Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 20-08-2018 and time 02:06:48 (Italy) in region 5 km SE Montecilfone (CB)

A magnitude ML 1.7 earthquake occured in region: 5 km SE Montecilfone (CB), on

  • 20-08-2018 00:06:48 (UTC)
  • 20-08-2018 02:06:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.8630, 14.8620 at 21 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
Montecilfone CB 5 1348 1348
Palata CB 7 1726 3074
Guglionesi CB 7 5321 8395
Larino CB 8 6793 15188
Guardialfiera CB 9 1065 16253
Acquaviva Collecroce CB 10 672 16925
Tavenna CB 10 718 17643
San Martino in Pensilis CB 12 4793 22436
Montenero di Bisaccia CB 13 6675 29111
Montorio nei Frentani CB 13 437 29548
Castelmauro CB 13 1505 31053
San Giacomo degli Schiavoni CB 14 1406 32459
Ururi CB 14 2693 35152
Casacalenda CB 14 2135 37287
San Felice del Molise CB 14 634 37921
Portocannone CB 14 2551 40472
Mafalda CB 15 1211 41683
Lupara CB 15 505 42188
Montelongo CB 16 365 42553
Provvidenti CB 16 119 42672
Civitacampomarano CB 17 417 43089
Petacciato CB 17 3819 46908
Rotello CB 17 1212 48120
Castelbottaccio CB 18 312 48432
Campomarino CB 18 7712 56144
Montemitro CB 18 395 56539
Morrone del Sannio CB 18 587 57126
Montefalcone nel Sannio CB 18 1556 58682
Bonefro CB 19 1384 60066
Termoli CB 19 33739 93805
Ripabottoni CB 20 514 94319
Santa Croce di Magliano CB 20 4435 98754

Municipalities with at least 50000 inhabitants

An earthquake occurred to
47 Km W of San Severo (53905 inhabitants)
72 Km NW of Foggia (151991 inhabitants)
79 Km SE of Chieti (51815 inhabitants)
82 Km N of Benevento (60091 inhabitants)
86 Km SE of Pescara (121014 inhabitants)
92 Km W of Manfredonia (57279 inhabitants)
93 Km SE of Montesilvano (53738 inhabitants)
98 Km NE of Caserta (76326 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 1.7 2018-08-20
00:06:48		 41.8627 14.8622 21 2019-04-24
14:50:59		 Bollettino Sismico Italiano INGV 64457421
Reviewed
Rev100 		ML 2.1 2018-08-20
00:06:48		 41.8622 14.8855 17 2018-08-20
00:22:30		 Sala Sismica INGV-Roma 59980821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-20 00:06:48 ± 0.1
Latitude 41.8627 ± 0.0063
Longitude 14.8622 ± 0.0060
Depth (km) 21 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 64457421

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 665
Semi-minor axis of confidence ellipse (meter) 228
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 21
Circular confidence region, given by single value of horizontal uncertainty (meter) 670.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 151
Number of associated phases, regardless of their use for origin computation 48
Number of defining phases 40
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.97486
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 27
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.4
Num. used stations 34
Type of magnitude ML
Reference to an origin 64457421
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-01-02 18:45:24

