Earthquake with magnitude of ML 1.4 on date 01-04-2023 and time 13:37:52 (Italy) in region 5 km NW San Giovanni in Fiore (CS)

A magnitude ML 1.4 earthquake occured in region: 5 km NW San Giovanni in Fiore (CS), on

  • 01-04-2023 11:37:52 (UTC)
  • 01-04-2023 13:37:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.2970, 16.6690 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
San Giovanni in Fiore CS 5 17372 17372
Castelsilano KR 9 1015 18387
Savelli KR 10 1271 19658
Cerenzia KR 11 1152 20810
Cotronei KR 12 5480 26290
Caccuri KR 12 1663 27953
Bocchigliero CS 16 1298 29251
Verzino KR 17 1851 31102
Longobucco CS 18 3183 34285
Campana CS 19 1813 36098

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Cosenza (67546 inhabitants)
44 Km N of Catanzaro (90612 inhabitants)
46 Km NW of Crotone (62178 inhabitants)
47 Km NE of Lamezia Terme (70714 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
Bulletin
Rev1000
ML 1.4 2023-04-01
11:37:52
39.297 16.6687 10 2024-03-01
17:18:04
Bollettino Sismico Italiano INGV 116605171
Reviewed
Rev100
ML 1.5 2023-04-01
11:37:51
39.2852 16.6722 8 2023-04-01
11:46:22
Sala Sismica INGV-Roma 115944071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-01 11:37:52 ± 0.15
Latitude 39.2970 ± 0.0117
Longitude 16.6687 ± 0.0093
Depth (km) 10 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116605171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1291
Semi-minor axis of confidence ellipse (meter) 797
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 13
Circular confidence region, given by single value of horizontal uncertainty (meter) 1290.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 155
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.16278
Epicentral distance of station farthest from the epicenter (degree) 0.35613
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 115944071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-01 11:46:22

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 116605171
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-14 00:30:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAR1.HHZ. 2023-04-01T11:38:05.06 0.6 undecidable manual S 263 39.5271 50 -0.22 47
IV.SELL.HHZ. 2023-04-01T11:38:04.37 0.3 undecidable manual S 186 35.0427 50 0.31 69
IV.SPS2.HHZ. 2023-04-01T11:38:02.05 0.3 undecidable manual S 269 28.3494 50 -0.23 71
IV.PIPA.HHZ. 2023-04-01T11:38:01.33 0.3 undecidable manual S 31 24.3534 112 0.19 72
IV.CELI.HHZ. 2023-04-01T11:37:59.22 0.3 undecidable manual S 311 18.0708 119 0.07 75
IV.CAR1.HHZ. 2023-04-01T11:37:59.85 0.3 undecidable manual P 263 39.5271 50 0.18 70
IV.SPS2.HHZ. 2023-04-01T11:37:58.42 0.3 undecidable manual P 269 28.3494 50 0.48 67
IV.SELL.HHZ. 2023-04-01T11:37:58.63 0.1 undecidable manual P 186 35.0427 50 -0.34 92
IV.PIPA.HHZ. 2023-04-01T11:37:57.06 0.1 undecidable manual P 31 24.3534 112 -0.22 96
IV.CELI.HHZ. 2023-04-01T11:37:56.07 0.1 undecidable manual P 311 18.0708 119 -0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CELI.HHE. ML:1.2 0.00011698376 0.1408 AML other m 2023-04-01T11:37:59.45
IV.CELI.HHN. ML:1.3 0.00017292744999999998 0.2816 AML other m 2023-04-01T11:37:59.57
IV.CELI.HNE. ML:1.1 0.000111532295 0.16 AML other m 2023-04-01T11:37:59.63
IV.CELI.HNN. ML:1.3 0.00018119305000000003 0.256 AML other m 2023-04-01T11:37:59.74
IV.PIPA.HHN. ML:1.4 0.000163359065 0.3584 AML other m 2023-04-01T11:38:02.55
IV.SELL.HHN. ML:1.2 0.0000692 0.4 AML other m 2023-04-01T11:38:05.38
IV.SELL.HNN. ML:1.8 0.000247 0.42 AML other m 2023-04-01T11:38:05.59
IV.SELL.HNE. ML:1.9 0.0003035 1.5 AML other m 2023-04-01T11:38:05.96
IV.SELL.HHE. ML:1.4 0.000097 1.5 AML other m 2023-04-01T11:38:05.96
IV.PIPA.HHE. ML:1.5 0.0001905 0.24 AML other m 2023-04-01T11:38:06.05
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