Earthquake with magnitude of ML 1.5 on date 31-08-2021 and time 09:24:06 (Italy) in region Costa Siciliana nord orientale (Messina)

A magnitude ML 1.5 earthquake occured in region: Costa Siciliana nord orientale (Messina), on

  • 31-08-2021 07:24:06 (UTC)
  • 31-08-2021 09:24:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.37, 14.609 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
85 Km W of Messina (238439 inhabitants)
95 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 1.5 2021-08-31
07:24:06
38.3697 14.6087 10 2021-12-29
11:12:50
Bollettino Sismico Italiano INGV 97257931
Reviewed
Rev100
ML 1.6 2021-08-31
07:24:06
38.3547 14.5902 10 2021-08-31
07:34:46
Sala Sismica INGV-Roma 94856501
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-31 07:24:06 ± 0.13
Latitude 38.3697 ± 0.0063
Longitude 14.6087 ± 0.0069
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 97257931

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 592
Semi-minor axis of confidence ellipse (meter) 565
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 10
Circular confidence region, given by single value of horizontal uncertainty (meter) 590
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 82
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
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) 0.19605
Epicentral distance of station farthest from the epicenter (degree) 0.63222
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 97257931
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-12-14 10:36:36

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 94856501
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-31 07:34:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CSLB.HHZ. 2021-08-31T07:24:27.65 0.6 undecidable manual S 225 0.6115 50 0.12 60
IV.PLLN.EHN. 2021-08-31T07:24:25.40 0.6 undecidable manual S 224 0.5252 50 0.43 57
IV.NOV.HHZ. 2021-08-31T07:24:25.73 0.6 undecidable manual S 129 0.5369 50 0.4 57
IV.MUCR.HHZ. 2021-08-31T07:24:20.60 0.6 undecidable manual S 147 0.3876 50 -0.29 61
IV.MPNC.HHN. 2021-08-31T07:24:19.32 0.6 undecidable manual P 111 0.625 50 0.33 57
IV.AIO.HHE. 2021-08-31T07:24:19.72 1.0 undecidable manual P 129 0.6322 50 0.62 26
IV.CSLB.HHZ. 2021-08-31T07:24:18.97 0.6 undecidable manual P 225 0.6115 50 0.22 59
IV.GIB.HHE. 2021-08-31T07:24:18.97 1.0 undecidable manual P 231 0.5945 50 0.51 28
IV.IVPL.HHZ. 2021-08-31T07:24:18.16 0.6 undecidable manual S 89 0.2914 50 0.12 64
IV.PLLN.EHN. 2021-08-31T07:24:17.75 0.6 undecidable manual P 224 0.5252 50 0.47 57
IV.NOV.HHZ. 2021-08-31T07:24:17.48 1.0 undecidable manual P 129 0.5369 50 -0.01 31
IV.MCPD.HHZ. 2021-08-31T07:24:17.21 0.3 undecidable manual S 159 0.2671 50 -0.12 96
IV.IACL.HHZ. 2021-08-31T07:24:16.76 0.3 undecidable manual S 310 0.2572 50 -0.27 94
IV.IFIL.HHZ. 2021-08-31T07:24:15.15 0.3 undecidable manual S 352 0.1961 115 0.03 99
IV.MUCR.HHZ. 2021-08-31T07:24:14.71 0.3 undecidable manual P 147 0.3876 50 -0.21 92
IV.IVPL.HHZ. 2021-08-31T07:24:13.58 0.3 undecidable manual P 89 0.2914 50 0.31 92
IV.MSFR.HHZ. 2021-08-31T07:24:13.65 0.3 undecidable manual P 182 0.3354 50 -0.39 90
IV.IACL.HHZ. 2021-08-31T07:24:12.58 0.6 undecidable manual P 310 0.2572 50 -0.11 64
IV.ILOS.HHZ. 2021-08-31T07:24:12.85 0.6 undecidable manual P 74 0.277 50 -0.18 63
IV.MCPD.HHZ. 2021-08-31T07:24:12.22 0.3 undecidable manual P 159 0.2671 50 -0.65 84
IV.IFIL.HHZ. 2021-08-31T07:24:11.59 0.3 undecidable manual P 352 0.1961 115 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.IFIL.HHN. ML:1.8 0.0003734954 0.2208 AML other m 2021-08-31T07:24:15.35
IV.IFIL.HHE. ML:2.2 0.00112617995 0.1824 AML other m 2021-08-31T07:24:15.48
IV.IACL.HHE. ML:1.8 0.00029707315 0.16 AML other m 2021-08-31T07:24:17.60
IV.IACL.HHN. ML:1.7 0.000248797 0.16 AML other m 2021-08-31T07:24:17.79
IV.MCPD.HHN. ML:1.2 6.953294E-5 0.16 AML other m 2021-08-31T07:24:18.10
IV.MCPD.HHE. ML:1 5.588457E-5 1.5616 AML other m 2021-08-31T07:24:18.64
IV.IVPL.HHN. ML:1.3 9.1941765E-5 1.36 AML other m 2021-08-31T07:24:18.99
IV.IVPL.HHE. ML:1.4 0.000112411145 1.2416 AML other m 2021-08-31T07:24:19.19
IV.MUCR.HHE. ML:0 6.928923E-5 0.4416 AML other m 2021-08-31T07:24:23.67
IV.MUCR.HHN. ML:0 8.3715115E-5 0.4192 AML other m 2021-08-31T07:24:22.56
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