Earthquake with magnitude of ML 1.0 on date 26-09-2023 and time 00:44:54 (Italy) in region Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria)

A magnitude ML 1.0 earthquake occured in region: Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria), on

  • 25-09-2023 22:44:54 (UTC)
  • 26-09-2023 00:44:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.0250, 16.0440 at 7 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
Serra d'Aiello CS 10 458 458
Nocera Terinese CZ 11 4731 5189
Falerna CZ 11 4028 9217
Amantea CS 13 13975 23192
San Mango d'Aquino CZ 13 1564 24756
San Pietro in Amantea CS 14 505 25261
Cleto CS 15 1301 26562
Aiello Calabro CS 15 1729 28291
Gizzeria CZ 15 4982 33273
Belmonte Calabro CS 16 2003 35276
Martirano Lombardo CZ 17 1112 36388
Lago CS 18 2624 39012
Martirano CZ 19 884 39896

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km W of Lamezia Terme (70714 inhabitants)
35 Km SW of Cosenza (67546 inhabitants)
50 Km W of Catanzaro (90612 inhabitants)
94 Km W of Crotone (62178 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 1.0 2023-09-25
22:44:54
39.0248 16.0435 7 2023-09-25
22:52:14
Sala Sismica INGV-Roma 121457381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-25 22:44:54 ± 0.16
Latitude 39.0248 ± 0.0054
Longitude 16.0435 ± 0.0104
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 121457381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 868
Semi-minor axis of confidence ellipse (meter) 506
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 76
Circular confidence region, given by single value of horizontal uncertainty (meter) 870.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 243
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) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.13490
Epicentral distance of station farthest from the epicenter (degree) 0.50812
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 121457381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-09-25 22:52:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CET2.HHZ. 2023-09-25T22:45:13.01 0.6 undecidable manual S 352 56.3991 50 -0.09 46
IV.SPS2.HHZ. 2023-09-25T22:45:08.50 0.3 undecidable manual S 41 38.9277 50 0.06 71
IV.CET2.HHZ. 2023-09-25T22:45:05.52 0.1 undecidable manual P 352 56.3991 50 0.2 89
IV.CAR1.HHZ. 2023-09-25T22:45:05.22 0.3 undecidable manual S 30 29.1486 104 0.09 72
IV.SPS2.HHZ. 2023-09-25T22:45:02.47 0.1 undecidable manual P 41 38.9277 50 -0.16 93
IV.GIZZ.HHZ. 2023-09-25T22:45:00.51 0.1 undecidable manual S 109 14.9739 115 0.04 99
IV.CAR1.HHZ. 2023-09-25T22:45:00.58 0.1 undecidable manual P 30 29.1486 104 -0.14 95
IV.GIZZ.HHZ. 2023-09-25T22:44:58.03 0.1 undecidable manual P 109 14.9739 115 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GIZZ.HHE. ML:1.2 0.000155 0.16 AML other m 2023-09-25T22:45:00.99
IV.GIZZ.HHN. ML:1.1 0.0001444795 0.2304 AML other m 2023-09-25T22:45:00.83
IV.CAR1.HNE. ML:1.2 0.00008094376 1.3184 AML other m 2023-09-25T22:45:05.67
IV.CAR1.HNN. ML:1.1 0.00006974264050000001 5.1584 AML other m 2023-09-25T22:45:05.12
IV.CAR1.HHE. ML:1.0 0.000050340755 1.92 AML other m 2023-09-25T22:45:05.66
IV.CAR1.HHN. ML:0.8 0.000029563575 2.1632 AML other m 2023-09-25T22:45:05.59
IV.SPS2.HHE. ML:0.1 0.0000072303775 2.6368 AML other m 2023-09-25T22:45:05.22
IV.SPS2.HHN. ML:0.1 0.0000074882055 0.32 AML other m 2023-09-25T22:45:10.16
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