Earthquake with magnitude of Md 2.6 on date 08-08-1986 and time 16:48:48 (Italy) in region 2 km SE Sinagra (ME)

A magnitude Md 2.6 earthquake occured in region: 2 km SE Sinagra (ME), on

  • 08-08-1986 14:48:48 (UTC)
  • 08-08-1986 16:48:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.0700, 14.8710 at 101 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Sinagra ME 2 2705 2705
Ucria ME 3 1058 3763
Raccuja ME 4 1041 4804
Sant'Angelo di Brolo ME 5 3090 7894
Castell'Umberto ME 6 3128 11022
Tortorici ME 6 6435 17457
Ficarra ME 6 1469 18926
San Salvatore di Fitalia ME 8 1319 20245
Librizzi ME 8 1660 21905
San Piero Patti ME 9 2915 24820
Naso ME 9 3813 28633
Galati Mamertino ME 10 2627 31260
Floresta ME 10 485 31745
Montagnareale ME 10 1615 33360
Mirto ME 10 974 34334
Piraino ME 10 3962 38296
Brolo ME 11 5783 44079
Frazzanò ME 11 711 44790
Longi ME 11 1473 46263
Patti ME 11 13431 59694
Gioiosa Marea ME 12 7074 66768
Montalbano Elicona ME 14 2287 69055
Capri Leone ME 15 4515 73570
Capo d'Orlando ME 15 13254 86824
San Marco d'Alunzio ME 15 1996 88820
Alcara li Fusi ME 16 1980 90800
Basicò ME 17 612 91412
Torrenova ME 17 4386 95798
Militello Rosmarino ME 17 1324 97122
Oliveri ME 18 2181 99303
Santa Domenica Vittoria ME 19 980 100283
Falcone ME 19 2808 103091
Roccella Valdemone ME 19 666 103757

Municipalities with at least 50000 inhabitants

An earthquake occurred to
57 Km NW of Acireale (52622 inhabitants)
62 Km W of Messina (238439 inhabitants)
66 Km N of Catania (314555 inhabitants)
68 Km W of Reggio di Calabria (183035 inhabitants)
96 Km NE of Caltanissetta (63360 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
Md 2.6 1986-08-08
14:48:48
38.07 14.871 101 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 32499
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-08-08 14:48:48 ± 2.522
Latitude 38.0700 ± 0.1524
Longitude 14.8710 ± 0.0787
Depth (km) 101 ± 25 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 32499

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 18290.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 133
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1
Epicentral distance of station closest to the epicenter (degree) 0.00170
Epicentral distance of station farthest from the epicenter (degree) 0.01918
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

Md:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 32499
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:33:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.TS9.Z. 1986-08-08T14:49:22.50 10.0 undecidable manual P 35 1.9536 1.98 0.3
--.MG9.Z. 1986-08-08T14:49:21.50 10.0 undecidable manual P 14 2.1312 -1.3 0.6
--.GIB.Z. 1986-08-08T14:49:17.00 10.0 undecidable manual S 263 0.666 -1.36 0.5
--.RI2.Z. 1986-08-08T14:49:11.20 10.0 undecidable manual P 73 1.2987 -1.31 0.8
--.FE2.Z. 1986-08-08T14:49:07.80 10.0 undecidable manual P 91 0.9546 -0.67 1.5
--.GIB.Z. 1986-08-08T14:49:06.00 10.0 undecidable manual P 263 0.666 0.35 1.6
--.MSI.Z. 1986-08-08T14:49:05.30 10.0 undecidable manual P 75 0.5439 0.62 1.5
--.MS9.Z. 1986-08-08T14:49:03.80 10.0 undecidable manual P 224 0.1887 1.14 1.1
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