Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 24-08-2012 and time 22:31:49 (UTC) in region Tirreno Meridionale (MARE)

A magnitude ML 2.4 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 24-08-2012 22:31:49 (UTC)
  • 25-08-2012 00:31:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.1760, 15.5360 at 220 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 Cosenza (67546 inhabitants)
71 Km W of Lamezia Terme (70714 inhabitants)
96 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
Reviewed
Rev100 		ML 2.4 2012-08-24
22:31:49		 39.202 15.5772 220 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 2064911
Bulletin
Rev1000 		ML 2.4 2012-08-24
22:31:49		 39.1765 15.5363 220 2014-09-19
08:14:18		 Bollettino Sismico Italiano INGV 2569471
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-08-24 22:31:49 ± 0.31
Latitude 39.1765 ± 0.0216
Longitude 15.5363 ± 0.0383
Depth (km) 220 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 2569471

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3542
Semi-minor axis of confidence ellipse (meter) 1791
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) 3540.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 192
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.47754
Epicentral distance of station farthest from the epicenter (degree) 1.27704
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 11
Type of magnitude ML
Reference to an origin 2569471
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2014-09-18 12:41:56

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 2064911
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2012-08-24 22:50:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIPA.HHZ. 2012-08-24T22:32:46.00 0.3 undecidable manual S 72 114.996 151 0.1 65
IV.SERS.HHZ. 2012-08-24T22:32:44.45 0.3 undecidable manual S 99 100.4217 154 -0.01 68
IV.CELI.HHZ. 2012-08-24T22:32:44.08 0.1 undecidable manual S 73 87.1461 157 0.78 75
MN.TIP.HHZ. 2012-08-24T22:32:44.94 0.3 undecidable manual S 89 105.117 153 0.03 68
IV.JOPP.HHZ. 2012-08-24T22:32:41.77 0.3 undecidable manual S 154 70.0743 162 -0.22 69
IV.CAR1.HHZ. 2012-08-24T22:32:40.97 0.1 undecidable manual S 81 58.5969 164 -0.31 93
IV.CET2.HHZ. 2012-08-24T22:32:40.96 0.1 undecidable manual S 42 53.0025 166 0 100
IV.MPAZ.HHZ. 2012-08-24T22:32:23.81 0.1 undecidable manual P 163 141.747 146 0.04 83
IV.MCSR.HHZ. 2012-08-24T22:32:23.41 0.3 undecidable manual P 192 126.1737 149 0.68 54
IV.MTTG.HHZ. 2012-08-24T22:32:23.60 0.1 undecidable manual P 174 130.9689 148 0.57 75
IV.ATN.BHZ. 2012-08-24T22:32:22.33 0.1 undecidable manual P 183 112.998 152 0.42 82
IV.MPNC.HHZ. 2012-08-24T22:32:22.09 0.1 undecidable manual P 188 115.3956 151 0.05 88
IV.SOI.EHZ. 2012-08-24T22:32:22.88 0.1 undecidable manual P 160 130.3695 148 -0.11 84
IV.SALB.HHZ. 2012-08-24T22:32:21.41 0.1 undecidable manual P 41 104.118 153 0.01 90
MN.TIP.HHZ. 2012-08-24T22:32:21.22 0.1 undecidable manual P 89 105.117 153 -0.23 87
IV.PIPA.HHZ. 2012-08-24T22:32:21.72 0.1 undecidable manual P 72 114.996 151 -0.31 84
IV.MSCL.HHZ. 2012-08-24T22:32:21.35 0.1 undecidable manual P 168 107.0151 153 -0.21 86
IV.PLAC.HHZ. 2012-08-24T22:32:21.62 0.1 undecidable manual P 136 112.1988 152 -0.24 85
IV.CELI.HHZ. 2012-08-24T22:32:21.03 0.1 undecidable manual P 73 87.1461 157 0.51 84
IV.SERS.HHZ. 2012-08-24T22:32:20.81 0.1 undecidable manual P 99 100.4217 154 -0.38 85
IV.GRI.EHZ. 2012-08-24T22:32:20.64 0.3 undecidable manual P 117 85.7475 158 0.19 68
IV.CET2.HHZ. 2012-08-24T22:32:19.30 0.1 undecidable manual P 42 53.0025 166 0.12 97
IV.JOPP.HHZ. 2012-08-24T22:32:19.79 0.1 undecidable manual P 154 70.0743 162 0.02 97
IV.IVPL.HHZ. 2012-08-24T22:32:19.93 0.3 undecidable manual P 209 100.9212 154 -1.29 43
IV.CAR1.HHZ. 2012-08-24T22:32:19.02 0.1 undecidable manual P 81 58.5969 164 -0.33 93
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATN.BHE. ML:2.3 0.00003875 1.4 AML other m 2012-08-24T22:32:23.15
IV.ATN.BHN. ML:2.3 0.0000375 1.48 AML other m 2012-08-24T22:32:31.27
IV.CELI.HHN. ML:2.4 0.000052900000000000005 0.96 AML other m 2012-08-24T22:32:45.88
IV.CELI.HHE. ML:2.4 0.00005 1.58 AML other m 2012-08-24T22:32:45.45
IV.JOPP.HHE. ML:2.6 0.0000882 0.16 AML other m 2012-08-24T22:32:20.21
IV.JOPP.HHN. ML:2.4 0.000054250000000000004 0.62 AML other m 2012-08-24T22:32:20.33
IV.MCSR.HHE. ML:2.4 0.00005165 1.14 AML other m 2012-08-24T22:32:55.74
IV.MCSR.HHN. ML:2.6 0.00006555 0.38 AML other m 2012-08-24T22:32:56.84
IV.MSCL.HHE. ML:2.5 0.0000663 0.64 AML other m 2012-08-24T22:32:23.42
IV.MSCL.HHN. ML:2.6 0.00008350000000000001 1.4 AML other m 2012-08-24T22:32:23.43
IV.ORI.HHE. ML:2.8 0.000128 0.44 AML other m 2012-08-24T22:32:40.33
IV.ORI.HHN. ML:2.7 0.00008595 0.62 AML other m 2012-08-24T22:32:46.98
IV.PIPA.HHN. ML:2.2 0.00003345 0.32 AML other m 2012-08-24T22:32:47.31
IV.PIPA.HHE. ML:2.3 0.00003990000000000001 0.5 AML other m 2012-08-24T22:32:48.41
IV.PLAC.HHN. ML:2.2 0.00003135 1.48 AML other m 2012-08-24T22:32:30.79
IV.PLAC.HHE. ML:2.3 0.00004235 1.06 AML other m 2012-08-24T22:32:24.30
BA.PZUN.HHN. ML:3.0 0.000153 0.68 AML other m 2012-08-24T22:32:41.06
BA.PZUN.HHE. ML:2.7 0.00007425 0.18 AML other m 2012-08-24T22:32:40.72
IV.SERS.HHE. ML:2.0 0.000019900000000000003 0.26 AML other m 2012-08-24T22:32:46.71
IV.SERS.HHN. ML:2.0 0.0000203 0.28 AML other m 2012-08-24T22:32:46.78
MN.TIP.HHE. ML:2.1 0.00002365 0.62 AML other m 2012-08-24T22:32:45.94
MN.TIP.HHN. ML:1.9 0.00001575 1.58 AML other m 2012-08-24T22:32:45.11
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in miniseed + resp format Download