Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.4 on date 06-09-2023 and time 21:31:10 (Italy) in region 6 km NW Lungro (CS)

A magnitude ML 0.4 earthquake occured in region: 6 km NW Lungro (CS), on

  • 06-09-2023 19:31:10 (UTC)
  • 06-09-2023 21:31:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.7860, 16.0800 at 1 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.

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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
Lungro CS 6 2592 2592
Saracena CS 7 3828 6420
Acquaformosa CS 7 1106 7526
San Basile CS 8 1055 8581
Morano Calabro CS 8 4576 13157
San Donato di Ninea CS 9 1360 14517
Altomonte CS 11 4488 19005
Castrovillari CS 11 22240 41245
Firmo CS 11 2115 43360
Mormanno CS 14 3027 46387
Orsomarso CS 15 1265 47652
San Sosti CS 15 2185 49837
Verbicaro CS 15 3056 52893
Mottafollone CS 15 1236 54129
Frascineto CS 17 2154 56283
Papasidero CS 18 734 57017
Laino Castello CS 19 848 57865
Rotonda PZ 19 3494 61359
Santa Domenica Talao CS 20 1263 62622
Buonvicino CS 20 2247 64869
Roggiano Gravina CS 20 7208 72077

Municipalities with at least 50000 inhabitants

An earthquake occurred to
57 Km N of Cosenza (67546 inhabitants)
92 Km N of Lamezia Terme (70714 inhabitants)
98 Km S of Potenza (67122 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
Reviewed
Rev100 		ML 0.4 2023-09-06
19:31:10		 39.7865 16.0803 1 2023-09-06
19:40:00		 Sala Sismica INGV-Roma 120834091
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-06 19:31:10 ± 0.09
Latitude 39.7865 ± 0.0036
Longitude 16.0803 ± 0.0035
Depth (km) 1 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 120834091

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 460
Semi-minor axis of confidence ellipse (meter) 290
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 149
Circular confidence region, given by single value of horizontal uncertainty (meter) 460.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 189
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.22303
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.3
Num. used stations 5
Type of magnitude ML
Reference to an origin 120834091
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-09-06 19:40:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIPA.HHZ. 2023-09-06T19:31:21.87 3.0 undecidable manual P -0.11 0
IV.SPS2.HHZ. 2023-09-06T19:31:20.24 3.0 positive manual P 0.12 0
IV.GRIS.EHZ. 2023-09-06T19:31:17.80 0.3 undecidable manual S 255 20.0688 92 -0.02 74
XE.ZIDIL.HHZ. 2023-09-06T19:31:17.95 0.3 undecidable manual S 100
XE.MORMA.HHZ. 2023-09-06T19:31:15.12 0.6 undecidable manual S 315 13.0758 93 -0.28 47
IV.SALB.HHZ. 2023-09-06T19:31:15.74 0.1 undecidable manual P 66 24.753 92 -0.08 96
XE.TNOVA.HHZ. 2023-09-06T19:31:15.55 0.1 undecidable manual P 100
XE.T0702.HHZ. 2023-09-06T19:31:15.63 0.6 undecidable manual S 100
XE.CNESE.HNZ. 2023-09-06T19:31:15.07 0.3 undecidable manual S 2 11.9769 93 0.06 74
IV.GRIS.EHZ. 2023-09-06T19:31:14.94 0.6 negative manual P 255 20.0688 92 0.06 49
XE.ZIDIL.HHZ. 2023-09-06T19:31:14.81 0.1 undecidable manual P 100
XE.T0701.HHZ. 2023-09-06T19:31:14.70 0.1 undecidable manual P 100
XE.CNESE.HNZ. 2023-09-06T19:31:13.26 0.1 undecidable manual P 2 11.9769 93 0 100
XE.MORMA.HHZ. 2023-09-06T19:31:13.51 0.1 undecidable manual P 315 13.0758 93 0.03 99
XE.T0702.HHZ. 2023-09-06T19:31:13.74 0.3 undecidable manual P -0.16 1.53
IV.MMN.HHZ. 2023-09-06T19:31:13.76 0.1 undecidable manual P 327 13.875 93 0.11 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
XE.MORMA.HHN. ML:0.6 0.0000494 0.26 AML other m 2023-09-06T19:31:15.29
XE.MORMA.HHE. ML:0.6 0.000061070305 0.1408 AML other m 2023-09-06T19:31:15.23
XE.T0702.HHE. ML:0.6 0.00004478278500000001 0.2688 AML other m 2023-09-06T19:31:15.94
XE.T0702.HHN. ML:0.5 0.00003677991 0.1536 AML other m 2023-09-06T19:31:16.74
XE.MORMA.HNE. ML:0.6 0.000060190880000000005 0.256 AML other m 2023-09-06T19:31:15.44
XE.T0702.HNE. ML:0.0 0.000015130962049999998 0.2304 AML other m 2023-09-06T19:31:15.71
XE.T0702.HNN. ML:0.0 0.000009689471500000001 0.2176 AML other m 2023-09-06T19:31:16.42
IV.GRIS.EHE. ML:-0.2 0.000007442948000000001 0.1536 AML other m 2023-09-06T19:31:18.00
IV.GRIS.EHN. ML:0.1 0.000010897269500000001 0.2688 AML other m 2023-09-06T19:31:18.38
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