Earthquake with magnitude of ML 3.6 on date 14-12-2017 and time 02:59:20 (Italy) in region Costa Ragusana (Ragusa)

A magnitude ML 3.6 earthquake occured in region: Costa Ragusana (Ragusa), on

  • 14-12-2017 01:59:20 (UTC)
  • 14-12-2017 02:59:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 36.5130, 14.6430 at 16 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km S of Modica (54633 inhabitants)
47 Km S of Ragusa (73313 inhabitants)
49 Km S of Vittoria (63339 inhabitants)
71 Km SE of Gela (75827 inhabitants)
84 Km SW of Siracusa (122291 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

These three maps show the results of the analysis using the software ShakeMap designed to provide the level of ground shaking experienced in a region using the data recorded by seismometers and strong motion instruments and seismological information regarding the attenuation of the wavefield with distance and the site characteristics. The Shakemaps are determined for research purposes to provide fast estimates of the level of ground shaking produced by the earthquake. The maps are calculated automatically and updated as more data become available. See http://shakemap.ingv.it for additional information. The black star indicates the epicenter. The triangles show the accelerometric and velocimetric stations used in the calculation, colored according to the recorded shaking.

Intensity Shakemap

Intensity Shakemap

This map shows the distribution of instrumental intensities. The intensity is derived through an empirical law that correlates the recorded values of actual ground shaking, e.g., acceleration and velocity, with the macroseismic intensity for Italian earthquakes, as reported in the Italian Macroseismic Database (DBMI15, https://doi.org/10.13127/cpti/cpti15.3).
Peak ground acceleration Shakemap

Peak ground acceleration Shakemap

This map shows the distribution of peak ground acceleration expressed as percent of the acceleration of gravity (i.e., g = 9.81 m/s²).
Peak velocity Shakemap

Peak velocity Shakemap

This map shows the distribution of peak ground velocities expressed in cm/s.
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 3.6 2017-12-14
01:59:20
36.5133 14.6427 16 2017-12-17
08:03:29
Bollettino Sismico Italiano INGV 52590331
Reviewed
Rev100
ML 3.7 2017-12-14
01:59:18
36.3482 14.72 10 2017-12-14
02:10:01
Sala Sismica INGV-Roma 52579531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-12-14 01:59:20 ± 0.2
Latitude 36.5133 ± 0.0108
Longitude 14.6427 ± 0.0157
Depth (km) 16 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 52590331

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1492
Semi-minor axis of confidence ellipse (meter) 593
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 111
Circular confidence region, given by single value of horizontal uncertainty (meter) 1490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 130
Number of associated phases, regardless of their use for origin computation 49
Number of defining phases 49
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.44
Epicentral distance of station closest to the epicenter (degree) 0.37142
Epicentral distance of station farthest from the epicenter (degree) 3.42732
Number of stations at which the event was observed 42
Number of stations from which data was used for origin computation 42
Magnitudes information

ML:3.6

Field Value
Value 3.6
Uncertainty 0.3
Num. used stations 64
Type of magnitude ML
Reference to an origin 52590331
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-12-16 09:50:55

