Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 01-07-2021 and time 17:52:38 (Italy) in region Costa Siciliana nord orientale (Messina)

A magnitude ML 1.3 earthquake occured in region: Costa Siciliana nord orientale (Messina), on

  • 01-07-2021 15:52:38 (UTC)
  • 01-07-2021 17:52:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.3700, 14.6180 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
84 Km W of Messina (238439 inhabitants)
94 Km W of Reggio di Calabria (183035 inhabitants)
97 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 1.3 2021-07-01
15:52:38		 38.3703 14.6175 9 2021-12-29
11:12:52		 Bollettino Sismico Italiano INGV 97778421
Reviewed
Rev100 		ML 1.3 2021-07-01
15:52:38		 38.3618 14.6008 9 2021-07-01
15:57:55		 Sala Sismica INGV-Roma 92107391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-01 15:52:38 ± 0.11
Latitude 38.3703 ± 0.0081
Longitude 14.6175 ± 0.0103
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 97778421

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 964
Semi-minor axis of confidence ellipse (meter) 715
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 39
Circular confidence region, given by single value of horizontal uncertainty (meter) 960.0
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 15
Number of defining phases 15
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) 0.19605
Epicentral distance of station farthest from the epicenter (degree) 0.61693
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 97778421
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-11-25 11:31:59

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 92107391
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-01 15:57:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSLB.HHZ. 2021-07-01T15:53:00.72 0.6 undecidable manual S 226 68.4759 50 0.48 42
IV.MUCR.HHZ. 2021-07-01T15:52:52.99 0.6 undecidable manual S 148 42.624 50 -0.35 45
IV.CSLB.HHZ. 2021-07-01T15:52:51.57 0.3 undecidable manual P 226 68.4759 50 0.34 65
IV.MSFR.HHZ. 2021-07-01T15:52:51.56 0.6 undecidable manual S 183 37.4292 50 -0.38 45
IV.GIB.HHE. 2021-07-01T15:52:51.30 0.3 undecidable manual P 231 66.5778 50 0.36 65
IV.MCPD.HHZ. 2021-07-01T15:52:50.00 0.6 undecidable manual S 160 29.4483 106 0.43 45
IV.IACL.HHZ. 2021-07-01T15:52:49.07 0.6 undecidable manual S 308 29.0487 106 -0.35 46
IV.MUCR.HHZ. 2021-07-01T15:52:47.15 0.3 undecidable manual P 148 42.624 50 -0.1 72
IV.MSFR.HHZ. 2021-07-01T15:52:46.05 0.3 undecidable manual P 183 37.4292 50 -0.38 68
IV.IFIL.HHE. 2021-07-01T15:52:46.63 0.6 undecidable manual S 350 21.7671 111 -0.41 46
IV.IACL.HHZ. 2021-07-01T15:52:45.10 0.3 undecidable manual P 308 29.0487 106 0.12 73
IV.ILOS.HHE. 2021-07-01T15:52:45.68 0.3 undecidable manual P 74 29.9478 106 0.53 66
IV.IVPL.HHZ. 2021-07-01T15:52:45.60 0.6 undecidable manual P 89 31.5462 105 0.14 48
IV.MCPD.HHZ. 2021-07-01T15:52:44.63 0.1 undecidable manual P 160 29.4483 106 -0.44 91
IV.IFIL.HHE. 2021-07-01T15:52:43.65 0.1 undecidable manual P 350 21.7671 111 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.IACL.HHE. ML:1.7 0.000265 0.56 AML other m 2021-07-01T15:52:49.24
IV.IACL.HHN. ML:1.8 0.0002875 0.26 AML other m 2021-07-01T15:52:50.53
IV.MCPD.HHE. ML:1.0 0.00004915 0.8 AML other m 2021-07-01T15:52:50.61
IV.MCPD.HHN. ML:1.3 0.00009825 0.42 AML other m 2021-07-01T15:52:51.31
IV.MUCR.HHE. ML:1.1 0.000039649999999999995 1 AML other m 2021-07-01T15:52:54.40
IV.MUCR.HHN. ML:1.3 0.0000671 0.66 AML other m 2021-07-01T15:52:55.22
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