Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 04-07-2020 and time 23:53:28 (Italy) in region Isole Eolie (Messina)

A magnitude ML 2.3 earthquake occured in region: Isole Eolie (Messina), on

  • 04-07-2020 21:53:28 (UTC)
  • 04-07-2020 23:53:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.37, 14.89 at 13 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.

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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
Lipari ME 13 12753 12753

Municipalities with at least 50000 inhabitants

An earthquake occurred to
61 Km W of Messina (238439 inhabitants)
72 Km W of Reggio di Calabria (183035 inhabitants)
87 Km N of Acireale (52622 inhabitants)
97 Km N 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
Bulletin
Rev1000 		ML 2.3 2020-07-04
21:53:28		 38.37 14.89 13 2020-11-19
12:37:03		 Bollettino Sismico Italiano INGV 83559381
Reviewed
Rev200 		ML 1.8 2020-07-04
21:53:27		 38.34 14.89 14 2020-10-06
16:33:46		 Sala Operativa INGV_OE (Catania) 80783001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-04 21:53:28 ± 0.13
Latitude 38.37 ± 0.01
Longitude 14.89 ± 0.01
Depth (km) 13 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83559381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 754
Semi-minor axis of confidence ellipse (meter) 689
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 30
Circular confidence region, given by single value of horizontal uncertainty (meter) 750
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 80
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.06205
Epicentral distance of station farthest from the epicenter (degree) 0.99285
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 80783001
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2020-07-04 22:03:04

ML:2.3

Field Value
Value 2.3
Uncertainty 0.4
Num. used stations 14
Type of magnitude ML
Reference to an origin 83559381
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-06 16:33:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SCIAR.HHZ. 2020-07-04T21:53:46.00 0.3 undecidable manual P 245 0.9929 91 -0.54 56
IV.IACL.HHZ. 2020-07-04T21:53:44.08 0.6 undecidable manual S 292 0.4515 92 0.11 46
IV.MPNC.HHZ. 2020-07-04T21:53:43.99 0.6 undecidable manual S 121 0.4236 92 0.85 38
IV.JOPP.HHZ. 2020-07-04T21:53:43.04 0.3 undecidable manual P 73 0.8139 91 -0.43 59
IV.CSLB.HHZ. 2020-07-04T21:53:43.05 0.3 undecidable manual P 237 0.7824 91 0.11 64
MN.CEL.HHZ. 2020-07-04T21:53:42.82 0.1 undecidable manual P 97 0.7932 91 -0.29 82
IV.GALF.HHZ. 2020-07-04T21:53:42.88 0.6 undecidable manual P 201 0.7033 91 1.31 28
IV.MSFR.HHZ. 2020-07-04T21:53:42.45 0.6 undecidable manual S 215 0.4074 93 -0.2 46
IV.MUCR.HHZ. 2020-07-04T21:53:40.32 0.6 undecidable manual S 182 0.3238 94 0.14 47
IV.IFIL.HHZ. 2020-07-04T21:53:40.26 0.6 undecidable manual S 309 0.3166 94 0.28 45
IV.EPZF.HHZ. 2020-07-04T21:53:39.60 0.6 undecidable manual P 183 0.5423 92 0.77 38
IV.IACL.HHZ. 2020-07-04T21:53:37.22 0.1 undecidable manual P 292 0.4515 92 -0.05 93
IV.AIO.HHZ. 2020-07-04T21:53:37.92 0.3 undecidable manual P 146 0.4775 92 0.21 68
IV.MSFR.HHZ. 2020-07-04T21:53:36.31 0.1 undecidable manual P 215 0.4074 93 -0.2 91
IV.MPNC.HHZ. 2020-07-04T21:53:36.64 0.3 undecidable manual P 121 0.4236 92 -0.15 68
IV.ILOS.HHZ. 2020-07-04T21:53:34.11 0.6 undecidable manual S 29 0.0908 129 0.56 44
IV.MUCR.HHZ. 2020-07-04T21:53:34.85 0.1 negative manual P 182 0.3238 94 -0.23 92
IV.IFIL.HHZ. 2020-07-04T21:53:34.89 0.3 undecidable manual P 309 0.3166 94 -0.08 71
IV.IVPL.HHZ. 2020-07-04T21:53:33.21 0.6 undecidable manual S 82 0.0701 139 0.11 50
IV.IVUG.HHZ. 2020-07-04T21:53:32.88 0.6 undecidable manual S 68 0.08 134 -0.42 46
IV.IVGP.HHN. 2020-07-04T21:53:32.40 0.6 undecidable manual S 61 0.0621 143 -0.56 45
IV.IVPL.HHZ. 2020-07-04T21:53:31.08 0.1 positive manual P 82 0.0701 139 0.08 100
IV.ILOS.HHZ. 2020-07-04T21:53:31.60 0.1 undecidable manual P 29 0.0908 129 0.34 94
IV.IVUG.HHZ. 2020-07-04T21:53:31.05 0.1 undecidable manual P 68 0.08 134 -0.07 99
IV.IVGP.HHN. 2020-07-04T21:53:30.83 0.1 undecidable manual P 61 0.0621 143 -0.09 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.IVPL.HHE. ML:2 0.001275 0.26 AML other m 2020-07-04T21:53:33.48
IV.IVPL.HHN. ML:2 0.0013505 0.98 AML other m 2020-07-04T21:53:33.84
IV.ILOS.HHE. ML:3.1 0.0136 0.24 AML other m 2020-07-04T21:53:34.68
IV.ILOS.HHN. ML:3.4 0.0268 0.32 AML other m 2020-07-04T21:53:34.71
IV.IFIL.HHE. ML:3.1 0.00472 0.4 AML other m 2020-07-04T21:53:41.70
IV.IFIL.HHN. ML:2.8 0.002245 1.26 AML other m 2020-07-04T21:53:41.14
IV.MUCR.HHN. ML:1.9 0.000327 1.76 AML other m 2020-07-04T21:53:42.06
IV.MUCR.HHE. ML:1.7 0.000186 1.16 AML other m 2020-07-04T21:53:43.87
IV.MPNC.HHN. ML:2.2 0.0004905 1.6 AML other m 2020-07-04T21:53:44.96
IV.IACL.HHE. ML:2.5 0.000832 0.18 AML other m 2020-07-04T21:53:45.11
IV.IACL.HHN. ML:2.6 0.000999 0.96 AML other m 2020-07-04T21:53:46.74
IV.MPNC.HHE. ML:2.3 0.0005025 0.56 AML other m 2020-07-04T21:53:47.22
IV.AIO.HHE. ML:1.9 0.000198 0.38 AML other m 2020-07-04T21:53:48.08
IV.AIO.HHN. ML:2 0.000233 0.18 AML other m 2020-07-04T21:53:48.81
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download