Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 31-12-2017 and time 09:52:29 (Italy) in region 5 km SE Giffone (RC)

A magnitude ML 2.2 earthquake occured in region: 5 km SE Giffone (RC), on

  • 31-12-2017 08:52:29 (UTC)
  • 31-12-2017 09:52:29 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.3950, 16.1730 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
Giffone RC 5 1907 1907
San Giorgio Morgeto RC 6 3058 4965
Mammola RC 7 2847 7812
Cinquefrondi RC 7 6539 14351
Polistena RC 9 10496 24847
Maropati RC 9 1524 26371
Grotteria RC 9 3154 29525
Anoia RC 9 2212 31737
Canolo RC 9 746 32483
Cittanova RC 9 10410 42893
Galatro RC 9 1709 44602
San Giovanni di Gerace RC 10 481 45083
Melicucco RC 11 5101 50184
Martone RC 11 530 50714
Agnana Calabra RC 11 562 51276
Feroleto della Chiesa RC 12 1695 52971
Gioiosa Ionica RC 13 7181 60152
Laureana di Borrello RC 13 5174 65326
Antonimina RC 14 1317 66643
Gerace RC 14 2652 69295
Candidoni RC 15 416 69711
Taurianova RC 15 15636 85347
San Pietro di Caridà RC 15 1195 86542
Serrata RC 15 845 87387
Dinami VV 15 2168 89555
Fabrizia VV 15 2195 91750
Molochio RC 16 2564 94314
Terranova Sappo Minulio RC 16 523 94837
Ciminà RC 17 568 95405
Marina di Gioiosa Ionica RC 17 6625 102030
Nardodipace VV 17 1305 103335
Siderno RC 18 18191 121526
Acquaro VV 18 2484 124010
Mongiana VV 19 740 124750
Varapodio RC 19 2160 126910
Rizziconi RC 19 7829 134739
Portigliola RC 19 1201 135940
Arena VV 19 1456 137396
Dasà VV 19 1208 138604
Locri RC 19 12504 151108
Sant'Ilario dello Ionio RC 19 1377 152485
Rosarno RC 20 14841 167326
Oppido Mamertina RC 20 5332 172658

Municipalities with at least 50000 inhabitants

An earthquake occurred to
56 Km NE of Reggio di Calabria (183035 inhabitants)
58 Km E of Messina (238439 inhabitants)
66 Km S of Lamezia Terme (70714 inhabitants)
68 Km SW of Catanzaro (90612 inhabitants)
100 Km S of Cosenza (67546 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 		ML 2.2 2017-12-31
08:52:29		 38.395 16.1728 8 2018-09-04
09:10:41		 Bollettino Sismico Italiano INGV 54083211
Reviewed
Rev100 		ML 2.2 2017-12-31
08:52:29		 38.3897 16.1732 9 2017-12-31
09:09:52		 Sala Sismica INGV-Roma 52931081
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-12-31 08:52:29 ± 0.11
Latitude 38.3950 ± 0.0063
Longitude 16.1728 ± 0.0080
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 54083211

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 783
Semi-minor axis of confidence ellipse (meter) 457
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 134
Circular confidence region, given by single value of horizontal uncertainty (meter) 780.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 121
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 36
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.21494
Epicentral distance of station farthest from the epicenter (degree) 1.89847
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 28
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations 21
Type of magnitude ML
Reference to an origin 54083211
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-07-26 11:09:30