ML:3.7

Field Value
Value 3.7
Uncertainty 0.3
Num. used stations 54
Type of magnitude ML
Reference to an origin 52579531
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-12-14 02:10:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIPA.HHZ. 2017-12-14T02:00:14.30 0.6 undecidable manual P 29 380.4303 54 -0.05 13
IV.CELI.HHZ. 2017-12-14T02:00:11.50 0.6 undecidable manual P 26 359.6733 54 -0.26 13
IV.CAR1.HHZ. 2017-12-14T02:00:08.02 0.6 undecidable manual P 24 333.5106 54 -0.49 12
IV.PLAC.HHZ. 2017-12-14T01:59:59.94 0.3 undecidable manual P 36 266.6331 54 -0.25 29
IV.JOPP.HNN. 2017-12-14T01:59:58.83 0.3 undecidable manual P 25 256.6542 54 -0.11 33
IV.MARS.EHE. 2017-12-14T01:59:55.30 0.3 undecidable manual P 307 229.4925 54 -0.27 39
MN.CEL.HHZ. 2017-12-14T01:59:54.38 0.6 undecidable manual P 29 223.0101 54 -0.37 27
IV.IVPL.HHZ. 2017-12-14T01:59:54.18 0.6 undecidable manual P 8 208.7355 54 1.2 21
IV.MSRU.HHZ. 2017-12-14T01:59:53.34 0.3 undecidable manual P 21 208.6356 54 0.38 44
IV.LPDG.HHE. 2017-12-14T01:59:53.06 0.6 undecidable manual P 239 211.6326 54 -0.28 30
IV.SOLUN.HHZ. 2017-12-14T01:59:52.06 0.3 undecidable manual P 331 200.6436 54 0.09 49
IV.CRJA.HHN. 2017-12-14T01:59:52.37 0.6 undecidable manual P 315 203.4408 54 0.05 32
IV.SOI.EHZ. 2017-12-14T01:59:52.62 0.3 undecidable manual P 35 213.231 54 -0.91 35
IV.CORL.HHZ. 2017-12-14T01:59:50.72 0.3 undecidable manual P 323 193.5618 54 -0.37 48
IV.HLNI.HHZ. 2017-12-14T01:59:49.10 0.3 undecidable manual S 12 94.8384 93 0.47 66
IV.MTTG.HHE. 2017-12-14T01:59:49.96 0.3 undecidable manual P 29 189.7656 54 -0.66 45
IV.HAGA.HHZ. 2017-12-14T01:59:49.52 1.0 undecidable manual S 28 96.9252 93 0.34 22
IV.NOV.HHZ. 2017-12-14T01:59:49.15 0.3 undecidable manual P 14 173.5929 54 0.55 51
IV.MMGO.HHN. 2017-12-14T01:59:49.80 0.3 undecidable manual P 311 194.8605 54 -1.45 30
IV.GIB.HHE. 2017-12-14T01:59:49.08 0.3 undecidable manual P 342 172.5939 54 0.6 50
IV.AGST.EHZ. 2017-12-14T01:59:49.96 0.6 undecidable manual S 32 97.4247 93 0.65 41
IV.MUCR.HHE. 2017-12-14T01:59:48.58 0.3 undecidable manual P 7 170.8956 54 0.31 55
IV.AIO.HHZ. 2017-12-14T01:59:48.18 0.3 undecidable manual P 18 169.8966 54 0.03 58
MN.CLTB.HHN. 2017-12-14T01:59:48.56 0.6 undecidable manual P 314 172.8936 54 0.04 38
IV.MSFR.HHZ. 2017-12-14T01:59:48.01 0.3 undecidable manual P 358 168.7089 54 0.01 59
IV.PLLN.EHZ. 2017-12-14T01:59:48.63 0.3 undecidable manual P 345 169.8966 54 0.48 53
IV.ALJA.HHZ. 2017-12-14T01:59:47.73 0.3 undecidable manual P 330 158.0196 92 1.13 42
IV.CSLB.HHZ. 2017-12-14T01:59:47.70 0.1 negative manual P 342 166.2114 54 0.01 79
IV.LINA.HHE. 2017-12-14T01:59:47.43 0.3 undecidable manual P 246 174.492 54 -1.28 37
IV.SSY.HHZ. 2017-12-14T01:59:46.07 0.6 undecidable manual S 28 81.0522 94 1.11 34
IV.PETRA.HHZ. 2017-12-14T01:59:46.52 0.1 negative manual P 342 153.735 92 0.58 73
IV.EMSG.HHZ. 2017-12-14T01:59:45.92 0.3 undecidable manual P 11 147.5412 92 0.93 48
IV.EPZF.HHZ. 2017-12-14T01:59:45.71 0.3 undecidable manual P 7 146.6421 92 0.86 50
MN.WDD.HNZ. 2017-12-14T01:59:45.32 0.6 undecidable manual S 188 75.7686 94 1.77 21
