Earthquake with magnitude of ML 0.4 on date 04-09-2020 and time 23:32:58 (UTC) in region 3 km SW San Pietro Apostolo (CZ)

A magnitude ML 0.4 earthquake occured in region: 3 km SW San Pietro Apostolo (CZ), on

  • 04-09-2020 23:32:58 (UTC)
  • 05-09-2020 01:32:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.98, 16.45 at 12 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
San Pietro Apostolo CZ 3 1691 1691
Serrastretta CZ 4 3176 4867
Miglierina CZ 4 767 5634
Amato CZ 5 835 6469
Feroleto Antico CZ 6 2171 8640
Pianopoli CZ 6 2589 11229
Cicala CZ 6 968 12197
Tiriolo CZ 7 3870 16067
Marcellinara CZ 7 2285 18352
Gimigliano CZ 7 3381 21733
Carlopoli CZ 9 1516 23249
Panettieri CS 9 351 23600
Settingiano CZ 10 3124 26724
Decollatura CZ 11 3159 29883
Lamezia Terme CZ 11 70714 100597
Platania CZ 11 2172 102769
Sorbo San Basile CZ 12 809 103578
Fossato Serralta CZ 12 594 104172
Pentone CZ 12 2113 106285
Caraffa di Catanzaro CZ 12 1866 108151
Taverna CZ 13 2703 110854
Soveria Mannelli CZ 13 3076 113930
Bianchi CS 14 1305 115235
Albi CZ 14 949 116184
Maida CZ 15 4566 120750
Catanzaro CZ 15 90612 211362
Cortale CZ 16 2117 213479
Sellia CZ 16 530 214009
Colosimi CS 16 1247 215256
Jacurso CZ 16 624 215880
Magisano CZ 16 1258 217138
San Pietro a Maida CZ 17 4200 221338
Conflenti CZ 17 1392 222730
San Floro CZ 17 716 223446
Simeri Crichi CZ 18 4698 228144
Girifalco CZ 18 5945 234089
Motta Santa Lucia CZ 18 845 234934
Borgia CZ 18 7611 242545
Zagarise CZ 19 1647 244192
Pedivigliano CS 19 831 245023

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km E of Lamezia Terme (70714 inhabitants)
15 Km NW of Catanzaro (90612 inhabitants)
38 Km SE of Cosenza (67546 inhabitants)
60 Km W of Crotone (62178 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
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 (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 0.4 2020-09-04
23:32:58
38.98 16.45 12 2020-09-05
00:05:40
Sala Sismica INGV-Roma 82631261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-04 23:32:58 ± 0.33
Latitude 38.98 ± 0.03
Longitude 16.45 ± 0.01
Depth (km) 12 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 82631261

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2823
Semi-minor axis of confidence ellipse (meter) 1221
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 178
Circular confidence region, given by single value of horizontal uncertainty (meter) 2820
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 236
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.42268
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 82631261
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-05 00:05:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CELI.HHE. 2020-09-04T23:33:13.42 0.3 undecidable manual S 7 0.4227 91 0.09 69
IV.CAR1.HHZ. 2020-09-04T23:33:09.99 0.3 undecidable manual S 326 0.3265 92 -0.48 70
MN.TIP.HHE. 2020-09-04T23:33:09.70 0.3 undecidable manual S 51 0.3121 92 -0.34 47
IV.CELI.HHE. 2020-09-04T23:33:07.31 0.3 undecidable manual P 7 0.4227 91 0.32 76
IV.SERS.HHZ. 2020-09-04T23:33:06.46 0.3 undecidable manual S 74 0.1961 95 -0.14 54
XK.SELL.HHZ. 2020-09-04T23:33:05.38 0.3 undecidable manual S 90 0.1412 103 0.38 75
IV.CAR1.HHZ. 2020-09-04T23:33:05.20 0.3 undecidable manual P 326 0.3265 92 -0.14 75
MN.TIP.HHE. 2020-09-04T23:33:04.85 0.3 undecidable manual P 51 0.3121 92 -0.25 61
XK.GIZZ.HHZ. 2020-09-04T23:33:03.08 3.0 undecidable manual P 0.05 0
IV.SERS.HHZ. 2020-09-04T23:33:03.04 0.1 undecidable manual P 74 0.1961 95 -0.07 89
XK.SELL.HHZ. 2020-09-04T23:33:02.29 0.1 undecidable manual P 90 0.1412 103 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SERS.HHE. ML:0.5 2.131423E-5 0.384 AML other m 2020-09-04T23:33:06.98
IV.SERS.HHN. ML:0.2 1.105286E-5 0.4608 AML other m 2020-09-04T23:33:08.05
IV.CAR1.HHE. ML:0.4 1.2456069E-5 0.2816 AML other m 2020-09-04T23:33:11.07
IV.CAR1.HHN. ML:0.6 1.4679298E-5 0.32 AML other m 2020-09-04T23:33:10.46
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download