Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.8 on date 20-10-2015 and time 11:48:19 (UTC) in region Costa Siciliana nord orientale (Messina)

A magnitude ML 2.8 earthquake occured in region: Costa Siciliana nord orientale (Messina), on

  • 20-10-2015 11:48:19 (UTC)
  • 20-10-2015 13:48:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.2920, 15.3890 at 64 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Villafranca Tirrena ME 7 8584 8584
Spadafora ME 8 5021 13605
Venetico ME 8 3911 17516
Valdina ME 11 1355 18871
Torregrotta ME 12 7431 26302
Saponara ME 12 3988 30290
Roccavaldina ME 12 1133 31423
Rometta ME 13 6650 38073
Condrò ME 14 493 38566
Pace del Mela ME 14 6239 44805
Milazzo ME 15 31646 76451
Monforte San Giorgio ME 15 2777 79228
San Pier Niceto ME 15 2837 82065
Gualtieri Sicaminò ME 16 1807 83872
San Filippo del Mela ME 17 7115 90987
Messina ME 18 238439 329426
Merì ME 18 2338 331764
Santa Lucia del Mela ME 19 4650 336414

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NW of Messina (238439 inhabitants)
30 Km NW of Reggio di Calabria (183035 inhabitants)
78 Km N of Acireale (52622 inhabitants)
92 Km N of Catania (314555 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 2.8 2015-10-20
11:48:19		 38.2918 15.3892 64 2016-02-19
13:22:16		 Bollettino Sismico Italiano INGV 22717371
Reviewed
Rev100 		ML 2.7 2015-10-20
11:48:18		 38.2855 15.3935 63 2015-10-20
12:01:27		 Sala Sismica INGV-Roma 21883361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2015-10-20 11:48:19 ± 0.17
Latitude 38.2918 ± 0.0090
Longitude 15.3892 ± 0.0115
Depth (km) 64 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 22717371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1185
Semi-minor axis of confidence ellipse (meter) 353
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 311
Circular confidence region, given by single value of horizontal uncertainty (meter) 1190.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 52
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 34
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 2.59005
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:2.8

Field Value
Value 2.8
Uncertainty 0.2
Num. used stations 17
Type of magnitude ML
Reference to an origin 22717371
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2016-02-09 13:57:43