ML:2.2

Field Value
Value 2.2
Uncertainty 0.1
Num. used stations 22
Type of magnitude ML
Reference to an origin 52931081
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-12-31 09:09:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RAFF.HHZ. 2017-12-31T08:53:02.86 0.6 undecidable manual P 231 205.1391 38 0.7 25
IV.MTSN.HHN. 2017-12-31T08:53:02.88 1.0 undecidable manual P 350 210.7335 38 0.03 14
IV.CAR1.HHZ. 2017-12-31T08:52:58.59 0.6 undecidable manual S 2 95.238 50 0.52 40
IV.SALB.HHZ. 2017-12-31T08:52:57.60 0.6 undecidable manual P 5 165.1125 50 0.81 29
IV.SSY.HHE. 2017-12-31T08:52:57.09 1.0 undecidable manual P 215 167.7099 50 -0.11 18
IV.SERS.HNE. 2017-12-31T08:52:56.07 0.6 undecidable manual S 32 83.9493 50 1.02 33
IV.HLNI.HHE. 2017-12-31T08:52:56.38 0.6 undecidable manual P 225 162.615 50 -0.04 37
IV.HAGA.HHZ. 2017-12-31T08:52:55.76 1.0 undecidable manual P 216 152.0367 50 0.98 14
IV.GRIS.HNE. 2017-12-31T08:52:54.20 0.6 undecidable manual P 350 151.737 50 -0.54 35
IV.TDS.HHZ. 2017-12-31T08:52:53.50 0.6 undecidable manual P 6 141.0477 50 0.41 37
IV.MSFR.HHZ. 2017-12-31T08:52:53.52 0.6 undecidable manual P 254 143.5452 50 0.05 40
IV.IFIL.HHN. 2017-12-31T08:52:53.23 0.6 undecidable manual P 278 139.9488 50 0.31 38
IV.EPZF.HHZ. 2017-12-31T08:52:52.55 1.0 undecidable manual P 242 131.1687 50 0.99 15
IV.PIPA.HHZ. 2017-12-31T08:52:52.44 1.0 undecidable manual P 24 133.0668 50 0.58 18
IV.CET2.HHZ. 2017-12-31T08:52:50.93 0.6 undecidable manual P 352 127.1727 50 -0.02 41
IV.CELI.HHZ. 2017-12-31T08:52:49.22 0.3 undecidable manual P 14 115.4955 50 0.07 63
IV.MTTG.HHZ. 2017-12-31T08:52:49.27 0.6 undecidable manual S 224 59.8956 50 0.64 40
IV.MUCR.HHE. 2017-12-31T08:52:49.73 0.6 undecidable manual P 251 119.7912 50 -0.08 42
IV.IVPL.HHZ. 2017-12-31T08:52:47.25 1.0 undecidable manual P 269 103.7184 50 -0.09 21
IV.NOV.HHZ. 2017-12-31T08:52:47.58 1.0 undecidable manual P 246 99.0231 50 0.96 16
IV.SPS2.HHE. 2017-12-31T08:52:47.26 0.6 undecidable manual P 8 100.4217 50 0.43 40
IV.CAR1.HHZ. 2017-12-31T08:52:46.12 0.6 undecidable manual P 2 95.238 50 0.08 44
MN.TIP.HHN. 2017-12-31T08:52:46.13 0.6 undecidable manual P 30 100.6215 50 -0.74 36
IV.GRI.EHZ. 2017-12-31T08:52:46.31 0.3 undecidable manual S 24 52.0035 50 -0.21 69
IV.AIO.HHZ. 2017-12-31T08:52:46.94 0.6 undecidable manual P 240 94.4388 50 1.03 32
IV.SERS.HNE. 2017-12-31T08:52:43.90 0.3 undecidable manual P 32 83.9493 50 -0.39 63
IV.SOI.EHZ. 2017-12-31T08:52:41.87 0.3 undecidable manual S 196 37.1295 50 -0.69 62
IV.JOPP.HHZ. 2017-12-31T08:52:41.10 0.3 undecidable manual S 313 34.2435 50 -0.68 62
IV.MTTG.HHZ. 2017-12-31T08:52:40.57 0.6 undecidable manual P 224 59.8956 50 -0.01 47
MN.CEL.HHZ. 2017-12-31T08:52:39.74 0.3 undecidable manual S 238 28.4493 106 -0.16 73
IV.PLAC.HHZ. 2017-12-31T08:52:38.29 0.3 undecidable manual S 75 23.8539 109 -0.08 75
IV.GRI.EHZ. 2017-12-31T08:52:38.99 0.3 undecidable manual P 24 52.0035 50 -0.38 67
IV.SOI.EHZ. 2017-12-31T08:52:36.83 0.1 undecidable manual P 196 37.1295 50 -0.25 94
IV.JOPP.HHZ. 2017-12-31T08:52:36.29 0.1 undecidable manual P 313 34.2435 50 -0.34 93
MN.CEL.HHZ. 2017-12-31T08:52:35.65 0.3 undecidable manual P 238 28.4493 106 0.11 74
IV.PLAC.HHZ. 2017-12-31T08:52:34.72 0.1 undecidable manual P 75 23.8539 109 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PLAC.HHN. ML:2.3 0.0011736855 0.4608 AML other m 2017-12-31T08:52:38.76
IV.PLAC.HNE. ML:2.2 0.0011427775 0.48 AML other m 2017-12-31T08:52:39.00
MN.CEL.HHN. ML:2.0 0.0005249591999999999 0.2752 AML other m 2017-12-31T08:52:40.36
MN.CEL.HNN. ML:1.9 0.000427454 0.2944 AML other m 2017-12-31T08:52:40.36
IV.PLAC.HNN. ML:2.1 0.0008710393000000001 0.4224 AML other m 2017-12-31T08:52:41.40
IV.PLAC.HHE. ML:2.1 0.0008928262000000001 0.4224 AML other m 2017-12-31T08:52:41.40
MN.CEL.HNE. ML:2.2 0.0009226379 0.2176 AML other m 2017-12-31T08:52:41.65
MN.CEL.HHE. ML:2.3 0.0011529265 0.2176 AML other m 2017-12-31T08:52:41.65
IV.JOPP.HHE. ML:2.0 0.000443474 0.2176 AML other m 2017-12-31T08:52:42.27
IV.JOPP.HHN. ML:2.2 0.0006127595999999999 0.1984 AML other m 2017-12-31T08:52:42.95
IV.SOI.EHN. ML:2.0 0.00038068385000000006 0.2944 AML other m 2017-12-31T08:52:44.42
IV.SOI.EHE. ML:2.2 0.0005819896 0.3776 AML other m 2017-12-31T08:52:45.48
IV.GRI.EHE. ML:2.3 0.0005679077 0.48 AML other m 2017-12-31T08:52:48.59
IV.GRI.EHN. ML:2.3 0.00045200134999999995 0.2624 AML other m 2017-12-31T08:52:48.66
IV.MTTG.HHN. ML:2.0 0.0002165152 0.3392 AML other m 2017-12-31T08:52:51.87
IV.MTTG.HHE. ML:2.0 0.00021926825 0.6592 AML other m 2017-12-31T08:52:54.85
IV.CAR1.HHN. ML:2.4 0.00024257105 0.4608 AML other m 2017-12-31T08:53:00.99
IV.CAR1.HHE. ML:2.4 0.0002530257 0.5568 AML other m 2017-12-31T08:53:06.96
IV.CAR1.HNE. ML:2.4 0.0002737706 0.5696 AML other m 2017-12-31T08:53:06.68
IV.CELI.HHE. ML:2.1 0.00009613174500000001 0.3776 AML other m 2017-12-31T08:53:08.62
IV.CELI.HHN. ML:2.1 0.00010589553 0.2752 AML other m 2017-12-31T08:53:09.26
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