Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 01-04-2013 and time 04:12:38 (UTC) in region Tirreno Meridionale (MARE)

A magnitude ML 2.2 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 01-04-2013 04:12:38 (UTC)
  • 01-04-2013 06:12:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.8710, 15.6020 at 85 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
63 Km W of Lamezia Terme (70714 inhabitants)
74 Km SW of Cosenza (67546 inhabitants)
75 Km N of Messina (238439 inhabitants)
85 Km N of Reggio di Calabria (183035 inhabitants)
86 Km W of Catanzaro (90612 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 2.2 2013-04-01
04:12:38		 38.871 15.6022 85 2015-01-20
11:24:29		 Bollettino Sismico Italiano INGV 4601291
Reviewed
Rev100 		ML 2.1 2013-04-01
04:12:38		 38.8838 15.5515 78 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 3133771
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-04-01 04:12:38 ± 0.18
Latitude 38.8710 ± 0.0090
Longitude 15.6022 ± 0.0196
Depth (km) 85 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 4601291

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1393
Semi-minor axis of confidence ellipse (meter) 1117
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 113
Circular confidence region, given by single value of horizontal uncertainty (meter) 1390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 181
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.34444
Epicentral distance of station farthest from the epicenter (degree) 1.96772
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 2
Type of magnitude ML
Reference to an origin 3133771
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2013-04-01 04:22:11

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations 2
Type of magnitude ML
Reference to an origin 4601291
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 13:25:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MCSR.HHZ. 2013-04-01T04:13:10.15 1.0 undecidable manual S 200 95.1381 126 0.38 22
IV.T0702.EHZ. 2013-04-01T04:13:10.86 0.6 undecidable manual S 24 102.9192 123 -0.31 42
IV.LTRZ.EHZ. 2013-04-01T04:13:09.93 0.1 undecidable manual P 28 218.4147 105 -0.72 48
IV.MPNC.HHZ. 2013-04-01T04:13:08.02 0.6 undecidable manual S 195 83.25 130 0.27 46
IV.CET2.HHZ. 2013-04-01T04:13:07.57 0.6 undecidable manual S 22 78.9654 131 0.51 44
IV.HLNI.HHZ. 2013-04-01T04:13:06.47 0.6 undecidable manual P 201 180.486 108 0.34 34
IV.GRI.EHZ. 2013-04-01T04:13:06.13 0.3 undecidable manual S 94 70.8735 135 0.35 67
IV.MSRU.HHZ. 2013-04-01T04:13:05.17 0.3 undecidable manual S 187 67.8765 136 -0.15 70
IV.JOPP.HHZ. 2013-04-01T04:13:01.11 0.3 undecidable manual S 140 38.2284 153 -0.47 70
IV.T0702.EHZ. 2013-04-01T04:12:57.15 0.1 positive manual P 24 102.9192 123 -0.22 87
IV.CELI.HHZ. 2013-04-01T04:12:57.07 0.3 undecidable manual P 53 97.8243 125 0.23 66
IV.MTTG.HHZ. 2013-04-01T04:12:56.97 0.1 undecidable manual P 175 96.6255 125 0.25 89
IV.MCSR.HHZ. 2013-04-01T04:12:56.72 0.1 undecidable manual P 200 95.1381 126 0.15 92
IV.MPNC.HHZ. 2013-04-01T04:12:55.56 0.3 undecidable manual P 195 83.25 130 0.16 70
IV.CET2.HHZ. 2013-04-01T04:12:55.16 0.1 undecidable manual P 22 78.9654 131 0.16 94
IV.PLAC.HHZ. 2013-04-01T04:12:55.72 0.1 undecidable manual P 123 86.247 129 0.04 93
IV.GRI.EHZ. 2013-04-01T04:12:54.14 0.3 undecidable manual P 94 70.8735 135 -0.12 73
IV.MSRU.HHZ. 2013-04-01T04:12:53.73 0.1 undecidable manual P 187 67.8765 136 -0.26 92
IV.JOPP.HHZ. 2013-04-01T04:12:51.66 0.1 positive manual P 140 38.2284 153 -0.18 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MCSR.HHE. ML:2.3 0.000147 0.84 AML other m 2013-04-01T04:13:17.57
IV.MCSR.HHN. ML:2.4 0.000151 1.2 AML other m 2013-04-01T04:13:18.60
IV.PLAC.HHN. ML:2.0 0.0000673 0.32 AML other m 2013-04-01T04:13:11.76
IV.PLAC.HHE. ML:2.0 0.00007545 1.58 AML other m 2013-04-01T04:13:12.15
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