Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 23-12-2013 and time 06:40:31 (UTC) in region Stretto di Messina (Reggio di Calabria, Messina)

A magnitude ML 2.0 earthquake occured in region: Stretto di Messina (Reggio di Calabria, Messina), on

  • 23-12-2013 06:40:31 (UTC)
  • 23-12-2013 07:40:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.1600, 15.5650 at 7 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Messina ME 4 238439 238439
Reggio di Calabria RC 9 183035 421474
Villa San Giovanni RC 9 13784 435258
Campo Calabro RC 10 4536 439794
Saponara ME 12 3988 443782
Fiumara RC 13 1018 444800
Rometta ME 13 6650 451450
Calanna RC 14 934 452384
Villafranca Tirrena ME 14 8584 460968
Laganadi RC 16 413 461381
Monforte San Giorgio ME 16 2777 464158
Scaletta Zanclea ME 16 2140 466298
San Roberto RC 16 1750 468048
Itala ME 16 1640 469688
Roccavaldina ME 17 1133 470821
Scilla RC 17 4964 475785
Sant'Alessio in Aspromonte RC 17 343 476128
Valdina ME 17 1355 477483
Spadafora ME 18 5021 482504
San Pier Niceto ME 19 2837 485341
Venetico ME 19 3911 489252
Torregrotta ME 19 7431 496683
Alì ME 20 768 497451
Cardeto RC 20 1641 499092
Santo Stefano in Aspromonte RC 20 1263 500355

Municipalities with at least 50000 inhabitants

An earthquake occurred to
4 Km S of Messina (238439 inhabitants)
9 Km NW of Reggio di Calabria (183035 inhabitants)
70 Km NE of Acireale (52622 inhabitants)
84 Km NE of Catania (314555 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 2.0 2013-12-23
06:40:31		 38.16 15.5648 7 2015-01-20
11:30:42		 Bollettino Sismico Italiano INGV 5151421
Reviewed
Rev100 		ML 2.0 2013-12-23
06:40:31		 38.1692 15.5648 7 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 5035091
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-12-23 06:40:31 ± 0.09
Latitude 38.1600 ± 0.0072
Longitude 15.5648 ± 0.0046
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 5151421

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 737
Semi-minor axis of confidence ellipse (meter) 334
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 346
Circular confidence region, given by single value of horizontal uncertainty (meter) 740.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 113
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
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) 0.11331
Epicentral distance of station farthest from the epicenter (degree) 0.74374
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 5151421
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 13:06:33

