Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.5 on date 04-05-2012 and time 22:04:14 (UTC) in region Isole Eolie (Messina)

A magnitude ML 2.5 earthquake occured in region: Isole Eolie (Messina), on

  • 04-05-2012 22:04:14 (UTC)
  • 05-05-2012 00:04:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.6750, 15.3050 at 254 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
58 Km NW of Messina (238439 inhabitants)
69 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
Reviewed
Rev100 		ML 2.5 2012-05-04
22:04:14		 38.7312 15.0728 246 2014-10-21
12:19:34		 Sala Sismica INGV-Roma 1259891
Bulletin
Rev1000 		ML 2.5 2012-05-04
22:04:14		 38.6747 15.3047 254 2014-09-19
08:14:18		 Bollettino Sismico Italiano INGV 2653051
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-05-04 22:04:14 ± 0.67
Latitude 38.6747 ± 0.1196
Longitude 15.3047 ± 0.1210
Depth (km) 254 ± 6 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 2653051

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 15834
Semi-minor axis of confidence ellipse (meter) 5977
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 144
Circular confidence region, given by single value of horizontal uncertainty (meter) 15830.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 223
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.51
Epicentral distance of station closest to the epicenter (degree) 0.44067
Epicentral distance of station farthest from the epicenter (degree) 1.13584
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 2653051
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2014-09-18 12:42:00

ML:2.5

Field Value
Value 2.5
Uncertainty 0.2
Num. used stations 0
Type of magnitude ML
Reference to an origin 1259891
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2012-05-04 22:17:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SERS.HHZ. 2012-05-04T22:05:19.68 0.6 undecidable manual S 71 126.0738 153 1 37
IV.PLAC.HHZ. 2012-05-04T22:05:16.51 0.6 undecidable manual S 104 101.4207 157 0.07 52
IV.MMME.HHZ. 2012-05-04T22:05:16.44 0.6 undecidable manual S 183 82.1511 161 1.47 32
IV.MCSR.HHZ. 2012-05-04T22:05:15.52 0.3 undecidable manual S 185 67.9764 164 1.45 49
IV.SOI.EHZ. 2012-05-04T22:05:15.08 0.6 undecidable manual S 135 93.24 159 -0.7 44
IV.MSRU.HHZ. 2012-05-04T22:05:12.16 0.3 undecidable manual S 159 48.9177 169 -0.96 64
IV.JOPP.HHZ. 2012-05-04T22:05:12.25 0.6 undecidable manual S 98 50.9157 168 -0.95 43
IV.SERS.HHZ. 2012-05-04T22:04:52.16 0.3 undecidable manual P 71 126.0738 153 0.58 66
IV.PLAC.HHZ. 2012-05-04T22:04:50.54 0.1 undecidable manual P 104 101.4207 157 0.26 100
IV.GMB.BHZ. 2012-05-04T22:04:49.40 0.3 undecidable manual P 141 72.372 163 0.34 78
IV.MUCR.HHZ. 2012-05-04T22:04:49.51 0.6 undecidable manual P 208 79.4649 162 0.18 53
IV.SOI.EHZ. 2012-05-04T22:04:49.56 0.3 undecidable manual P 135 93.24 159 -0.34 75
IV.MMME.HHZ. 2012-05-04T22:04:49.72 0.3 undecidable manual P 183 82.1511 161 0.29 77
IV.JOPP.HHZ. 2012-05-04T22:04:48.21 0.3 undecidable manual P 98 50.9157 168 -0.2 83
IV.MSCL.HHZ. 2012-05-04T22:04:48.25 0.3 undecidable manual P 139 64.6908 165 -0.55 74
IV.MCSR.HHZ. 2012-05-04T22:04:48.63 0.3 undecidable manual P 185 67.9764 164 -0.28 80
IV.MSRU.HHZ. 2012-05-04T22:04:47.82 0.3 undecidable manual P 159 48.9177 169 -0.54 77
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.JOPP.HHE. ML:2.1 0.000022 1.08 AML other m 2012-05-04T22:05:13.90
IV.JOPP.HHN. ML:2.1 0.0000216 1.58 AML other m 2012-05-04T22:05:17.91
IV.MCSR.HHE. ML:2.6 0.0000702 0.34 AML other m 2012-05-04T22:05:16.56
IV.MCSR.HHN. ML:2.6 0.000071 0.36 AML other m 2012-05-04T22:05:19.37
IV.MSCL.HHN. ML:2.6 0.00007400000000000001 0.36 AML other m 2012-05-04T22:05:16.28
IV.MSCL.HHE. ML:2.7 0.00007925 0.82 AML other m 2012-05-04T22:05:17.08
IV.MSRU.HHN. ML:2.5 0.000052249999999999996 1.2 AML other m 2012-05-04T22:05:13.96
IV.MSRU.HHE. ML:2.6 0.00006714999999999999 1.08 AML other m 2012-05-04T22:05:13.99
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