Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 31-10-2014 and time 17:26:02 (UTC) in region Tirreno Meridionale (MARE)

A magnitude ML 1.6 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 31-10-2014 17:26:02 (UTC)
  • 31-10-2014 18:26:02 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.6030, 15.3450 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.

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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
49 Km NW of Messina (238439 inhabitants)
61 Km NW of Reggio di Calabria (183035 inhabitants)
94 Km W of Lamezia Terme (70714 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 1.6 2014-10-31
17:26:02		 38.6032 15.3453 10 2015-09-21
09:40:11		 Bollettino Sismico Italiano INGV 17141881
Reviewed
Rev100 		ML 1.6 2014-10-31
17:26:02		 38.58 15.3582 10 2014-10-31
17:38:39		 Sala Sismica INGV-Roma 9161001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-10-31 17:26:02 ± 0.17
Latitude 38.6032 ± 0.0081
Longitude 15.3453 ± 0.0081
Depth (km) 10 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 17141881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 825
Semi-minor axis of confidence ellipse (meter) 596
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 334
Circular confidence region, given by single value of horizontal uncertainty (meter) 820.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 103
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.93529
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations 1
Type of magnitude ML
Reference to an origin 9161001
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-10-31 17:38:39

ML:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations 1
Type of magnitude ML
Reference to an origin 17141881
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-02-20 14:15:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAGA.HHZ. 2014-10-31T17:26:44.99 3.0 undecidable manual S 0.01 0
IV.TDS.HHZ. 2014-10-31T17:26:43.99 3.0 undecidable manual S -1.42 0
IV.CAR1.HHE. 2014-10-31T17:26:33.20 0.3 undecidable manual S 46 103.8183 50 0.21 64
IV.MPAZ.HHE. 2014-10-31T17:26:30.40 0.3 undecidable manual S 141 92.241 50 0.5 61
IV.MSFR.HHE. 2014-10-31T17:26:29.62 0.1 undecidable manual S 226 91.0422 50 0.05 90
IV.SOI.EHE. 2014-10-31T17:26:28.19 0.3 undecidable manual S 133 85.248 50 0.18 66
IV.AIO.HHE. 2014-10-31T17:26:24.85 0.3 undecidable manual S 188 70.7736 50 0.69 59
IV.MCSR.HHZ. 2014-10-31T17:26:21.19 0.1 undecidable manual S 190 60.5949 50 -0.25 91
IV.CAR1.HHE. 2014-10-31T17:26:20.17 0.1 undecidable manual P 46 103.8183 50 0.08 87
IV.MSCL.HHE. 2014-10-31T17:26:19.89 0.1 undecidable manual S 137 56.499 50 -0.45 88
IV.MSFR.HHE. 2014-10-31T17:26:18.48 0.1 undecidable manual P 226 91.0422 50 0.36 84
IV.MPAZ.HHE. 2014-10-31T17:26:18.43 0.1 undecidable manual P 141 92.241 50 0.12 88
IV.JOPP.HHZ. 2014-10-31T17:26:17.54 0.3 undecidable manual S 89 46.8198 50 -0.23 71
IV.SOI.EHE. 2014-10-31T17:26:17.30 0.1 undecidable manual P 133 85.248 50 0.08 90
IV.IVPL.HHE. 2014-10-31T17:26:15.48 0.1 undecidable manual S 232 40.5261 50 -0.6 87
IV.AIO.HHE. 2014-10-31T17:26:15.30 0.1 undecidable manual P 188 70.7736 50 0.3 89
IV.MSRU.HHZ. 2014-10-31T17:26:15.50 0.3 undecidable manual S 159 40.2264 50 -0.5 67
IV.MCSR.HHZ. 2014-10-31T17:26:13.11 0.6 undecidable manual P 190 60.5949 50 -0.32 45
IV.MSCL.HHE. 2014-10-31T17:26:12.80 0.1 undecidable manual P 137 56.499 50 0.01 97
IV.JOPP.HHZ. 2014-10-31T17:26:11.36 0.1 undecidable manual P 89 46.8198 50 0.05 97
IV.IVPL.HHE. 2014-10-31T17:26:10.88 0.1 undecidable manual P 232 40.5261 50 0.55 88
IV.IST3.HHZ. 2014-10-31T17:26:10.95 0.3 undecidable manual S 335 23.9538 112 -0.47 70
IV.MSRU.HHZ. 2014-10-31T17:26:09.84 0.1 undecidable manual P 159 40.2264 50 -0.45 91
IV.IST3.HHZ. 2014-10-31T17:26:07.77 0.1 undecidable manual P 335 23.9538 112 0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.IST3.HHE. ML:1.5 0.0001865 1.54 AML other m 2014-10-31T17:26:15.64
IV.IST3.HHN. ML:1.6 0.000265 0.86 AML other m 2014-10-31T17:26:17.79
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download