Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 18-04-2018 and time 10:29:23 (UTC) in region Tirreno Meridionale (MARE)

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

  • 18-04-2018 10:29:23 (UTC)
  • 18-04-2018 12:29:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.4690, 15.4910 at 133 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
31 Km N of Messina (238439 inhabitants)
42 Km NW of Reggio di Calabria (183035 inhabitants)
92 Km SW of Lamezia Terme (70714 inhabitants)
99 Km N of Acireale (52622 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 2018-04-18
10:29:23		 38.4687 15.4907 133 2019-04-24
14:49:49		 Bollettino Sismico Italiano INGV 66029691
Reviewed
Rev100 		ML 2.2 2018-04-18
10:29:23		 38.4855 15.5187 133 2018-04-18
10:38:19		 Sala Sismica INGV-Roma 55779281
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-04-18 10:29:23 ± 0.29
Latitude 38.4687 ± 0.0252
Longitude 15.4907 ± 0.0299
Depth (km) 133 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 66029691

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3634
Semi-minor axis of confidence ellipse (meter) 557
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 139
Circular confidence region, given by single value of horizontal uncertainty (meter) 3630.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 185
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.21588
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 55779281
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-04-18 10:38:19

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 66029691
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-02-27 18:48:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CR.STON.BHZ. 2018-04-18T10:31:25.96 3.0 undecidable manual Sn -1.98 0
IV.MTRA.HNZ. 2018-04-18T10:31:18.26 3.0 undecidable manual Sn -6.72 0
IV.ROM9.HNZ. 2018-04-18T10:31:16.81 3.0 undecidable manual Sn 3.89 0
IV.TREG.HNZ. 2018-04-18T10:31:14.99 3.0 undecidable manual Pn -1.31 0
GU.GRAM.HHZ. 2018-04-18T10:31:12.52 3.0 undecidable manual Pn 2.72 0
TV.SF04.EHZ. 2018-04-18T10:30:56.39 3.0 undecidable manual Pg 14.14 0
IV.MF5.EHZ. 2018-04-18T10:30:53.50 3.0 undecidable manual Pg 17.860001 0
IV.PP3.EHZ. 2018-04-18T10:30:52.95 3.0 negative manual Pg 12.77 0
IV.COR1.EHZ. 2018-04-18T10:30:48.45 3.0 negative manual Pn 3.02 0
IV.MCIV.HHZ. 2018-04-18T10:30:46.87 3.0 positive manual Pn 5.34 0
IV.CSP1.EHZ. 2018-04-18T10:30:44.51 3.0 negative manual Pn 6.64 0
IV.FDMO.HHZ. 2018-04-18T10:30:43.24 3.0 undecidable manual Pn 5.62 0
IV.T1219.EHZ. 2018-04-18T10:30:42.81 3.0 undecidable manual Pn 4.62 0
IV.T1299.EHZ. 2018-04-18T10:30:41.16 3.0 negative manual Pg 9.31 0
AC.PUK.HHZ. 2018-04-18T10:30:36.97 3.0 undecidable manual Pn -0.44 0
IV.CMDO.HHZ. 2018-04-18T10:30:27.26 3.0 undecidable manual Sg 8.31 0
IV.PTRJ.HNZ. 2018-04-18T10:30:20.95 3.0 undecidable manual Pg 9.33 0
MN.TIP.HHN. 2018-04-18T10:30:08.50 0.6 undecidable manual S 54 134.9649 131 0.25 40
IV.SERS.HNN. 2018-04-18T10:30:06.58 0.6 undecidable manual S 58 121.2897 134 0.5 39
IV.PLAC.HHZ. 2018-04-18T10:30:00.50 0.6 undecidable manual S 91 82.3509 146 -0.19 46
IV.AIO.HHZ. 2018-04-18T10:29:59.73 0.6 undecidable manual S 202 59.5959 154 1.51 27
IV.SOI.EHZ. 2018-04-18T10:29:58.77 0.6 undecidable manual S 132 65.7897 152 -0.07 48
IV.JOPP.HHZ. 2018-04-18T10:29:56.25 0.3 undecidable manual S 66 37.5291 163 -0.23 74
IV.MPNC.HHZ. 2018-04-18T10:29:56.37 0.6 undecidable manual S 199 37.7289 163 -0.12 50
MN.CEL.HHZ. 2018-04-18T10:29:56.59 3.0 undecidable manual S -0.03 0
IV.MILZ.HHZ. 2018-04-18T10:29:56.00 0.6 undecidable manual S 226 31.4463 166 -0.12 50
MN.TIP.HHN. 2018-04-18T10:29:49.37 0.1 undecidable manual P 54 134.9649 131 -0.08 83
IV.SERS.HNN. 2018-04-18T10:29:48.31 0.1 undecidable manual P 58 121.2897 134 0.11 85
IV.GRI.EHN. 2018-04-18T10:29:45.75 0.3 undecidable manual P 64 89.5437 143 0.14 68
IV.PLAC.HHZ. 2018-04-18T10:29:45.04 0.1 positive manual P 91 82.3509 146 -0.05 93
IV.AIO.HHZ. 2018-04-18T10:29:44.10 0.3 undecidable manual P 202 59.5959 154 0.44 67
IV.MUCR.HHZ. 2018-04-18T10:29:44.45 0.3 undecidable manual P 229 71.5728 150 0.08 71
IV.SOI.EHZ. 2018-04-18T10:29:43.84 0.1 undecidable manual P 132 65.7897 152 -0.18 94
IV.MILZ.HHZ. 2018-04-18T10:29:42.14 0.1 undecidable manual P 226 31.4463 166 -0.31 97
IV.GMB.BHZ. 2018-04-18T10:29:42.87 3.0 undecidable manual P -0.02 0
IV.JOPP.HHZ. 2018-04-18T10:29:42.54 0.1 undecidable manual P 66 37.5291 163 -0.12 100
IV.MPNC.HHZ. 2018-04-18T10:29:42.49 0.3 undecidable manual P 199 37.7289 163 -0.17 74
MN.CEL.HHZ. 2018-04-18T10:29:42.64 3.0 positive manual P -0.12 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.CEL.HHN. ML:2.3 0.00010819999999999999 1.78 AML other m 2018-04-18T10:29:56.90
IV.MILZ.HHN. ML:2.1 0.0000743 1.12 AML other m 2018-04-18T10:29:57.15
IV.JOPP.HHN. ML:2.4 0.00015900000000000002 0.16 AML other m 2018-04-18T10:29:57.21
IV.MILZ.HHE. ML:2.2 0.00010235 0.88 AML other m 2018-04-18T10:29:57.52
IV.JOPP.HHE. ML:2.3 0.000121 0.62 AML other m 2018-04-18T10:29:57.58
MN.CEL.HHE. ML:2.1 0.0000805 0.3 AML other m 2018-04-18T10:29:58.32
IV.SOI.EHN. ML:2.1 0.00006004999999999999 1.78 AML other m 2018-04-18T10:29:59.91
IV.SOI.EHE. ML:2.1 0.0000675 1.58 AML other m 2018-04-18T10:30:00.93
IV.AIO.HHE. ML:1.7 0.0000268 0.86 AML other m 2018-04-18T10:30:00.33
IV.PLAC.HHN. ML:2.2 0.0000781 0.42 AML other m 2018-04-18T10:30:00.78
IV.PLAC.HHE. ML:2.3 0.00009520000000000001 0.66 AML other m 2018-04-18T10:30:02.00
IV.AIO.HHN. ML:1.8 0.000033549999999999996 0.7 AML other m 2018-04-18T10:30:04.93
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