Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 30-04-2013 and time 10:50:35 (UTC) in region Costa Siciliana nord orientale (Messina)

A magnitude ML 1.7 earthquake occured in region: Costa Siciliana nord orientale (Messina), on

  • 30-04-2013 10:50:35 (UTC)
  • 30-04-2013 12:50:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.3420, 15.3470 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
Spadafora ME 13 5021 5021
Venetico ME 14 3911 8932
Villafranca Tirrena ME 14 8584 17516
Milazzo ME 16 31646 49162
Valdina ME 17 1355 50517
Torregrotta ME 17 7431 57948
Roccavaldina ME 18 1133 59081
Saponara ME 18 3988 63069
Pace del Mela ME 18 6239 69308
Condrò ME 18 493 69801
Rometta ME 20 6650 76451
Gualtieri Sicaminò ME 20 1807 78258

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NW of Messina (238439 inhabitants)
37 Km NW of Reggio di Calabria (183035 inhabitants)
83 Km N of Acireale (52622 inhabitants)
96 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 1.7 2013-04-30
10:50:35		 38.3418 15.3467 116 2015-01-20
11:25:37		 Bollettino Sismico Italiano INGV 5358341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-04-30 10:50:35 ± 0.48
Latitude 38.3418 ± 0.0369
Longitude 15.3467 ± 0.0378
Depth (km) 116 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 5358341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3943
Semi-minor axis of confidence ellipse (meter) 3318
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 186
Circular confidence region, given by single value of horizontal uncertainty (meter) 3940.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 150
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.11511
Epicentral distance of station farthest from the epicenter (degree) 1.49197
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 5358341
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 13:26:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PLAC.HHZ. 2013-04-30T10:51:11.60 0.6 undecidable manual S 82 95.6376 137 0.22 44
IV.MPAZ.HHZ. 2013-04-30T10:51:07.37 0.6 undecidable manual S 127 71.9724 145 -0.8 40
IV.JOPP.HHZ. 2013-04-30T10:51:06.10 0.6 undecidable manual S 58 55.3002 152 -0.2 47
IV.MSCL.HHZ. 2013-04-30T10:51:05.50 0.6 undecidable manual S 107 40.4262 159 0.52 46
IV.MILZ.HHE. 2013-04-30T10:51:04.15 0.6 undecidable manual S 232 12.7761 173 0.61 48
IV.MSRU.HHE. 2013-04-30T10:51:03.38 0.3 undecidable manual S 122 16.4724 171 -0.27 75
IV.T0702.EHZ. 2013-04-30T10:51:02.92 0.3 undecidable manual P 22 165.612 120 -0.19 54
IV.CET2.HHZ. 2013-04-30T10:51:00.74 0.3 undecidable manual P 22 141.747 125 0.13 62
IV.SERS.HHZ. 2013-04-30T10:51:00.53 0.1 undecidable manual P 56 139.3605 125 0.16 81
IV.PLAC.HHZ. 2013-04-30T10:50:56.41 0.1 positive manual P 82 95.6376 137 0.15 88
IV.MPAZ.HHZ. 2013-04-30T10:50:54.66 0.3 undecidable manual P 127 71.9724 145 0.26 67
IV.JOPP.HHZ. 2013-04-30T10:50:53.29 0.1 undecidable manual P 58 55.3002 152 -0.04 98
IV.MSCL.HHZ. 2013-04-30T10:50:52.64 0.1 undecidable manual P 107 40.4262 159 0.08 100
IV.MILZ.HHE. 2013-04-30T10:50:52.31 0.3 undecidable manual P 232 12.7761 173 0.58 71
IV.MSRU.HHE. 2013-04-30T10:50:50.72 0.1 undecidable manual P 122 16.4724 171 -1.07 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MPAZ.HHE. ML:1.8 0.000036200000000000006 0.94 AML other m 2013-04-30T10:51:10.30
IV.MPAZ.HHN. ML:1.7 0.00003195 0.64 AML other m 2013-04-30T10:51:10.43
IV.SERS.HHE. ML:1.6 0.0000161 1.42 AML other m 2013-04-30T10:51:10.37
IV.SERS.HHN. ML:1.5 0.000012580000000000002 1.14 AML other m 2013-04-30T10:51:30.70
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