Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 30-01-2017 and time 09:28:55 (Italy) in region 4 km NE Ragalna (CT)

A magnitude ML 2.0 earthquake occured in region: 4 km NE Ragalna (CT), on

  • 30-01-2017 08:28:55 (UTC)
  • 30-01-2017 09:28:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.6620, 14.9660 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.

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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
Ragalna CT 4 3924 3924
Nicolosi CT 8 7463 11387
Belpasso CT 8 28108 39495
Santa Maria di Licodia CT 9 7641 47136
Biancavilla CT 9 24007 71143
Pedara CT 10 14102 85245
Paternò CT 11 48228 133473
Camporotondo Etneo CT 11 5023 138496
Trecastagni CT 11 10910 149406
San Pietro Clarenza CT 11 7743 157149
Adrano CT 12 36122 193271
Mascalucia CT 13 31958 225229
Zafferana Etnea CT 13 9517 234746
Viagrande CT 13 8563 243309
Tremestieri Etneo CT 13 20589 263898
Gravina di Catania CT 14 25838 289736
Aci Bonaccorsi CT 14 3524 293260
San Giovanni la Punta CT 15 23060 316320
Milo CT 15 1087 317407
Sant'Agata li Battiati CT 15 9479 326886
Aci Sant'Antonio CT 15 17984 344870
Santa Venerina CT 16 8592 353462
Misterbianco CT 16 49410 402872
San Gregorio di Catania CT 17 11966 414838
Motta Sant'Anastasia CT 17 12116 426954
Valverde CT 17 7840 434794
Aci Catena CT 17 29851 464645
Sant'Alfio CT 18 1582 466227
Bronte CT 18 19172 485399
Acireale CT 19 52622 538021
Aci Castello CT 20 18723 556744

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km W of Acireale (52622 inhabitants)
21 Km NW of Catania (314555 inhabitants)
73 Km NW of Siracusa (122291 inhabitants)
78 Km SW of Reggio di Calabria (183035 inhabitants)
79 Km SW of Messina (238439 inhabitants)
82 Km E of Caltanissetta (63360 inhabitants)
84 Km N of Ragusa (73313 inhabitants)
88 Km NE of Vittoria (63339 inhabitants)
91 Km N of Modica (54633 inhabitants)
92 Km NE of Gela (75827 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 2.0 2017-01-30
08:28:55		 37.6623 14.966 16 2018-01-10
09:44:29		 Bollettino Sismico Italiano INGV 46584991
Reviewed
Rev200 		ML 1.9 2017-01-30
08:28:54		 37.672 14.954 16 2017-01-30
12:02:20		 Sala Operativa INGV-OE (Catania) 40160151
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-01-30 08:28:55 ± 0.11
Latitude 37.6623 ± 0.0063
Longitude 14.9660 ± 0.0125
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 46584991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 971
Semi-minor axis of confidence ellipse (meter) 643
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 279
Circular confidence region, given by single value of horizontal uncertainty (meter) 970.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 71
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.03148
Epicentral distance of station farthest from the epicenter (degree) 0.71766
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 40160151
Agency INGV
Autore Sala Operativa INGV-OE (Catania)
Time of creation (UTC) 2017-01-30 12:02:20