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 59980821
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-20 00:22:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.IST3.HHZ. 2018-08-20T00:07:40.33 3.0 negative manual Pg 3.11 0
IV.CET2.HHZ. 2018-08-20T00:07:29.87 3.0 undecidable manual Pn 0.67 0
IV.VVLD.HHZ. 2018-08-20T00:07:18.58 0.3 undecidable manual S 271 102.3198 96 0.11 64
IV.T0110.HHZ. 2018-08-20T00:07:17.98 0.6 undecidable manual S 295 98.2239 97 0.6 38
IV.INTR.HHZ. 2018-08-20T00:07:13.01 0.3 undecidable manual S 282 80.7636 98 0.27 64
IV.SGRT.HHZ. 2018-08-20T00:07:11.58 0.3 undecidable manual S 99 73.8705 99 0.64 57
YD.MCI.EHZ. 2018-08-20T00:07:09.29 3.0 undecidable manual P 0
IV.RNI2.HHZ. 2018-08-20T00:07:08.20 0.3 undecidable manual S 253 61.2942 102 0.56 63
IV.SGG.HNZ. 2018-08-20T00:07:08.70 0.3 undecidable manual S 217 66.2781 101 -0.24 65
IV.LPEL.HHZ. 2018-08-20T00:07:07.40 0.3 undecidable manual S 290 59.5959 102 0.21 68
IV.LRP.EHZ. 2018-08-20T00:07:07.62 1.0 undecidable manual P 258 108.2139 96 0.9 16
IV.PAOL.HNZ. 2018-08-20T00:07:07.02 3.0 undecidable manual P 2.13 0
IV.SNAL.HHZ. 2018-08-20T00:07:06.79 1.0 undecidable manual P 164 107.9142 96 0.12 21
IV.APRC.HHZ. 2018-08-20T00:07:06.20 0.3 undecidable manual S 101 57.498 103 -0.45 65
IV.VCEL.EHZ. 2018-08-20T00:07:06.38 0.6 undecidable manual P 305 102.7194 96 0.51 39
IV.VVLD.HHZ. 2018-08-20T00:07:05.38 0.3 undecidable manual P 271 102.3198 96 -0.44 59
IV.PIGN.HNZ. 2018-08-20T00:07:05.06 0.6 undecidable manual P 218 92.8404 97 0.7 37
IV.T0110.HHZ. 2018-08-20T00:07:05.40 0.3 undecidable manual P 295 98.2239 97 0.21 63
IV.SACR.HHZ. 2018-08-20T00:07:05.70 0.6 undecidable manual S 194 53.2023 104 0.17 46
IV.CAFE.HNZ. 2018-08-20T00:07:04.76 1.0 undecidable manual P 161 97.7244 97 -0.35 20
IV.POFI.HNZ. 2018-08-20T00:07:04.40 0.6 undecidable manual P 261 96.4257 97 -0.52 39
IV.MSAG.HHZ. 2018-08-20T00:07:03.91 1.0 undecidable manual P 101 88.245 98 0.25 21
IV.BSSO.HHZ. 2018-08-20T00:07:03.00 0.6 undecidable manual S 212 41.5251 109 0.46 45
IV.SGTA.HNZ. 2018-08-20T00:07:03.68 0.3 undecidable manual P 152 90.9423 97 -0.39 61
IV.INTR.HHZ. 2018-08-20T00:07:02.11 0.1 negative manual P 282 80.7636 98 -0.4 83
IV.VITU.HNZ. 2018-08-20T00:07:01.82 0.3 undecidable manual P 194 77.7666 99 -0.25 65
IV.SGRT.HHZ. 2018-08-20T00:07:01.59 0.3 undecidable manual P 99 73.8705 99 0.12 66
IV.CERA.HNZ. 2018-08-20T00:07:01.07 0.1 negative manual P 247 75.7686 99 -0.69 75
IV.PSB1.HHZ. 2018-08-20T00:07:00.95 0.6 undecidable manual P 183 71.0733 100 -0.09 45
IV.VAGA.HNZ. 2018-08-20T00:07:00.70 0.3 undecidable manual P 227 71.8725 100 -0.47 62
IV.LPEL.HHZ. 2018-08-20T00:06:59.56 0.6 undecidable manual P 290 59.5959 102 0.25 45
IV.SGG.HNZ. 2018-08-20T00:06:59.98 0.3 undecidable manual P 217 66.2781 101 -0.34 65
IV.APRC.HHZ. 2018-08-20T00:06:59.14 0.3 undecidable manual P 101 57.498 103 0.15 68
IV.RNI2.HHZ. 2018-08-20T00:06:59.47 0.1 undecidable manual P 253 61.2942 102 -0.1 91
IV.MOCO.HHZ. 2018-08-20T00:06:59.68 0.3 undecidable manual P 156 59.8956 102 0.32 66
IV.CIGN.HHN. 2018-08-20T00:06:58.36 0.3 undecidable manual S 171 23.3544 125 0.18 73
IV.SACR.HHZ. 2018-08-20T00:06:58.22 0.1 negative manual P 194 53.2023 104 -0.13 92
IV.MELA.HHZ. 2018-08-20T00:06:58.90 0.1 undecidable manual S 128 27.9498 119 -0.32 94
IV.BSSO.HHZ. 2018-08-20T00:06:56.74 0.1 positive manual P 212 41.5251 109 0.12 95
