10120
Rocca di Neto KR 12 5687 15807
San Nicola dell'Alto KR 12 856 16663
CirĂ² Marina KR 12 14902 31565
Carfizzi KR 12 661 32226
Casabona KR 13 2718 34944
CirĂ² KR 14 2936 37880
Pallagorio KR 17 1217 39097
Umbriatico KR 19 863 39960
Belvedere di Spinello KR 19 2297 42257
Scandale KR 20 3169 45426
Crotone KR 20 62178 107604

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km N of Crotone (62178 inhabitants)
59 Km NE of Catanzaro (90612 inhabitants)
73 Km E of Cosenza (67546 inhabitants)
75 Km E of Lamezia Terme (70714 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 the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.4 2021-09-24
15:18:57
39.2592 17.1058 21 2021-09-24
15:28:42
Sala Sismica INGV-Roma 95837281
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-24 15:18:57 ± 0.38
Latitude 39.2592 ± 0.0126
Longitude 17.1058 ± 0.0290
Depth (km) 21 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95837281

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2066
Semi-minor axis of confidence ellipse (meter) 1612
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 281
Circular confidence region, given by single value of horizontal uncertainty (meter) 2070
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 276
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.71586
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 95837281
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-24 15:28:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.NDIM.HNZ. 2021-09-24T15:20:50.34 3.0 negative manual Pg 14.74 0
IV.CAPR.HNZ. 2021-09-24T15:20:49.68 3.0 undecidable manual Pn 0.14 0
IV.SRES.HHZ. 2021-09-24T15:20:48.43 3.0 undecidable manual Sn -0.23 0
IV.ZEN8.EHZ. 2021-09-24T15:20:45.90 3.0 undecidable manual Pn 1.41 0
IV.GUMA.HHZ. 2021-09-24T15:20:44.64 3.0 undecidable manual Sn -7.45 0
IV.FIR.HHZ. 2021-09-24T15:20:39.81 3.0 undecidable manual Pg 17.59 0
CR.STON.BHZ. 2021-09-24T15:20:25.00 3.0 undecidable manual Sn -1.73 0
IV.RIBO.EHZ.01 2021-09-24T15:20:21.45 3.0 undecidable manual Pn 4.77 0
IV.PE3.EHZ. 2021-09-24T15:20:09.85 3.0 undecidable manual Pn -3.03 0
OT.OT05.EHZ. 2021-09-24T15:20:01.06 3.0 undecidable manual Sg 0.09 0
IV.OFFI.HHZ. 2021-09-24T15:20:00.99 3.0 undecidable manual Pn 3.71 0
IV.MFNL.HHZ. 2021-09-24T15:19:56.10 3.0 negative manual Pg 6.26 0
IV.MTGR.HHZ. 2021-09-24T15:19:45.78 3.0 undecidable manual Pn -4.89 0
IV.PTRJ.HNZ. 2021-09-24T15:19:41.26 3.0 undecidable manual Pg 5.92 0
IV.SERS.HHZ. 2021-09-24T15:19:12.48 0.6 undecidable manual S 236 0.393 107 0.17 46
IV.GRI.EHE. 2021-09-24T15:19:10.99 0.6 undecidable manual P 231 0.6889 99 -0.14 43
IV.TDS.HHZ. 2021-09-24T15:19:10.84 0.6 undecidable manual P 304 0.7159 98 -0.75 36
IV.SPS2.HHE. 2021-09-24T15:19:09.65 0.1 undecidable manual P 273 0.5945 100 0.11 90
MN.TIP.HHZ. 2021-09-24T15:19:09.13 0.3 undecidable manual S 254 0.2806 115 -0.07 73
IV.PIPA.HHE. 2021-09-24T15:19:09.53 0.6 undecidable manual S 315 0.3184 112 -0.69 41
IV.CELI.HHZ. 2021-09-24T15:19:08.26 0.1 undecidable manual P 287 0.4829 103 0.58 82
IV.SELL.HHE. 2021-09-24T15:19:06.61 0.1 undecidable manual P 233 0.4623 104 -0.72 77
IV.SERS.HHZ. 2021-09-24T15:19:06.47 0.1 undecidable manual P 236 0.393 107 0.28 90
IV.PIPA.HHE. 2021-09-24T15:19:05.31 0.1 undecidable manual P 315 0.3184 112 0.33 91
IV.LADO.EHZ. 2021-09-24T15:19:04.92 0.6 undecidable manual S 284 0.1007 147 -0.17 49
MN.TIP.HHZ. 2021-09-24T15:19:04.50 0.6 negative manual P 254 0.2806 115 0.11 48
IV.LADO.EHZ. 2021-09-24T15:19:02.07 0.1 positive manual P 284 0.1007 147 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LADO.EHN. ML:1.7 0.00038600455 0.1664 AML other m 2021-09-24T15:19:07.19
IV.LADO.EHE. ML:1.8 0.00047403655 0.192 AML other m 2021-09-24T15:19:09.02
MN.TIP.HHN. ML:1.3 8.105E-5 0.32 AML other m 2021-09-24T15:19:11.42
MN.TIP.HHE. ML:1.2 6.81E-5 0.4 AML other m 2021-09-24T15:19:11.47
IV.SERS.HHN. ML:1.2 5.165E-5 0.82 AML other m 2021-09-24T15:19:14.40
IV.SERS.HHE. ML:1.4 6.435E-5 0.42 AML other m 2021-09-24T15:19:18.25
MN.TIP.HNE. ML:1.4 8.765043E-5 0.4096 AML other m 2021-09-24T15:19:11.68
MN.TIP.HNN. ML:1.3 8.7244965E-5 0.32 AML other m 2021-09-24T15:19:11.27
IV.SERS.HNE. ML:1.4 7.149844E-5 0.5248 AML other m 2021-09-24T15:19:18.64
IV.SERS.HNN. ML:1.4 6.2636285E-5 0.3072 AML other m 2021-09-24T15:19:21.15
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