Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 25-10-2020 and time 02:16:55 (UTC) in region Costa Siciliana nord orientale (Messina)

A magnitude ML 1.8 earthquake occured in region: Costa Siciliana nord orientale (Messina), on

  • 25-10-2020 02:16:55 (UTC)
  • 25-10-2020 03:16:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.39, 14.59 at 8 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
87 Km W of Messina (238439 inhabitants)
97 Km W of Reggio di Calabria (183035 inhabitants)
100 Km NW of Acireale (52622 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 1.8 2020-10-25
02:16:55		 38.39 14.59 8 2021-02-26
14:56:19		 Bollettino Sismico Italiano INGV 87178311
Reviewed
Rev100 		ML 1.8 2020-10-25
02:16:55		 38.39 14.6 5 2020-10-25
03:57:08		 Sala Sismica INGV-Roma 84107721
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-25 02:16:55 ± 0.13
Latitude 38.39 ± 0.02
Longitude 14.59 ± 0.01
Depth (km) 8 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87178311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2432
Semi-minor axis of confidence ellipse (meter) 554
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 18
Circular confidence region, given by single value of horizontal uncertainty (meter) 2430
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.17087
Epicentral distance of station farthest from the epicenter (degree) 0.62143
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 87178311
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-24 12:46:31

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 84107721
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-25 03:57:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CSLB.HHZ. 2020-10-25T02:17:18.25 0.6 undecidable manual S 223 0.6214 50 1.15 32
IV.MUCR.HHZ. 2020-10-25T02:17:10.51 0.6 undecidable manual S 148 0.4137 50 -0.45 44
IV.MSFR.HHE. 2020-10-25T02:17:09.08 0.3 undecidable manual S 180 0.3597 50 -0.28 70
IV.CSLB.HHZ. 2020-10-25T02:17:08.44 0.3 undecidable manual P 223 0.6214 50 0.47 63
IV.IVPL.HHZ. 2020-10-25T02:17:07.29 0.6 undecidable manual S 93 0.3031 103 -0.15 48
IV.PLLN.EHN. 2020-10-25T02:17:07.19 0.6 undecidable manual P 222 0.5351 50 0.69 40
IV.IVUG.HHZ. 2020-10-25T02:17:07.85 0.6 undecidable manual S 90 0.3067 103 0.26 47
IV.ILOS.HHZ. 2020-10-25T02:17:07.52 0.6 undecidable manual S 79 0.2815 104 0.86 39
IV.MUCR.HHZ. 2020-10-25T02:17:04.18 0.1 undecidable manual P 148 0.4137 50 -0.24 93
IV.IACL.HHZ. 2020-10-25T02:17:04.73 0.3 undecidable manual S 307 0.2329 106 -0.12 74
IV.MSFR.HHE. 2020-10-25T02:17:03.04 0.3 undecidable manual P 180 0.3597 50 -0.46 67
IV.ILOS.HHZ. 2020-10-25T02:17:02.43 0.3 undecidable manual P 79 0.2815 104 0.49 67
IV.IVPL.HHZ. 2020-10-25T02:17:02.38 0.3 undecidable manual P 93 0.3031 103 -0.01 74
IV.IFIL.HHZ. 2020-10-25T02:17:02.50 0.3 undecidable manual S 355 0.1709 112 -0.08 75
IV.IVUG.HHZ. 2020-10-25T02:17:02.19 0.3 undecidable manual P 90 0.3067 103 -0.28 70
IV.IVGP.HHZ. 2020-10-25T02:17:01.84 0.3 undecidable manual P 89 0.2869 104 -0.21 72
IV.IACL.HHZ. 2020-10-25T02:17:00.75 0.1 negative manual P 307 0.2329 106 -0.14 98
IV.IFIL.HHZ. 2020-10-25T02:16:59.48 0.1 undecidable manual P 355 0.1709 112 -0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.IFIL.HHE. ML:2.4 0.00186476895 0.16 AML other m 2020-10-25T02:17:03.99
IV.IACL.HHN. ML:1.8 0.0003310129 0.24 AML other m 2020-10-25T02:17:05.84
IV.IFIL.HHN. ML:1.9 0.00066239825 0.24 AML other m 2020-10-25T02:17:06.37
IV.IACL.HHE. ML:1.8 0.0003647521 0.2592 AML other m 2020-10-25T02:17:06.62
IV.IVPL.HHN. ML:1.8 0.00028044245 1.2784 AML other m 2020-10-25T02:17:06.64
IV.IVPL.HHE. ML:1.8 0.00026921985 0.96 AML other m 2020-10-25T02:17:11.54
IV.MUCR.HHE. ML:1.5 8.5850635E-5 0.36 AML other m 2020-10-25T02:17:12.03
IV.MUCR.HHN. ML:1.6 0.00010635 0.32 AML other m 2020-10-25T02:17:13.54
IV.PETRA.HHE. ML:1.8 9.69E-5 1.38 AML other m 2020-10-25T02:17:14.29
IV.PETRA.HHN. ML:2 0.000135 1.1 AML other m 2020-10-25T02:17:41.42
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