ML:2.7

Field Value
Value 2.7
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 21883361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2015-10-20 12:01:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.PDG.HHZ. 2015-10-20T11:49:50.05 3.0 positive manual Pg 16.82 0
IV.MCRV.HHZ. 2015-10-20T11:49:27.99 3.0 undecidable manual Sn 287.49 -1.56 0
IV.LAV9.HHZ. 2015-10-20T11:49:25.89 3.0 positive manual Pg 8.12 0
IV.LATB.EHZ. 2015-10-20T11:49:15.72 3.0 negative manual Pn 1.49 0
IV.LIK.EHZ.01 2015-10-20T11:49:07.16 3.0 negative manual Pn -4.37 0
IV.CET2.HHZ. 2015-10-20T11:48:58.18 0.6 undecidable manual S 19 145.6431 104 -0.15 39
IV.MCRV.HHZ. 2015-10-20T11:48:55.67 3.0 undecidable manual Pn 287.49 -2.33 0
IV.CAR1.HHZ. 2015-10-20T11:48:54.94 0.6 undecidable manual S 33 128.1717 107 0.24 39
IV.MPAZ.HHZ. 2015-10-20T11:48:42.41 0.6 undecidable manual S 125 65.6898 126 -0.08 46
IV.SOI.EHZ. 2015-10-20T11:48:42.03 0.6 undecidable manual S 112 62.8926 127 0.04 47
IV.JOPP.HHZ. 2015-10-20T11:48:41.12 0.6 undecidable manual S 51 55.5 131 0.35 44
IV.CET2.HHZ. 2015-10-20T11:48:41.94 0.1 undecidable manual P 19 145.6431 104 0.23 76
IV.CAR1.HHZ. 2015-10-20T11:48:39.60 0.1 undecidable manual P 33 128.1717 107 -0.01 82
IV.MTTG.HHZ. 2015-10-20T11:48:39.06 0.6 undecidable manual S 140 41.9247 141 0.32 46
IV.NOV.HHZ. 2015-10-20T11:48:39.40 0.6 undecidable manual S 217 36.6411 145 1.35 30
IV.AIO.HHZ. 2015-10-20T11:48:38.86 0.6 undecidable manual S 201 38.0286 144 0.63 42
IV.MCSR.HHZ. 2015-10-20T11:48:38.49 0.6 undecidable manual S 209 28.749 151 1.34 30
IV.MSCL.HHZ. 2015-10-20T11:48:38.04 0.6 undecidable manual S 101 35.5422 146 0.13 48
IV.PLAC.HHZ. 2015-10-20T11:48:36.04 0.1 undecidable manual P 79 92.9403 115 0.54 80
IV.MILZ.HHZ. 2015-10-20T11:48:35.46 0.3 undecidable manual S 261 13.9749 166 -0.51 70
IV.MSRU.HHZ. 2015-10-20T11:48:35.35 0.1 undecidable manual S 107 10.7781 169 -0.47 95
IV.MPNC.HHZ. 2015-10-20T11:48:35.92 0.3 undecidable manual S 191 16.4724 163 -0.19 74
IV.EPZF.HHZ. 2015-10-20T11:48:33.57 0.3 undecidable manual P 222 69.6747 124 0.61 61
IV.MSFR.HHZ. 2015-10-20T11:48:33.23 0.3 undecidable manual P 248 75.1692 121 -0.32 64
IV.EPOZ.HHZ. 2015-10-20T11:48:32.50 0.3 undecidable manual P 194 70.9734 123 -0.6 59
IV.IST3.HHZ. 2015-10-20T11:48:32.11 0.3 undecidable manual P 346 57.8976 130 0.31 66
IV.MPAZ.HHZ. 2015-10-20T11:48:32.28 0.1 undecidable manual P 125 65.6898 126 -0.28 88
IV.SOI.EHZ. 2015-10-20T11:48:32.17 0.1 undecidable manual P 112 62.8926 127 -0.1 91
IV.MUCR.HHZ. 2015-10-20T11:48:31.15 0.3 undecidable manual P 239 52.7028 133 -0.17 69
IV.JOPP.HHZ. 2015-10-20T11:48:31.69 0.1 undecidable manual P 51 55.5 131 0.12 93
IV.IVPL.HHZ. 2015-10-20T11:48:30.00 0.1 positive manual P 285 36.8298 145 -0.01 98
IV.NOV.HHZ. 2015-10-20T11:48:30.29 0.1 undecidable manual P 217 36.6411 145 0.29 93
IV.ILLI.HHZ. 2015-10-20T11:48:30.80 0.3 undecidable manual P 294 41.9247 141 0.4 67
IV.AIO.HHZ. 2015-10-20T11:48:30.17 0.1 undecidable manual P 201 38.0286 144 0.07 97
IV.MTTG.HHZ. 2015-10-20T11:48:30.42 0.1 undecidable manual P 140 41.9247 141 0.03 98
