Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 04-09-2023 and time 16:20:28 (UTC) in region 7 km SW Morano Calabro (CS)

A magnitude ML 1.3 earthquake occured in region: 7 km SW Morano Calabro (CS), on

  • 04-09-2023 16:20:28 (UTC)
  • 04-09-2023 18:20:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.8050, 16.0700 at 9 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
Morano Calabro CS 7 4576 4576
Lungro CS 8 2592 7168
San Basile CS 8 1055 8223
Saracena CS 8 3828 12051
Acquaformosa CS 9 1106 13157
San Donato di Ninea CS 10 1360 14517
Castrovillari CS 11 22240 36757
Mormanno CS 12 3027 39784
Altomonte CS 13 4488 44272
Firmo CS 13 2115 46387
Orsomarso CS 14 1265 47652
Verbicaro CS 15 3056 50708
Papasidero CS 16 734 51442
San Sosti CS 17 2185 53627
Laino Castello CS 17 848 54475
Rotonda PZ 17 3494 57969
Frascineto CS 17 2154 60123
Mottafollone CS 17 1236 61359
Santa Domenica Talao CS 18 1263 62622
Laino Borgo CS 19 1921 64543
Viggianello PZ 19 3025 67568

Municipalities with at least 50000 inhabitants

An earthquake occurred to
59 Km N of Cosenza (67546 inhabitants)
95 Km N of Lamezia Terme (70714 inhabitants)
96 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 1.3 2023-09-04
16:20:28		 39.8047 16.0695 9 2023-09-04
16:30:09		 Sala Sismica INGV-Roma 120749551
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-04 16:20:28 ± 0.11
Latitude 39.8047 ± 0.0090
Longitude 16.0695 ± 0.0105
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 120749551

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1091
Semi-minor axis of confidence ellipse (meter) 675
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 329
Circular confidence region, given by single value of horizontal uncertainty (meter) 1090.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 121
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.28958
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 120749551
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-09-04 16:30:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IX.COL3.HHZ.02 2023-09-04T16:21:01.31 3.0 undecidable manual S -0.2 0
IV.SELL.HHZ. 2023-09-04T16:21:00.13 3.0 undecidable manual S 0.08 0
IV.CET2.HHZ. 2023-09-04T16:20:39.91 0.3 undecidable manual S 198 32.1456 50 -0.3 70
IV.MGR.HHZ. 2023-09-04T16:20:38.30 3.0 undecidable manual P 0.01 0
XE.TNOVA.HHZ. 2023-09-04T16:20:38.16 0.3 undecidable manual S 100
XE.T0701.HHZ. 2023-09-04T16:20:36.19 0.6 undecidable manual S 100
XE.ZIDIL.HHZ. 2023-09-04T16:20:36.22 0.3 undecidable manual S 100
IV.GRIS.EHZ. 2023-09-04T16:20:36.10 0.3 undecidable manual S 249 19.7691 114 -0.12 74
XE.LAICA.HNE. 2023-09-04T16:20:35.12 0.3 undecidable manual S 333 17.871 117 -0.5 68
IV.CET2.HHZ. 2023-09-04T16:20:35.54 0.1 undecidable manual P 198 32.1456 50 0.2 95
XE.ZIDIL.HHZ. 2023-09-04T16:20:33.02 0.1 undecidable manual P 100
XE.MORMA.HHZ. 2023-09-04T16:20:33.53 0.3 undecidable manual S 311 10.9779 129 -0.08 76
IV.GRIS.EHZ. 2023-09-04T16:20:33.15 0.1 undecidable manual P 249 19.7691 114 0.1 99
IV.MMN.HHN. 2023-09-04T16:20:33.72 0.6 undecidable manual S 325 11.6772 127 -0.09 50
XE.T0702.HHZ. 2023-09-04T16:20:33.75 0.3 undecidable manual S 100
XE.CNESE.HHE. 2023-09-04T16:20:33.36 0.3 undecidable manual S 7 9.9789 132 0.01 77
XE.TNOVA.HHZ. 2023-09-04T16:20:33.82 0.1 undecidable manual P 100
XE.FRASC.HHZ. 2023-09-04T16:20:32.05 0.6 undecidable manual P 77 17.1717 117 -0.52 45
XE.T0701.HHZ. 2023-09-04T16:20:32.99 0.1 undecidable manual P 100
XE.LAICA.HNE. 2023-09-04T16:20:32.92 0.1 undecidable manual P 333 17.871 117 0.22 97
IV.MMN.HHN. 2023-09-04T16:20:31.80 0.1 undecidable manual P 325 11.6772 127 0.16 99
XE.T0702.HHZ. 2023-09-04T16:20:31.98 0.1 undecidable manual P 100
XE.CNESE.HHE. 2023-09-04T16:20:31.56 0.1 undecidable manual P 7 9.9789 132 0.18 99
XE.MORMA.HHZ. 2023-09-04T16:20:31.66 0.1 undecidable manual P 311 10.9779 129 0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
XE.T0702.HHE. ML:1.2 0.00022700000000000002 1.4 AML other m 2023-09-04T16:20:33.19
XE.MORMA.HHN. ML:1.3 0.000266 0.32 AML other m 2023-09-04T16:20:33.94
XE.MORMA.HHE. ML:1.4 0.0003435 1.78 AML other m 2023-09-04T16:20:33.94
XE.MORMA.HNE. ML:1.5 0.000373 1.78 AML other m 2023-09-04T16:20:33.94
XE.MORMA.HNN. ML:1.3 0.00023249999999999999 0.32 AML other m 2023-09-04T16:20:33.95
XE.T0702.HHN. ML:1.0 0.0001236 0.2 AML other m 2023-09-04T16:20:34.62
IV.GRIS.EHE. ML:1.0 0.0000775 0.5 AML other m 2023-09-04T16:20:36.35
IV.GRIS.EHN. ML:1.0 0.00007155 0.62 AML other m 2023-09-04T16:20:37.30
XE.T0701.HHN. ML:1.3 0.0001515 1.62 AML other m 2023-09-04T16:20:39.02
XE.T0701.HHE. ML:1.3 0.0001575 0.22 AML other m 2023-09-04T16:20:39.14
XE.T0701.HNE. ML:1.1 0.00008999999999999999 0.3 AML other m 2023-09-04T16:20:39.17
XE.T0701.HNN. ML:1.2 0.000108 0.4 AML other m 2023-09-04T16:20:40.24
IV.CET2.HHN. ML:1.6 0.00016949999999999997 0.44 AML other m 2023-09-04T16:20:40.19
IV.CET2.HHE. ML:1.6 0.00016965 1 AML other m 2023-09-04T16:20:40.17
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