IV.RESU.HHZ. 2017-12-14T01:59:44.30 0.1 negative manual P 338 135.9639 92 1.09 61
IV.EPOZ.HHZ. 2017-12-14T01:59:43.31 0.3 undecidable manual P 20 137.2626 92 -0.1 65
IV.GALF.HHZ. 2017-12-14T01:59:43.25 0.1 negative manual P 357 132.9669 92 0.5 80
IV.ESLN.HHZ. 2017-12-14T01:59:42.96 0.3 undecidable manual P 13 134.1657 92 0.03 66
IV.ESML.HHZ. 2017-12-14T01:59:41.40 0.3 undecidable manual P 10 124.2867 93 -0.02 68
IV.HMDC.HHZ. 2017-12-14T01:59:36.66 0.6 undecidable manual S 14 51.0156 97 -0.31 49
IV.AGST.EHZ. 2017-12-14T01:59:36.55 0.1 positive manual P 32 97.4247 93 -0.72 80
IV.HLNI.HHZ. 2017-12-14T01:59:36.01 0.1 negative manual P 12 94.8384 93 -0.87 75
IV.HAGA.HHZ. 2017-12-14T01:59:36.48 0.1 undecidable manual P 28 96.9252 93 -0.72 80
IV.HPAC.HHZ. 2017-12-14T01:59:35.45 0.6 undecidable manual S 58 41.2254 100 1.05 37
IV.RAFF.HHZ. 2017-12-14T01:59:34.38 0.1 negative manual P 343 82.4508 94 -0.6 86
MN.WDD.HNZ. 2017-12-14T01:59:34.02 0.1 negative manual P 188 75.7686 94 0.08 96
IV.SSY.HHZ. 2017-12-14T01:59:34.22 0.1 positive manual P 28 81.0522 94 -0.54 88
IV.HMDC.HHZ. 2017-12-14T01:59:29.14 0.1 negative manual P 14 51.0156 97 -1 77
IV.HPAC.HHZ. 2017-12-14T01:59:28.31 0.1 positive manual P 58 41.2254 100 -0.35 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HMDC.HHN. ML:3.8 0.01742034 0.24 AML other m 2017-12-14T01:59:37.61
IV.HMDC.HHE. ML:3.8 0.017514935000000002 0.4816 AML other m 2017-12-14T01:59:40.18
IV.SSY.HHE. ML:4.3 0.02490166 0.5792 AML other m 2017-12-14T01:59:46.95
IV.SSY.HHN. ML:4.3 0.026122419999999997 0.2208 AML other m 2017-12-14T01:59:49.70
IV.RAFF.HHN. ML:3.2 0.0020499384999999996 0.52 AML other m 2017-12-14T01:59:56.67
IV.RAFF.HHE. ML:3.3 0.0024054090000000003 0.76 AML other m 2017-12-14T01:59:58.98
IV.HLNI.HHE. ML:3.8 0.007118479 0.32 AML other m 2017-12-14T01:59:50.42
IV.HLNI.HHN. ML:3.8 0.0062913715 0.3408 AML other m 2017-12-14T01:59:52.61
IV.HAGA.HHE. ML:3.7 0.005991339500000001 0.36 AML other m 2017-12-14T01:59:58.41
IV.HAGA.HHN. ML:3.7 0.0049676485000000005 0.48 AML other m 2017-12-14T01:59:53.67
IV.AGST.EHN. ML:3.9 0.0075650115000000006 0.6192 AML other m 2017-12-14T01:59:54.90
IV.AGST.EHE. ML:3.8 0.006694532499999999 0.5792 AML other m 2017-12-14T01:59:52.01
IV.ESML.HHE. ML:3.6 0.0025939215 0.5184 AML other m 2017-12-14T02:00:14.51
IV.ESML.HHN. ML:3.6 0.0028398184999999998 0.7408 AML other m 2017-12-14T02:00:19.20
IV.ESLN.HHE. ML:3.9 0.0052713425 0.6784 AML other m 2017-12-14T02:00:13.01
IV.ESLN.HHN. ML:3.9 0.0045400095 0.68 AML other m 2017-12-14T02:00:08.87
IV.GALF.HHN. ML:3.5 0.0021034955 0.4208 AML other m 2017-12-14T02:00:09.48
IV.GALF.HHE. ML:3.8 0.003667331 0.6208 AML other m 2017-12-14T02:00:06.80
IV.EPOZ.HHN. ML:3.8 0.004111137999999999 0.4592 AML other m 2017-12-14T02:00:13.46
IV.EPOZ.HHE. ML:3.8 0.004238266 0.7392 AML other m 2017-12-14T02:00:11.17
IV.RESU.HHN. ML:3.4 0.0017193725 1.12 AML other m 2017-12-14T02:00:10.32
IV.RESU.HHE. ML:3.4 0.0014708515 0.4992 AML other m 2017-12-14T02:00:12.53
IV.EPZF.HHN. ML:3.8 0.0035779335000000003 1.0208 AML other m 2017-12-14T02:00:18.50
IV.EPZF.HHE. ML:3.9 0.004236663 0.4208 AML other m 2017-12-14T02:00:11.80