IV.FRES.HHZ. 2018-08-20T00:06:56.71 0.6 undecidable manual S 308 20.0688 130 -0.77 40
IV.GATE.HHZ. 2018-08-20T00:06:56.96 0.1 negative manual P 174 39.0276 110 0.71 81
IV.CIGN.HHN. 2018-08-20T00:06:55.00 1.0 undecidable manual P 171 23.3544 125 0.89 19
YD.T1411.HNZ. 2018-08-20T00:06:54.78 3.0 undecidable manual S 0.17 0
YD.T1413.EHZ. 2018-08-20T00:06:54.55 3.0 undecidable manual S -0.24 0
IV.MELA.HHZ. 2018-08-20T00:06:54.44 0.1 negative manual P 128 27.9498 119 -0.26 95
IV.FRES.HHZ. 2018-08-20T00:06:53.74 0.1 negative manual P 308 20.0688 130 0.04 100
YD.T1411.HNZ. 2018-08-20T00:06:52.58 3.0 positive manual P 0.56 0
YD.T1413.EHZ. 2018-08-20T00:06:52.60 3.0 undecidable manual P 0.48 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
YD.T1413.EHE. ML:2.1 0.0009207093 1.26 AML other m 2018-08-20T00:06:55.92
YD.T1411.HNN. ML:2.4 0.0019943495 0.12 AML other m 2018-08-20T00:06:55.76
YD.T1411.EHN. ML:2.5 0.002056304 0.12 AML other m 2018-08-20T00:06:55.76
YD.T1411.HNE. ML:2.7 0.0035778499999999996 0.14 AML other m 2018-08-20T00:06:55.75
YD.T1411.EHE. ML:2.7 0.0035568970000000003 0.14 AML other m 2018-08-20T00:06:55.75
YD.T1413.HNE. ML:2.2 0.0009976257 0.37 AML other m 2018-08-20T00:06:55.92
YD.T1413.EHN. ML:2.2 0.00108573765 0.16 AML other m 2018-08-20T00:06:55.92
YD.T1413.HNN. ML:2.2 0.0009999871 0.16 AML other m 2018-08-20T00:06:55.92
IV.FRES.HHN. ML:1.7 0.00026646015 0.1 AML other m 2018-08-20T00:06:56.87
IV.FRES.HHE. ML:1.9 0.00043118270000000003 0.08 AML other m 2018-08-20T00:06:56.90
IV.MELA.HNE. ML:2.1 0.00048833655 0.64 AML other m 2018-08-20T00:06:59.00
IV.MELA.HNN. ML:2.1 0.00053235515 0.08 AML other m 2018-08-20T00:06:59.47
IV.MELA.HHN. ML:2.2 0.00062573055 0.08 AML other m 2018-08-20T00:06:59.47
IV.MELA.HHE. ML:2.0 0.0004155459 0.32 AML other m 2018-08-20T00:06:59.32
IV.BSSO.HHE. ML:0.8 0.000020864419999999998 0.76 AML other m 2018-08-20T00:07:03.70
IV.BSSO.HHN. ML:0.7 0.00001548492 0.62 AML other m 2018-08-20T00:07:04.01
IV.BSSO.HNE. ML:1.4 0.000070778405 0.72 AML other m 2018-08-20T00:07:03.71
IV.BSSO.HNN. ML:1.3 0.000057976784999999996 0.3 AML other m 2018-08-20T00:07:04.31
IV.SACR.HNE. ML:1.7 0.00010291292499999998 0.36 AML other m 2018-08-20T00:07:05.77
IV.SACR.HHE. ML:1.6 0.0000937907 0.34 AML other m 2018-08-20T00:07:05.94
IV.SACR.HNN. ML:1.4 0.00005215505500000001 0.66 AML other m 2018-08-20T00:07:06.41
IV.SACR.HHN. ML:1.2 0.00004048601 0.44 AML other m 2018-08-20T00:07:06.81
IV.APRC.HNE. ML:1.5 0.00007078196 0.5 AML other m 2018-08-20T00:07:07.08
IV.APRC.HHE. ML:1.4 0.000047738500000000004 0.1 AML other m 2018-08-20T00:07:06.83
IV.APRC.HHN. ML:1.7 0.00010350098999999998 0.84 AML other m 2018-08-20T00:07:07.35
IV.LPEL.HHN. ML:1.9 0.00013986094999999998 0.08 AML other m 2018-08-20T00:07:07.69
IV.RNI2.HHN. ML:1.8 0.00012819802999999998 0.14 AML other m 2018-08-20T00:07:08.51
IV.RNI2.HNN. ML:1.2 0.0000310854065 0.24 AML other m 2018-08-20T00:07:08.86
IV.RNI2.HHE. ML:1.7 0.00008617999 0.34 AML other m 2018-08-20T00:07:08.72
IV.RNI2.HNE. ML:1.7 0.000086696015 0.36 AML other m 2018-08-20T00:07:08.90
IV.INTR.HNE. ML:1.5 0.00003990224 0.08 AML other m 2018-08-20T00:07:13.36
IV.INTR.HHE. ML:1.6 0.00005039495 0.14 AML other m 2018-08-20T00:07:13.43
IV.INTR.HNN. ML:1.5 0.000046762295000000004 0.08 AML other m 2018-08-20T00:07:13.40
IV.INTR.HHN. ML:1.4 0.0000330447945 0.08 AML other m 2018-08-20T00:07:13.40
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