Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 22-09-2023 and time 21:54:11 (Italy) in region 5 km SE Reggio di Calabria (RC)

A magnitude ML 1.2 earthquake occured in region: 5 km SE Reggio di Calabria (RC), on

  • 22-09-2023 19:54:11 (UTC)
  • 22-09-2023 21:54:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.0740, 15.6770 at 11 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
Reggio di Calabria RC 5 183035 183035
Cardeto RC 8 1641 184676
Motta San Giovanni RC 8 6208 190884
Montebello Ionico RC 12 6214 197098
Laganadi RC 13 413 197511
Calanna RC 13 934 198445
Sant'Alessio in Aspromonte RC 13 343 198788
Bagaladi RC 14 1039 199827
Santo Stefano in Aspromonte RC 15 1263 201090
Fiumara RC 15 1018 202108
San Lorenzo RC 16 2640 204748
Campo Calabro RC 16 4536 209284
San Roberto RC 16 1750 211034
Villa San Giovanni RC 17 13784 224818
Messina ME 17 238439 463257
Condofuri RC 18 5113 468370
Roghudi RC 18 1104 469474
Scaletta Zanclea ME 19 2140 471614
Melito di Porto Salvo RC 19 11355 482969
Roccaforte del Greco RC 20 476 483445

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km SE of Reggio di Calabria (183035 inhabitants)
17 Km SE of Messina (238439 inhabitants)
68 Km NE of Acireale (52622 inhabitants)
82 Km NE of Catania (314555 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 1.2 2023-09-22
19:54:11		 38.0737 15.6767 11 2023-09-22
20:01:36		 Sala Sismica INGV-Roma 121371831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-22 19:54:11 ± 0.07
Latitude 38.0737 ± 0.0018
Longitude 15.6767 ± 0.0069
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 121371831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 612
Semi-minor axis of confidence ellipse (meter) 241
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 273
Circular confidence region, given by single value of horizontal uncertainty (meter) 610.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 184
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.29678
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 121371831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-09-22 20:01:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SOI.EHZ. 2023-09-22T19:54:23.04 0.6 undecidable manual S 90 32.9448 90 -0.01 48
IV.SICLA.EHZ. 2023-09-22T19:54:19.50 0.3 undecidable manual S 9 20.5683 90 -0.23 70
IV.MPAZ.HHE. 2023-09-22T19:54:18.14 0.3 undecidable manual P 115 31.746 90 0.03 72
IV.SOI.EHZ. 2023-09-22T19:54:18.20 0.1 undecidable manual P 90 32.9448 90 -0.09 94
IT.SAAM.HNZ. 2023-09-22T19:54:17.65 0.1 undecidable manual S 33 13.1757 100 -0.12 98
IV.MRCB.HHZ. 2023-09-22T19:54:16.90 0.3 undecidable manual S 13 10.0788 120 -0.1 74
IV.SICLA.EHZ. 2023-09-22T19:54:16.46 0.1 positive manual P 9 20.5683 90 0.08 97
IV.MTTG.HHZ. 2023-09-22T19:54:16.42 0.1 undecidable manual S 165 8.0808 130 -0.14 98
IT.LAZR.HNZ. 2023-09-22T19:54:16.92 0.3 undecidable manual S 185 10.6782 116 -0.22 72
IT.SAAM.HNZ. 2023-09-22T19:54:15.32 0.1 undecidable manual P 33 13.1757 100 0.08 98
IV.NOV.HHZ. 2023-09-22T19:54:15.74 3.0 undecidable manual P 0
IT.ARMO.HNZ. 2023-09-22T19:54:15.88 0.1 undecidable manual S 85 3.0969 159 0.08 99
IY.CNDF.HHE.00 2023-09-22T19:54:15.99 0.1 undecidable manual P 116 17.5713 91 0.06 98
IV.MTTG.HHZ. 2023-09-22T19:54:14.67 0.1 undecidable manual P 165 8.0808 130 0.12 98
IT.LAZR.HNZ. 2023-09-22T19:54:14.88 0.1 undecidable manual P 185 10.6782 116 0 100
IV.MRCB.HHZ. 2023-09-22T19:54:14.93 0.1 undecidable manual P 13 10.0788 120 0.13 97
IT.ARMO.HNZ. 2023-09-22T19:54:14.32 0.1 undecidable manual P 85 3.0969 159 0.21 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTTG.HHN. ML:1.5 0.000451 0.56 AML other m 2023-09-22T19:54:16.59
IV.MTTG.HHE. ML:1.3 0.00026450000000000003 0.46 AML other m 2023-09-22T19:54:16.62
IV.MRCB.HHE. ML:1.4 0.0003195 1.52 AML other m 2023-09-22T19:54:16.15
IV.MRCB.HHN. ML:1.2 0.000184 0.76 AML other m 2023-09-22T19:54:17.00
IV.SOI.EHE. ML:0.9 0.00003347783 0.9344 AML other m 2023-09-22T19:54:23.53
IV.SOI.EHN. ML:0.9 0.000034549200000000005 0.9216 AML other m 2023-09-22T19:54:24.83
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