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 5035091
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2013-12-23 06:46:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.IVPL.HHZ. 2013-12-23T06:40:50.50 0.3 undecidable manual S 295 56.2992 50 0.66 61
IV.JOPP.HHE. 2013-12-23T06:40:49.33 0.6 undecidable manual S 29 56.8986 50 -0.66 41
IV.PLAC.HHE. 2013-12-23T06:40:46.89 0.3 undecidable manual P 67 82.5507 50 0.78 55
IV.SOI.EHZ. 2013-12-23T06:40:45.90 0.3 undecidable manual S 103 43.8228 50 -0.6 64
IV.NOV.HHZ. 2013-12-23T06:40:45.10 0.3 undecidable manual S 249 40.1265 50 -0.43 68
IV.AIO.HHE. 2013-12-23T06:40:44.01 0.6 undecidable manual S 234 35.742 101 -0.09 49
IV.ILLI.HHE. 2013-12-23T06:40:43.99 0.6 undecidable manual P 301 62.2932 50 0.99 35
IV.MUCR.HHE. 2013-12-23T06:40:43.43 0.3 undecidable manual P 258 61.6938 50 0.53 64
MN.CEL.HNZ. 2013-12-23T06:40:42.30 0.3 undecidable manual S 69 30.747 103 -0.1 74
IV.IVPL.HHZ. 2013-12-23T06:40:42.09 0.1 undecidable manual P 295 56.2992 50 0.02 96
IV.MILZ.HHZ. 2013-12-23T06:40:42.30 0.3 undecidable manual S 293 31.5462 103 -0.38 70
IV.MCSR.HHE. 2013-12-23T06:40:42.03 0.6 undecidable manual S 250 31.0467 103 -0.48 46
IV.JOPP.HHE. 2013-12-23T06:40:41.80 0.1 undecidable manual P 29 56.8986 50 -0.35 89
IV.SOI.EHZ. 2013-12-23T06:40:40.04 0.1 undecidable manual P 103 43.8228 50 -0.1 97
IV.MPAZ.HHZ. 2013-12-23T06:40:40.41 0.1 undecidable manual P 121 44.9217 50 0.1 96
IV.AIO.HHE. 2013-12-23T06:40:39.04 0.1 undecidable manual P 234 35.742 101 0.28 94
IV.MSCL.HHZ. 2013-12-23T06:40:39.40 0.3 undecidable manual S 68 21.1677 108 0.2 74
IV.NOV.HHZ. 2013-12-23T06:40:39.49 0.3 undecidable manual P 249 40.1265 50 -0.09 73
IV.MPNC.HHZ. 2013-12-23T06:40:38.40 0.3 undecidable manual S 265 18.5703 111 0.06 76
IV.MCSR.HHE. 2013-12-23T06:40:37.20 0.3 undecidable manual P 250 31.0467 103 -0.64 64
IV.MILZ.HHZ. 2013-12-23T06:40:37.81 0.1 positive manual P 293 31.5462 103 -0.13 98
MN.CEL.HNZ. 2013-12-23T06:40:37.76 0.3 undecidable manual P 69 30.747 103 -0.02 75
IV.MSCL.HHZ. 2013-12-23T06:40:36.21 0.3 undecidable manual P 68 21.1677 108 0.28 73
IV.MSRU.HHZ. 2013-12-23T06:40:36.10 0.3 undecidable manual S 337 12.5763 119 -0.34 73
IV.MPNC.HHZ. 2013-12-23T06:40:35.79 0.1 undecidable manual P 265 18.5703 111 0.36 96
IV.MSRU.HHZ. 2013-12-23T06:40:34.53 0.1 positive manual P 337 12.5763 119 0.2 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.IVPL.HHE. ML:2.6 0.0008585 0.34 AML other m 2013-12-23T06:40:52.76
IV.IVPL.HHN. ML:2.5 0.0007849999999999999 0.3 AML other m 2013-12-23T06:40:54.66
IV.MILZ.HHN. ML:1.9 0.000375 0.32 AML other m 2013-12-23T06:40:42.80
IV.MILZ.HHE. ML:1.8 0.0003075 0.3 AML other m 2013-12-23T06:40:43.82
IV.MPAZ.HHE. ML:1.6 0.00011925 0.26 AML other m 2013-12-23T06:40:52.12
IV.MPAZ.HHN. ML:1.7 0.000153 1.24 AML other m 2013-12-23T06:40:51.83
IV.MPNC.HHN. ML:2.3 0.0015899999999999998 0.42 AML other m 2013-12-23T06:40:38.62
IV.MPNC.HHE. ML:2.2 0.0013900000000000002 1.1 AML other m 2013-12-23T06:40:39.62
IV.MSCL.HHE. ML:2.1 0.000964 0.38 AML other m 2013-12-23T06:40:39.60
IV.MSCL.HHN. ML:1.8 0.0004975 0.42 AML other m 2013-12-23T06:40:39.75
IV.MSRU.HHN. ML:2.4 0.003375 0.38 AML other m 2013-12-23T06:40:36.54
IV.MSRU.HHE. ML:2.4 0.003375 1.12 AML other m 2013-12-23T06:40:36.52
IV.NOV.HHN. ML:1.7 0.0001735 0.44 AML other m 2013-12-23T06:40:45.96
IV.NOV.HHE. ML:1.8 0.000202 0.9 AML other m 2013-12-23T06:40:45.88
IV.SOI.EHE. ML:1.5 0.0001047 0.4 AML other m 2013-12-23T06:40:47.71
IV.SOI.EHN. ML:1.5 0.00009685000000000001 0.76 AML other m 2013-12-23T06:40:47.61
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
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