IV.MSCL.HHZ. 2015-10-20T11:48:29.88 0.1 undecidable manual P 101 35.5422 146 -0.04 98
IV.MCSR.HHZ. 2015-10-20T11:48:29.48 0.1 undecidable manual P 209 28.749 151 0 100
IV.MILZ.HHZ. 2015-10-20T11:48:28.03 0.1 positive manual P 261 13.9749 166 -0.77 84
IV.MSRU.HHZ. 2015-10-20T11:48:28.40 0.1 undecidable manual P 107 10.7781 169 -0.31 97
IV.MPNC.HHZ. 2015-10-20T11:48:28.40 0.1 undecidable manual P 191 16.4724 163 -0.48 92
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.AIO.HHE. ML:2.7 0.0008135 0.28 AML other m 2015-10-20T11:48:40.26
IV.AIO.HHN. ML:2.6 0.0006799999999999999 1.36 AML other m 2015-10-20T11:48:41.47
IV.CET2.HHN. ML:3.1 0.000592 0.46 AML other m 2015-10-20T11:48:59.67
IV.CET2.HHE. ML:3.0 0.0004755 0.46 AML other m 2015-10-20T11:48:59.84
IV.EPOZ.HHN. ML:2.6 0.00041999999999999996 0.82 AML other m 2015-10-20T11:48:50.78
IV.EPOZ.HHE. ML:2.5 0.000326 1.04 AML other m 2015-10-20T11:48:53.91
IV.EPZF.HHN. ML:3.1 0.0014049999999999998 0.32 AML other m 2015-10-20T11:48:46.30
IV.EPZF.HHE. ML:2.9 0.0008425 1.48 AML other m 2015-10-20T11:48:46.19
IV.IST3.HHN. ML:2.5 0.00041549999999999996 1.14 AML other m 2015-10-20T11:48:43.55
IV.IST3.HHE. ML:2.4 0.00034250000000000003 0.94 AML other m 2015-10-20T11:48:45.04
IV.IVPL.HHN. ML:3.2 0.00233 0.72 AML other m 2015-10-20T11:48:40.84
IV.IVPL.HHE. ML:3.2 0.002835 0.8 AML other m 2015-10-20T11:48:38.55
IV.MCSR.HHN. ML:3.3 0.003545 1.02 AML other m 2015-10-20T11:48:40.18
IV.MCSR.HHE. ML:3.2 0.0025949999999999997 0.3 AML other m 2015-10-20T11:48:40.19
IV.MILZ.HHN. ML:2.8 0.001285 0.36 AML other m 2015-10-20T11:48:35.89
IV.MILZ.HHE. ML:2.9 0.00159 0.5 AML other m 2015-10-20T11:48:35.87
IV.MPAZ.HHE. ML:2.6 0.00040500000000000003 0.42 AML other m 2015-10-20T11:48:46.18
IV.MPAZ.HHN. ML:2.7 0.0005935 0.86 AML other m 2015-10-20T11:48:43.67
IV.MPNC.HHE. ML:2.7 0.0009220000000000001 0.86 AML other m 2015-10-20T11:48:39.28
IV.MPNC.HHN. ML:2.9 0.00149 1 AML other m 2015-10-20T11:48:38.49
IV.MSCL.HHE. ML:2.9 0.00134 0.84 AML other m 2015-10-20T11:48:38.37
IV.MSCL.HHN. ML:2.7 0.000843 1.28 AML other m 2015-10-20T11:48:38.93
IV.MSRU.HHN. ML:3.0 0.0020350000000000004 0.9 AML other m 2015-10-20T11:48:36.38
IV.MSRU.HHE. ML:3.3 0.0040750000000000005 0.36 AML other m 2015-10-20T11:48:36.17
IV.MTTG.HHN. ML:2.7 0.0007790000000000001 0.64 AML other m 2015-10-20T11:48:42.22
IV.MTTG.HHE. ML:2.6 0.000647 0.4 AML other m 2015-10-20T11:48:42.43
IV.MUCR.HHE. ML:2.8 0.000812 0.46 AML other m 2015-10-20T11:48:43.48
IV.MUCR.HHN. ML:2.8 0.0007535 0.6 AML other m 2015-10-20T11:48:44.03
IV.NOV.HHN. ML:2.8 0.001017 1.26 AML other m 2015-10-20T11:48:40.07
IV.NOV.HHE. ML:2.9 0.001295 0.4 AML other m 2015-10-20T11:48:40.16
IV.PLAC.HHN. ML:2.4 0.00019800000000000002 0.78 AML other m 2015-10-20T11:48:51.18
IV.PLAC.HHE. ML:2.4 0.000231 0.32 AML other m 2015-10-20T11:48:50.83
IV.SOI.EHE. ML:2.6 0.00042600000000000005 0.46 AML other m 2015-10-20T11:48:43.55
IV.SOI.EHN. ML:2.6 0.000448 0.76 AML other m 2015-10-20T11:48:44.87
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, /tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
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