Earthquake with magnitude of mb 5.2 on date 30-10-2018 and time 03:59:58 (Italy) in region Mar Ionio Meridionale (MARE)

A magnitude mb 5.2 earthquake occured in region: Mar Ionio Meridionale (MARE), on

  • 30-10-2018 02:59:58 (UTC)
  • 30-10-2018 03:59:58 (UTC +01:00) Italian time
  • 30-10-2018 04:59:58 (UTC +02:00) local time in the region of the earthquake (Europe/Athens)

and geographic coordinates (lat, lon) 37.55, 20.48 at 10 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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

No Italian municipalities within 100 km from the epicenter with at least 50000 inhabitants.

Recent and historical Seismicity

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the last three days (72 hours)

Earthquakes of the last three days (72 hours)

This map reports the earthquake epicenters located in the past 72 hours (3 days) from the time this page has been generated. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the last 90 days

Earthquakes of the last 90 days

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1985

Earthquakes since 1985

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2014

Earthquakes since 1000 AD until 2014

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows 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 adjourned progressively as more data become available. See http://shakemap.rm.ingv.it/ for additional information.

The red star indicates the epicenter. The red triangles show the stations of the INGV Italian National Seismic Network and the blue triangles those of the Nationa Accelerometric Network of the Dipartimento della Protezione Civile.

Intensity Shakemap

Intensity Shakemap

This map shows the distribution of the istrumentally derived intensities. To this purpose, it is used a conversion relation between ground acceleration and velocity, and the Mercalli Modificata (MMI - Modified Mercalli Intensity) scale. In general, the Mercalli intensity scale relies on the effects that the ground shaking produces as reported by an observer.
Peak ground acceleration Shakemap

Peak ground acceleration Shakemap

This map shows This map shows the distribution of peak ground acceleration expressed as per cent 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
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 mb 5.2
Mwp 5.6
Mwpd 6.2
2018-10-30
02:59:58
37.55 20.48 10 2018-10-30
06:26:49
Sala Sismica INGV-Roma 62565381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-10-30 02:59:58
Latitude 37.55
Longitude 20.48
Depth (km) 10 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 62565381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3651
Semi-minor axis of confidence ellipse (meter) 2864
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 170
Circular confidence region, given by single value of horizontal uncertainty (meter) 3745.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 54.6203
Number of associated phases, regardless of their use for origin computation 90
Number of defining phases 90
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.24403
Epicentral distance of station closest to the epicenter (degree) 2.22479
Epicentral distance of station farthest from the epicenter (degree) 56.8172
Number of stations at which the event was observed 89
Number of stations from which data was used for origin computation 89
Magnitudes information

Mwpd:6.2

Field Value
Value 6.2
Uncertainty 0
Num. used stations 1
Type of magnitude Mwpd
Reference to an origin 62565381
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-10-30 06:26:49

Mwp:5.6

Field Value
Value 5.6
Uncertainty 0.2
Num. used stations 16
Type of magnitude Mwp
Reference to an origin 62565381
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-10-30 06:26:49