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 11
Type of magnitude ML
Reference to an origin 46584991
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-09-13 13:49:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HMDC.HHZ. 2017-01-30T08:29:19.80 0.6 undecidable manual S 192 79.6647 94 0.95 34
IV.MEU.SHZ. 2017-01-30T08:29:14.73 0.6 undecidable manual S 191 62.2932 96 0.5 43
IV.NOV.HHZ. 2017-01-30T08:29:09.47 0.6 undecidable manual S 20 43.2234 99 0.3 48
IV.HMDC.HHZ. 2017-01-30T08:29:08.59 0.3 undecidable manual P 192 79.6647 94 -0.21 67
IV.HLNI.HHZ. 2017-01-30T08:29:07.60 0.6 undecidable manual S 193 35.742 102 0.37 46
IV.GALF.HHZ. 2017-01-30T08:29:07.08 0.6 undecidable manual S 279 35.4423 102 -0.07 49
IV.MEU.SHZ. 2017-01-30T08:29:05.92 0.6 undecidable manual P 191 62.2932 96 -0.21 46
IV.MSFR.HHZ. 2017-01-30T08:29:05.12 0.3 undecidable manual P 322 52.7028 97 0.46 68
IV.EPZF.HHZ. 2017-01-30T08:29:04.14 0.6 undecidable manual S 332 20.3685 117 0.83 42
IV.NOV.HHZ. 2017-01-30T08:29:03.02 0.1 undecidable manual P 20 43.2234 99 -0.19 95
IV.EMSG.HHZ. 2017-01-30T08:29:03.13 0.6 undecidable manual S 355 17.6712 122 0.44 48
IV.HAGA.HHZ. 2017-01-30T08:29:03.36 0.3 undecidable manual P 158 45.0216 99 -0.13 73
IV.AIO.HHZ. 2017-01-30T08:29:02.89 0.3 undecidable manual P 34 41.5251 100 -0.06 74
IV.GALF.HHZ. 2017-01-30T08:29:02.05 0.6 undecidable manual P 279 35.4423 102 0.01 50
IV.ESML.HHZ. 2017-01-30T08:29:01.13 0.6 undecidable manual S 237 9.0798 145 0.12 51
IV.HLNI.HHZ. 2017-01-30T08:29:01.68 0.1 undecidable manual P 193 35.742 102 -0.41 94
IV.ESLN.HHZ. 2017-01-30T08:29:00.58 0.6 undecidable manual S 12 3.4965 165 0.2 51
IV.EPOZ.HHZ. 2017-01-30T08:29:00.22 0.3 undecidable manual P 87 19.5693 118 0.5 70
IV.EMSG.HHZ. 2017-01-30T08:28:59.15 0.1 undecidable manual P 355 17.6712 122 -0.32 97
IV.EPZF.HHZ. 2017-01-30T08:28:59.48 0.3 undecidable manual P 332 20.3685 117 -0.35 72
IV.ESML.HHZ. 2017-01-30T08:28:58.04 0.1 undecidable manual P 237 9.0798 145 -0.46 97
IV.ESLN.HHZ. 2017-01-30T08:28:57.79 0.1 positive manual P 12 3.4965 165 -0.34 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.AIO.HHE. ML:1.5 0.00010345 1.36 AML other m 2017-01-30T08:29:10.70
IV.AIO.HHN. ML:1.5 0.0001053 1.02 AML other m 2017-01-30T08:29:12.45
IV.EMSG.HHN. ML:2.4 0.001565 0.54 AML other m 2017-01-30T08:29:03.15
IV.EMSG.HHE. ML:2.3 0.00125 0.52 AML other m 2017-01-30T08:29:08.29
IV.EPZF.HHE. ML:2.1 0.000836 0.84 AML other m 2017-01-30T08:29:06.49
IV.EPZF.HHN. ML:2.3 0.0013485 0.28 AML other m 2017-01-30T08:29:04.50
IV.ESLN.HHN. ML:2.1 0.001445 0.54 AML other m 2017-01-30T08:29:07.35
IV.ESLN.HHE. ML:2.2 0.0015899999999999998 1.56 AML other m 2017-01-30T08:29:00.05
IV.ESML.HHE. ML:1.9 0.0007244999999999999 0.22 AML other m 2017-01-30T08:29:05.40
IV.ESML.HHN. ML:1.9 0.0007 0.74 AML other m 2017-01-30T08:29:01.89
IV.GALF.HHN. ML:1.8 0.000227 1.22 AML other m 2017-01-30T08:29:14.76
IV.GALF.HHE. ML:1.8 0.000217 1.32 AML other m 2017-01-30T08:29:14.16
IV.HAGA.HHN. ML:1.8 0.000186 0.46 AML other m 2017-01-30T08:29:11.28
IV.HAGA.HHE. ML:2.0 0.0003085 0.58 AML other m 2017-01-30T08:29:10.76
IV.HLNI.HHE. ML:1.8 0.00022250000000000001 0.16 AML other m 2017-01-30T08:29:08.37
IV.HLNI.HHN. ML:1.7 0.00019800000000000002 0.1 AML other m 2017-01-30T08:29:09.58
IV.HMDC.HHN. ML:2.1 0.00019250000000000002 1.28 AML other m 2017-01-30T08:29:22.33
IV.HMDC.HHE. ML:2.1 0.0001825 1.14 AML other m 2017-01-30T08:29:22.85
IV.MEU.SHE. ML:0.0 0.000201 1.2 AML other m 2017-01-30T08:29:14.93
IV.MEU.SHN. ML:0.0 0.000261 0.44 AML other m 2017-01-30T08:29:18.91
IV.NOV.HHE. ML:1.8 0.0001985 0.5 AML other m 2017-01-30T08:29:12.08
IV.NOV.HHN. ML:1.8 0.00019700000000000002 0.44 AML other m 2017-01-30T08:29:11.23
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