Earthquake with magnitude of ML 1.0 on date 22-07-2020 and time 03:51:40 (UTC) in region Costa Ionica Crotonese (Crotone)

A magnitude ML 1.0 earthquake occured in region: Costa Ionica Crotonese (Crotone), on

  • 22-07-2020 03:51:40 (UTC)
  • 22-07-2020 05:51:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.45, 17.18 at 10 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
CirĂ² Marina KR 10 14902 14902
CirĂ² KR 13 2936 17838
Crucoli KR 15 3115 20953

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km N of Crotone (62178 inhabitants)
78 Km NE of Catanzaro (90612 inhabitants)
81 Km E of Cosenza (67546 inhabitants)
91 Km NE of Lamezia Terme (70714 inhabitants)
Recent and historical Seismicity
Seismic hazard
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled 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 ( 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
ML 1.0 2020-07-22
39.45 17.18 10 2020-07-22
Sala Sismica INGV-Roma 81230811
Preferred location and magnitude until now.
Origin information


Field Value
Time (UTC) 2020-07-22 03:51:40 ± 0.29
Latitude 39.45 ± 0.01
Longitude 17.18 ± 0.03
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81230811


Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2460
Semi-minor axis of confidence ellipse (meter) 1090
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 297
Circular confidence region, given by single value of horizontal uncertainty (meter) 2460
Confidence level of the uncertainty (%) 68


Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 318
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.22483
Epicentral distance of station farthest from the epicenter (degree) 0.63042
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information


Field Value
Value 1
Uncertainty 0.4
Num. used stations 12
Type of magnitude ML
Reference to an origin 81230811
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-22 05:02:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
XK.SELL.HHZ. 2020-07-22T03:52:01.65 0.1 undecidable manual S 223 0.6304 50 0.25 94
MN.TIP.HHZ. 2020-07-22T03:51:54.90 0.3 undecidable manual S 231 0.4218 50 -0.32 73
XK.SELL.HHZ. 2020-07-22T03:51:52.19 0.1 undecidable manual P 223 0.6304 50 -0.17 96
IV.SERS.HHZ. 2020-07-22T03:51:51.12 0.1 undecidable manual P 223 0.5603 50 -0.03 100
IV.CELI.HHZ. 2020-07-22T03:51:50.57 0.1 undecidable manual P 265 0.5216 50 0.08 100
IV.LADO.EHZ. 2020-07-22T03:51:49.33 0.3 undecidable manual S 224 0.2248 112 -0.01 80
MN.TIP.HHZ. 2020-07-22T03:51:48.77 1.0 undecidable manual P 231 0.4218 50 -0.02 26
IV.LADO.EHZ. 2020-07-22T03:51:45.64 0.6 undecidable manual P 224 0.2248 112 0.24 51
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LADO.EHE. ML:1.7 0.0003001278 0.2208 AML other m 2020-07-22T03:51:49.81
IV.LADO.EHN. ML:1.6 0.0002392118 0.2816 AML other m 2020-07-22T03:51:50.00
MN.TIP.HHE. ML:0.6 9.783022E-6 0.3616 AML other m 2020-07-22T03:51:55.57
MN.TIP.HHN. ML:0.6 9.8015555E-6 0.6592 AML other m 2020-07-22T03:51:59.16
MN.TIP.HNE. ML:1.6 0.00010712836 0.72 AML other m 2020-07-22T03:52:00.79
MN.TIP.HNN. ML:1.3 6.2189235E-5 0.8608 AML other m 2020-07-22T03:51:54.18
IV.CELI.HHE. ML:0.8 1.64539595E-5 0.4192 AML other m 2020-07-22T03:52:01.83
IV.CELI.HHN. ML:0.8 1.51262055E-5 0.88 AML other m 2020-07-22T03:52:06.27
IV.SERS.HHE. ML:0.9 1.577818E-5 0.4192 AML other m 2020-07-22T03:52:03.96
IV.SERS.HHN. ML:0.7 1.2350258E-5 0.3008 AML other m 2020-07-22T03:52:04.35
IV.SERS.HNE. ML:1.3 4.1429215E-5 0.8 AML other m 2020-07-22T03:52:06.54
IV.SERS.HNN. ML:1 2.04043125E-5 0.6016 AML other m 2020-07-22T03:51:53.07
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download