mb:5.2

Field Value
Value 5.2
Uncertainty 0.1
Num. used stations 60
Type of magnitude mb
Reference to an origin 62565381
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-10-30 06:26:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IU.TSUM.BHZ.00 2018-10-30T03:09:41.62 10.0 positive automatic P 183 56.8172 -1.36787 0.447411
IU.LSZ.BHZ.00 2018-10-30T03:09:18.17 10.0 negative automatic P 171 53.3235 0.441084 0.512329
DK.NEEM.BHZ.10 2018-10-30T03:08:49.95 10.0 positive automatic P 344 49.4977 0.657101 0.575236
G.IVI.BHZ.00 2018-10-30T03:08:36.75 10.0 negative automatic P 323 47.6863 1.83605 0.592191
DK.DY2G.BHZ.10 2018-10-30T03:08:30.40 10.0 positive automatic P 330 46.8757 1.43481 0.606022
DK.NOR.BHZ. 2018-10-30T03:08:21.55 10.0 negative automatic P 353 45.9527 0.196671 0.636777
GE.SUMG.BHZ. 2018-10-30T03:08:17.50 10.0 negative automatic P 339 45.2484 1.16951 0.580293
IU.MAKZ.BHZ.00 2018-10-30T03:08:15.95 10.0 negative automatic P 58 45.3084 -0.41144 0.64067
DK.ICESG.BHZ.00 2018-10-30T03:08:13.45 10.0 positive automatic P 334 44.74 1.21805 0.628612
II.KURK.BHZ.00 2018-10-30T03:07:53.17 10.0 positive automatic P 53 42.5483 -0.93983 0.698818
II.AAK.BHZ.00 2018-10-30T03:07:40.97 10.0 positive automatic P 65 40.9289 -0.127912 0.625151
DK.SCO.BHZ. 2018-10-30T03:07:32.30 10.0 positive automatic P 339 39.6483 2.08234 0.736411
GT.DBIC.BHZ.00 2018-10-30T03:07:19.65 10.0 positive automatic P 223 38.5078 -1.03251 0.804944
KZ.KKAR.BHZ. 2018-10-30T03:07:15.18 10.0 positive automatic P 65 37.9743 -1.0837 0.3631
II.SIMI.BHZ.00 2018-10-30T03:07:14.17 10.0 positive automatic P 73 37.7484 -0.092251 0.800724
II.BRVK.BHZ.00 2018-10-30T03:07:10.77 10.0 positive automatic P 49 37.378 -0.407049 0.779989
II.UOSS.BHZ.00 2018-10-30T03:06:30.97 10.0 positive automatic P 102 32.7946 -0.694894 0.892541
II.ARTI.BHZ.00 2018-10-30T03:06:17.57 10.0 positive automatic P 41 31.3664 -1.55335 0.901429
KZ.ABKAR.BHZ. 2018-10-30T03:06:10.80 10.0 positive automatic P 55 30.5439 -1.08101 0.951936
GB.LRW.BHZ. 2018-10-30T03:05:35.54 10.0 negative automatic P 336 26.4314 0.370789 0.934579
II.RAYN.BHZ.00 2018-10-30T03:05:28.40 10.0 positive automatic P 116 25.5874 0.779623 0.941176
GE.DSB.BHZ. 2018-10-30T03:05:16.30 10.0 negative automatic P 319 24.2756 0.685281 0.952381
OE.DAVA.BHZ. 2018-10-30T03:05:14.12 10.0 positive automatic S 325 12.4636 -0.601415 0
II.ESK.BHZ.00 2018-10-30T03:05:11.57 10.0 negative automatic P 326 23.8881 -0.505426 0.888889
WM.AVE.BHZ. 2018-10-30T03:05:05.05 10.0 negative automatic P 268 23.032 1.50883 0.930233
IU.KONO.BHZ.00 2018-10-30T03:05:04.12 10.0 negative automatic P 346 23.1677 -0.850469 0.97561
LX.MESJ.BHZ. 2018-10-30T03:05:00.12 10.0 positive automatic P 280 22.6171 0.958405 0.930233
SS.COI.BHZ. 2018-10-30T03:04:58.62 10.0 positive automatic P 286 22.5436 0.261867 0.898876
PM.PVAQ.BHZ. 2018-10-30T03:04:55.55 10.0 positive automatic P 278 22.2889 -0.112154 0.909091
GB.MCH1.BHZ. 2018-10-30T03:04:51.28 10.0 negative automatic P 319 21.8757 0.0252365 0.990099
PM.PESTR.BHZ. 2018-10-30T03:04:51.50 10.0 positive automatic P 282 22.0047 -1.16782 0.869565
GE.MTE.BHZ. 2018-10-30T03:04:50.55 10.0 negative automatic P 286 21.8748 -0.798311 0.816327
GE.VSU.BHZ. 2018-10-30T03:04:44.46 10.0 positive automatic P 9 21.3022 -0.600361 0.952381
II.OBN.BHZ.00 2018-10-30T03:04:36.67 10.0 positive automatic P 27 20.6699 -1.57367 0.909091
DK.MUD.BHZ. 2018-10-30T03:04:35.37 10.0 negative automatic P 342 20.3514 0.609712 0.930233
RD.ROSF.BHZ. 2018-10-30T03:04:34.14 10.0 positive automatic P 310 20.3292 -0.424011 0.961538
GB.JSA.BHZ. 2018-10-30T03:04:31.33 10.0 positive automatic P 313 20.0324 0.0238595 0.952381
G.TAM.BHZ.00 2018-10-30T03:04:27.90 10.0 negative automatic P 225 19.5635 1.48309 0.888889
IU.PAB.BHZ.00 2018-10-30T03:04:25.47 10.0 positive automatic P 284 19.4551 0.314442 0.930233
IU.GNI.BHZ.00 2018-10-30T03:04:20.27 10.0 positive automatic P 75 19.0134 -0.155621 0.869565
II.KIV.BHZ.00 2018-10-30T03:04:07.97 10.0 positive automatic P 62 17.9322 0.110036 0.851064
KO.KARS.HHZ. 2018-10-30T03:04:06.58 10.0 positive automatic P 73 17.7694 0.606583 0.716846
RD.MFF.BHZ. 2018-10-30T03:04:04.88 10.0 positive automatic P 307 17.7016 0.00268639 0.847458