IV.EMSG.HHN. ML:3.8 0.0036102340000000004 0.36 AML other m 2017-12-14T02:00:18.31
IV.EMSG.HHE. ML:3.8 0.003611425 0.68 AML other m 2017-12-14T02:00:14.58
IV.PETRA.HHN. ML:3.5 0.0016030000000000003 0.68 AML other m 2017-12-14T02:00:24.37
IV.PETRA.HHE. ML:3.6 0.0019894409999999998 0.5008 AML other m 2017-12-14T02:00:12.01
IV.CSLB.HHN. ML:3.2 0.0007197500999999999 0.76 AML other m 2017-12-14T02:00:19.74
IV.CSLB.HHE. ML:3.2 0.0007394819 0.6192 AML other m 2017-12-14T02:00:22.80
IV.ALJA.HHN. ML:3.2 0.0007385330999999999 0.7616 AML other m 2017-12-14T02:00:31.65
IV.ALJA.HHE. ML:3.2 0.0007463084 0.5808 AML other m 2017-12-14T02:00:18.19
IV.MSFR.HHN. ML:3.2 0.0006941973999999999 0.8192 AML other m 2017-12-14T02:00:19.97
IV.MSFR.HHE. ML:3.3 0.00089041255 0.8992 AML other m 2017-12-14T02:00:25.98
IV.AIO.HHN. ML:3.4 0.00117343755 0.4 AML other m 2017-12-14T02:00:23.81
IV.AIO.HHE. ML:3.7 0.002057147 0.4192 AML other m 2017-12-14T02:00:17.73
IV.PLLN.EHE. ML:3.7 0.0018921725 0.68 AML other m 2017-12-14T02:00:16.27
IV.PLLN.EHN. ML:3.9 0.0030739995 0.5184 AML other m 2017-12-14T02:00:19.34
IV.NOV.HHE. ML:4.2 0.0057113680000000005 0.7008 AML other m 2017-12-14T02:00:17.02
IV.NOV.HHN. ML:3.7 0.002118529 0.8208 AML other m 2017-12-14T02:00:22.43
IV.SOLUN.HHE. ML:3.6 0.0012327595000000001 0.92 AML other m 2017-12-14T02:00:30.32
IV.SOLUN.HHN. ML:3.4 0.0008222374999999999 0.8208 AML other m 2017-12-14T02:00:29.85
IV.MSRU.HHN. ML:3.6 0.0010618625 0.8992 AML other m 2017-12-14T02:00:28.18
IV.MSRU.HHE. ML:3.7 0.0013279558499999999 0.56 AML other m 2017-12-14T02:00:27.71
MN.CEL.HHN. ML:3.3 0.00048782060000000007 0.5584 AML other m 2017-12-14T02:00:28.09
MN.CEL.HNN. ML:3.2 0.0004159824 0.5584 AML other m 2017-12-14T02:00:28.09
MN.CEL.HHE. ML:3.3 0.00050480095 0.44 AML other m 2017-12-14T02:00:33.02
MN.CEL.HNE. ML:3.3 0.0004372728 0.92 AML other m 2017-12-14T02:00:33.02
IV.PLAC.HNE. ML:3.4 0.0004336288 0.8992 AML other m 2017-12-14T02:00:36.27
IV.PLAC.HHE. ML:3.3 0.0003466697 0.5008 AML other m 2017-12-14T02:00:35.90
IV.PLAC.HNN. ML:3.3 0.00033453105000000007 0.48 AML other m 2017-12-14T02:00:35.90
IV.PLAC.HHN. ML:3.4 0.00043806480000000005 0.9392 AML other m 2017-12-14T02:00:36.27
IV.CAR1.HHE. ML:3.4 0.000247077 0.6608 AML other m 2017-12-14T02:01:02.82
IV.CAR1.HNE. ML:3.4 0.0002606935 0.56 AML other m 2017-12-14T02:00:59.53
IV.CAR1.HNN. ML:3.5 0.00031626705 0.4608 AML other m 2017-12-14T02:01:00.13
IV.CAR1.HHN. ML:3.5 0.00028078905 1.16 AML other m 2017-12-14T02:01:09.67
IV.CELI.HNN. ML:3.3 0.00015390805 1.28 AML other m 2017-12-14T02:01:17.95
IV.CELI.HHN. ML:3.5 0.00022538805 1.4 AML other m 2017-12-14T02:01:17.84
IV.CELI.HHE. ML:3.4 0.00019429785 2.08 AML other m 2017-12-14T02:00:57.46
IV.CELI.HNE. ML:3.2 0.000110283715 1.48 AML other m 2017-12-14T02:01:22.50
IV.PIPA.HNN. ML:3.5 0.0002067567 1.1104 AML other m 2017-12-14T02:01:13.54
IV.PIPA.HHN. ML:3.2 0.00009580839 1.16 AML other m 2017-12-14T02:01:30.92
IV.PIPA.HHE. ML:3.1 0.000090506185 0.8 AML other m 2017-12-14T02:01:20.88
IV.PIPA.HNE. ML:3.4 0.00017280110000000002 0.8192 AML other m 2017-12-14T02:01:06.72
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