Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 1.8 on date 07-02-2016 and time 02:47:14 (Italy) in region 8 km SE Giarratana (RG)

A magnitude Md 1.8 earthquake occured in region: 8 km SE Giarratana (RG), on

  • 07-02-2016 01:47:14 (UTC)
  • 07-02-2016 02:47:14 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 36.9830, 14.8250 at 8 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
Giarratana RG 8 3048 3048
Ragusa RG 10 73313 76361
Palazzolo Acreide SR 11 8808 85169
Chiaramonte Gulfi RG 12 8238 93407
Buscemi SR 13 1051 94458
Monterosso Almo RG 13 3032 97490
Modica RG 15 54633 152123
Buccheri SR 16 1999 154122
Cassaro SR 18 821 154943
Ferla SR 19 2523 157466
Comiso RG 20 30156 187622

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km NE of Ragusa (73313 inhabitants)
15 Km NE of Modica (54633 inhabitants)
26 Km E of Vittoria (63339 inhabitants)
43 Km W of Siracusa (122291 inhabitants)
52 Km E of Gela (75827 inhabitants)
63 Km SW of Catania (314555 inhabitants)
76 Km SW of Acireale (52622 inhabitants)
88 Km SE of Caltanissetta (63360 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 		Md 1.8 2016-02-07
01:47:14		 36.9827 14.8248 8 2016-05-17
13:17:25		 Bollettino Sismico Italiano INGV 24217261
Reviewed
Rev100 		ML 2.0 2016-02-07
01:47:15		 36.9648 14.8557 10 2016-02-07
02:21:28		 Sala Sismica INGV-Roma 23400671
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-02-07 01:47:14 ± 0.12
Latitude 36.9827 ± 0.0063
Longitude 14.8248 ± 0.0079
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 24217261

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 706
Semi-minor axis of confidence ellipse (meter) 651
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 306
Circular confidence region, given by single value of horizontal uncertainty (meter) 710.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 87
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) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.04047
Epicentral distance of station farthest from the epicenter (degree) 0.43977
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:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 5
Type of magnitude ML
Reference to an origin 23400671
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-02-07 02:21:28

Md:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 6
Type of magnitude Md
Reference to an origin 24217261
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2016-04-11 09:16:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAGA.HHZ. 2016-02-07T01:47:30.11 0.3 undecidable manual S 41 44.4222 50 0.32 67
IV.AGST.EHZ. 2016-02-07T01:47:30.69 0.6 undecidable manual S 49 46.8198 50 0.28 45
IV.HLNI.HHZ. 2016-02-07T01:47:29.31 0.3 undecidable manual S 6 40.8258 50 0.5 65
IV.SSY.HHZ. 2016-02-07T01:47:25.67 0.3 undecidable manual S 49 29.3484 106 0.22 70
IV.HAVL.HHN. 2016-02-07T01:47:24.55 0.6 undecidable manual S 95 26.4513 108 0.06 49
IV.RAFF.HHZ. 2016-02-07T01:47:24.52 0.3 undecidable manual P 303 48.8178 50 0.37 66
IV.HAGA.HHZ. 2016-02-07T01:47:23.00 0.3 undecidable manual P 41 44.4222 50 -0.48 65
IV.AGST.EHZ. 2016-02-07T01:47:23.53 0.3 undecidable manual P 49 46.8198 50 -0.31 67
IV.HLNI.HHZ. 2016-02-07T01:47:22.22 0.1 undecidable manual P 6 40.8258 50 -0.69 80
IV.HPAC.HHE. 2016-02-07T01:47:22.28 0.3 undecidable manual P 148 35.8419 50 0.14 70
IV.HAVL.HHN. 2016-02-07T01:47:20.31 0.1 undecidable manual P 95 26.4513 108 -0.11 96
IV.MEU.SHZ. 2016-02-07T01:47:20.68 0.3 undecidable manual S 2 14.2746 120 0.09 74
IV.SSY.HHZ. 2016-02-07T01:47:20.91 0.1 undecidable manual P 49 29.3484 106 -0.06 97
IV.HVZN.HHE. 2016-02-07T01:47:19.63 0.1 undecidable manual P 336 23.754 109 -0.27 93
IV.MEU.SHZ. 2016-02-07T01:47:18.15 0.1 undecidable manual P 2 14.2746 120 -0.02 100
IV.HMDC.HHZ. 2016-02-07T01:47:18.28 0.6 undecidable manual S 235 4.4955 151 0.12 50
IV.HMDC.HHZ. 2016-02-07T01:47:16.96 0.1 undecidable manual P 235 4.4955 151 0.2 98
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