Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 30-04-2023 and time 16:57:29 (Italy) in region 5 km E Marcedusa (CZ)

A magnitude ML 1.0 earthquake occured in region: 5 km E Marcedusa (CZ), on

  • 30-04-2023 14:57:29 (UTC)
  • 30-04-2023 16:57:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.0260, 16.8970 at 10 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
Marcedusa CZ 5 448 448
Cutro KR 7 10541 10989
San Mauro Marchesato KR 9 2157 13146
Belcastro CZ 9 1399 14545
Botricello CZ 10 5220 19765
Mesoraca KR 11 6523 26288
Andali CZ 11 769 27057
Cropani CZ 12 4778 31835
Scandale KR 12 3169 35004
Petronà CZ 12 2629 37633
Roccabernarda KR 12 3393 41026
Petilia Policastro KR 13 9173 50199
Cerva CZ 13 1223 51422
Santa Severina KR 14 2131 53553
Sersale CZ 15 4630 58183
Isola di Capo Rizzuto KR 19 17643 75826
Sellia Marina CZ 19 7513 83339

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km W of Crotone (62178 inhabitants)
29 Km E of Catanzaro (90612 inhabitants)
50 Km E of Lamezia Terme (70714 inhabitants)
63 Km SE of Cosenza (67546 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 2023-04-30
14:57:29		 39.0255 16.8973 11 2023-04-30
15:02:41		 Sala Sismica INGV-Roma 116907641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-30 14:57:29 ± 0.27
Latitude 39.0255 ± 0.0081
Longitude 16.8973 ± 0.0162
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 116907641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1408
Semi-minor axis of confidence ellipse (meter) 873
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 274
Circular confidence region, given by single value of horizontal uncertainty (meter) 1410.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 220
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
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) 0.16278
Epicentral distance of station farthest from the epicenter (degree) 0.67809
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 116907641
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-30 15:02:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CELI.HHZ. 2023-04-30T14:57:46.20 0.3 undecidable manual S 322 53.502 50 0.13 69
IV.GRI.EHZ. 2023-04-30T14:57:44.18 0.3 undecidable manual S 241 46.9197 50 -0.14 70
IV.PLAC.HHE. 2023-04-30T14:57:42.67 0.1 undecidable manual P 212 75.2691 50 0.39 83
IV.SELL.HHZ. 2023-04-30T14:57:38.22 0.6 undecidable manual S 259 23.6541 50 0.11 49
IV.GRI.EHZ. 2023-04-30T14:57:38.31 1.0 negative manual P 241 46.9197 50 0.38 22
IV.CELI.HHZ. 2023-04-30T14:57:38.87 0.6 negative manual P 322 53.502 50 -0.06 47
IV.PIPA.HHZ. 2023-04-30T14:57:38.26 1.0 undecidable manual P 352 51.5151 50 -0.36 22
IY.CHCE.HHE.00 2023-04-30T14:57:38.82 0.3 undecidable manual P 228 56.3991 50 -0.55 62
IV.SERS.HHZ. 2023-04-30T14:57:36.42 0.6 undecidable manual S 274 18.0708 120 0 50
IV.SELL.HHZ. 2023-04-30T14:57:34.31 0.1 negative manual P 259 23.6541 50 -0.03 99
IV.SERS.HHZ. 2023-04-30T14:57:33.39 0.1 negative manual P 274 18.0708 120 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SERS.HHE. ML:1.0 0.00008105 0.66 AML other m 2023-04-30T14:57:36.89
IV.SERS.HHN. ML:1.1 0.00010135 0.38 AML other m 2023-04-30T14:57:36.74
IV.SELL.HHE. ML:0.8 0.000034 0.52 AML other m 2023-04-30T14:57:39.11
IV.SELL.HHN. ML:0.7 0.0000307 1 AML other m 2023-04-30T14:57:41.95
IV.PIPA.HHE. ML:1.2 0.000043049999999999996 0.42 AML other m 2023-04-30T14:57:49.59
IV.PIPA.HHN. ML:1.0 0.00002615 0.5 AML other m 2023-04-30T14:57:52.65
IV.SERS.HNE. ML:1.0 0.00007927198499999999 0.2944 AML other m 2023-04-30T14:57:37.95
IV.SERS.HNN. ML:0.9 0.00006502736000000001 0.2176 AML other m 2023-04-30T14:57:36.89
IV.SELL.HNE. ML:1.2 0.00010292812499999999 0.3584 AML other m 2023-04-30T14:57:39.20
IV.SELL.HNN. ML:1.2 0.000094875985 0.3712 AML other m 2023-04-30T14:57:41.46
IV.GRI.EHE. ML:1.1 0.000036836365499999994 0.2048 AML other m 2023-04-30T14:57:48.09
IV.GRI.EHN. ML:1.2 0.00004230034 0.3968 AML other m 2023-04-30T14:57:46.48
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