Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 20-08-2014 and time 04:07:53 (Italy) in region Costa Siciliana nord orientale (Messina)

A magnitude ML 2.1 earthquake occured in region: Costa Siciliana nord orientale (Messina), on

  • 20-08-2014 02:07:53 (UTC)
  • 20-08-2014 04:07:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.3940, 15.4030 at 116 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
Villafranca Tirrena ME 18 8584 8584
Spadafora ME 19 5021 13605
Venetico ME 20 3911 17516

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km NW of Messina (238439 inhabitants)
38 Km NW of Reggio di Calabria (183035 inhabitants)
89 Km N 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 2.1 2014-08-20
02:07:53		 38.3938 15.4028 116 2015-09-21
09:39:02		 Bollettino Sismico Italiano INGV 18403321
Reviewed
Rev100 		ML 2.1 2014-08-20
02:07:52		 38.3762 15.3648 120 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 7893801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-08-20 02:07:53 ± 0.2
Latitude 38.3938 ± 0.0144
Longitude 15.4028 ± 0.0149
Depth (km) 116 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 18403321

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1469
Semi-minor axis of confidence ellipse (meter) 1206
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 157
Circular confidence region, given by single value of horizontal uncertainty (meter) 1470.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 129
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.15378
Epicentral distance of station farthest from the epicenter (degree) 1.32560
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.1
Num. used stations 1
Type of magnitude ML
Reference to an origin 18403321
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-14 13:51:14

ML:2.1

Field Value
Value 2.1
Uncertainty 0.1
Num. used stations 1
Type of magnitude ML
Reference to an origin 7893801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-08-20 02:18:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PLAC.HHZ. 2014-08-20T02:08:28.80 0.3 undecidable manual S 86 90.243 139 0.51 63
IV.MPAZ.HHZ. 2014-08-20T02:08:25.80 0.6 undecidable manual S 133 71.8725 145 -0.06 47
IV.SOI.EHZ. 2014-08-20T02:08:25.20 0.6 undecidable manual S 122 66.9774 147 -0.08 48
MN.CEL.HHE. 2014-08-20T02:08:23.10 0.6 undecidable manual S 109 45.2214 157 0.02 50
IV.JOPP.HHZ. 2014-08-20T02:08:23.30 0.3 undecidable manual S 60 48.1185 156 -0.03 74
IV.ATN.BHE. 2014-08-20T02:08:22.00 0.3 undecidable manual S 168 26.5512 166 0.21 75
IV.MPNC.HHE. 2014-08-20T02:08:22.40 0.6 undecidable manual S 189 27.75 165 0.54 46
IV.MILZ.HHZ. 2014-08-20T02:08:21.40 0.3 undecidable manual S 228 20.1687 169 -0.1 78
IV.MSRU.HHZ. 2014-08-20T02:08:21.00 0.3 undecidable manual S 148 17.0718 171 -0.38 73
IV.CELI.HHE. 2014-08-20T02:08:19.29 0.3 undecidable manual P 40 147.1416 124 0.48 56
IV.SERS.HHZ. 2014-08-20T02:08:17.17 0.6 undecidable manual P 57 132.1677 127 -0.12 41
IV.CAR1.HHE. 2014-08-20T02:08:15.79 0.3 undecidable manual P 36 118.1928 131 -0.16 63
IV.PLAC.HHZ. 2014-08-20T02:08:13.59 0.1 negative manual P 86 90.243 139 0.13 91
IV.MPAZ.HHZ. 2014-08-20T02:08:11.86 0.1 undecidable manual P 133 71.8725 145 -0.2 92
IV.SOI.EHZ. 2014-08-20T02:08:11.46 0.1 undecidable manual P 122 66.9774 147 -0.26 92
IV.NOV.HHE. 2014-08-20T02:08:11.02 0.1 undecidable manual P 210 46.8198 156 0.49 90
IV.MUCR.HHE. 2014-08-20T02:08:11.27 0.3 undecidable manual P 230 60.2952 150 -0.03 74
IV.MPNC.HHE. 2014-08-20T02:08:10.43 0.3 undecidable manual P 189 27.75 165 0.68 65
IV.JOPP.HHZ. 2014-08-20T02:08:10.45 0.1 undecidable manual P 60 48.1185 156 -0.15 97
IV.MCSR.HHE. 2014-08-20T02:08:10.36 0.1 undecidable manual P 202 39.5271 160 0.17 98
MN.CEL.HHE. 2014-08-20T02:08:10.50 0.3 undecidable manual P 109 45.2214 157 0.05 75
IV.MTTG.HHZ. 2014-08-20T02:08:10.72 0.1 undecidable manual P 149 50.5161 154 0 100
IV.ATN.BHE. 2014-08-20T02:08:09.52 0.3 undecidable manual P 168 26.5512 166 -0.19 75
IV.MILZ.HHZ. 2014-08-20T02:08:09.22 0.3 undecidable manual P 228 20.1687 169 -0.32 74
IV.IVPL.HHE. 2014-08-20T02:08:09.90 0.3 undecidable manual P 267 36.8298 161 -0.18 74
IV.MSRU.HHZ. 2014-08-20T02:08:08.97 0.1 undecidable manual P 148 17.0718 171 -0.51 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MILZ.HHN. ML:2.1 0.0000932 0.92 AML other m 2014-08-20T02:08:12.36
IV.MILZ.HHE. ML:2.2 0.00011 1.02 AML other m 2014-08-20T02:08:23.29
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
Waveforms Seismic signals in miniseed + resp format Download