G.CLF.BHZ.00 2018-10-30T03:03:57.50 10.0 negative automatic P 314 16.9088 2.53459 0.952381
KO.GURO.HHZ. 2018-10-30T03:03:56.90 10.0 positive automatic P 80 16.9641 1.02284 0.934579
PL.SUW.BHZ. 2018-10-30T03:03:49.45 10.0 negative automatic P 6 16.5642 -1.1653 0.851064
GE.FLT1.BHZ. 2018-10-30T03:03:45.40 10.0 positive automatic P 339 16.1292 0.358467 0.930233
GE.WLF.BHZ. 2018-10-30T03:03:42.95 10.0 positive automatic P 324 15.89 0.958446 0.909091
RD.LOR.BHZ. 2018-10-30T03:03:38.82 10.0 negative automatic P 314 15.5939 0.640463 0.892857
RD.MTLF.BHZ. 2018-10-30T03:03:28.74 10.0 positive automatic P 298 15.0118 -1.7594 0.925926
IU.KIEV.BHZ.00 2018-10-30T03:03:22.42 10.0 negative automatic P 23 14.5468 -1.70677 0.888889
G.ECH.BHZ.00 2018-10-30T03:03:21.00 10.0 positive automatic P 322 14.4132 -1.37821 0.888889
G.SSB.BHZ.00 2018-10-30T03:03:19.15 10.0 positive automatic P 308 14.19 -0.20332 0.909091
II.BFO.BHZ.00 2018-10-30T03:03:15.87 10.0 positive automatic P 324 13.9369 -0.0134234 0.952381
GE.STU.BHZ. 2018-10-30T03:03:15.30 10.0 negative automatic P 327 13.8812 0.210769 0.952381
PL.KSP.BHZ. 2018-10-30T03:03:13.79 10.0 negative automatic P 349 13.6185 2.30074 0.909091
GE.MSBI.BHZ. 2018-10-30T03:03:10.97 10.0 positive automatic P 113 13.7457 -2.16285 0.888889
KO.GAZ.BHZ. 2018-10-30T03:03:06.54 10.0 positive automatic P 87 13.2872 -0.545363 0.763359
GE.SALP.BHZ. 2018-10-30T03:03:04.17 10.0 positive automatic P 110 13.2471 -2.27746 0.941176
OE.DAVA.BHZ. 2018-10-30T03:02:57.57 10.0 negative automatic P 325 12.4636 1.63433 0.909091
CZ.KHC.BHZ. 2018-10-30T03:02:56.07 10.0 positive automatic P 339 12.6052 -1.65117 0.888889
KO.BNN.BHZ. 2018-10-30T03:02:54.46 10.0 positive automatic P 79 12.1336 3.07308 0.892857
MN.TUE.BHZ. 2018-10-30T03:02:50.92 10.0 positive automatic P 321 12.1391 -0.636364 0.8
OE.KBA.BHZ. 2018-10-30T03:02:35.97 10.0 positive automatic P 333 10.877 1.71058 0.888889
GE.CSS.BHZ. 2018-10-30T03:02:29.10 10.0 negative automatic P 100 10.6745 -2.15673 0.909091
GE.PSZ.BHZ. 2018-10-30T03:02:26.40 10.0 positive automatic P 358 10.3745 -0.84543 0.952381
OE.ARSA.BHZ. 2018-10-30T03:02:25.67 10.0 negative automatic P 341 10.359 -1.2969 0.930233
RD.PGF.BHZ. 2018-10-30T03:02:24.68 10.0 positive automatic P 303 10.0934 1.25918 0.909091
IU.ANTO.BHZ.00 2018-10-30T03:02:22.70 10.0 positive automatic P 73 9.877 2.24473 0.720721
KO.MDUB.BHZ. 2018-10-30T03:02:08.22 10.0 positive automatic P 67 8.8198 2.26036 0.961538
HU.KOVH.BHZ. 2018-10-30T03:02:02.05 10.0 positive automatic P 349 8.7164 -2.35276 0.930233
MN.BZS.BHZ. 2018-10-30T03:01:55.17 10.0 positive automatic P 6 8.1129 -0.94752 0.930233
KO.ELL.BHZ. 2018-10-30T03:01:51.48 10.0 positive automatic P 93 7.5572 2.81816 0.934579
MN.BLY.BHZ. 2018-10-30T03:01:48.22 10.0 positive automatic P 342 7.6096 -0.991314 0.909091
MN.CLTB.BHZ. 2018-10-30T03:01:24.30 10.0 positive automatic P 272 5.7533 0.455875 0.930233
GE.KARP.BHZ. 2018-10-30T03:01:22.50 10.0 positive automatic P 108 5.7303 -0.954903 0.833333
HT.ALN.HHZ. 2018-10-30T03:01:19.87 10.0 positive automatic P 51 5.4586 0.223551 0.961538
KO.DKL.BHZ. 2018-10-30T03:01:17.96 10.0 positive automatic P 71 5.2667 0.959621 0.943396
MN.WDD.BHZ. 2018-10-30T03:01:13.77 10.0 negative automatic P 252 5.0699 -0.527351 0.930233
MN.PDG.BHZ. 2018-10-30T03:01:11.87 10.0 positive automatic P 350 4.9653 -0.98569 0.952381
IV.MRVN.BHZ. 2018-10-30T03:01:10.05 10.0 negative automatic P 318 4.8236 -0.960021 0.952381
MN.CUC.BHZ. 2018-10-30T03:01:04.92 10.0 positive automatic P 305 4.3767 0.0478495 0.909091
GE.MATE.BHZ. 2018-10-30T03:01:02.45 10.0 positive automatic P 318 4.2603 -0.799749 0.930233
GE.APE.BHZ. 2018-10-30T03:00:59.80 10.0 positive automatic P 95 4.0482 -0.556298 0.869565
MN.TIR.BHZ. 2018-10-30T03:00:57.63 10.0 negative automatic P 353 3.8243 0.416432 0.888889
MN.CEL.BHZ. 2018-10-30T03:00:54.97 10.0 negative automatic P 282 3.6837 -0.381777 0.909091
HT.FNA.HHZ. 2018-10-30T03:00:51.37 10.0 positive automatic P 12 3.3051 1.21418 0.947867
MN.TIP.BHZ. 2018-10-30T03:00:49.97 10.0 negative automatic P 300 3.338 -0.644346 0.952381
HT.LIT.HHZ. 2018-10-30T03:00:46.58 10.0 positive automatic P 31 2.9924 0.76898 0.947867
HL.KEK.HHZ. 2018-10-30T03:00:35.09 10.0 negative automatic P 346 2.2248 -0.121172 0.970874
TDMT - Time Domain Moment Tensor

TDMT details

Field Value
Magnitude5.3
Scalar Moment9.81444E+23 dyne-cm
Computed depth10 km
QualityAb
Variance Reduction63.11%
Double Couple46%
CLVD54%
ISO0%
Model usedCIA
Modeautomatic
Statuspreliminary

Moment Tensor Components

Component Value
Mrr-1.124225E+23
Mtt3.099248E+23
Mpp-1.975023E+23
Mrt2.50439E+23
Mrp-9.444663E+23
Mtp5.9676E+22

Nodal Planes

Name Strike Dip Rake
PN11638984
PN2626169

Focal Mechanism

Focal Mechanism

psmeca (GMT documentation)

20.4763 37.5521 10 163 89 84 62 6 169 9.81444 23 20.9763 38.0521

TDMT references

More info and references

Station Distribution

Station Distribution

TDMT station details

Sta Dist Azi V R zcor
TSLK 142.1 6.3 46.58% 108
LRSO 288.4 34.8 49.45% 127
MAKR 217.4 41.3 64.6% 121
ANX 171.5 47.2 51.8% 116
MG05 160.8 53 59.78% 114
PSAM 173.3 59.5 77.29% 115
KYMI 339.8 68.2 79.59% 132
VILL 258.6 73.9 61.01% 124
VLY 294.5 82.5 75.11% 128
VLI 238.2 112.1 68.32% 123
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol 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 full SEED format Download