Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 21-08-2018 and time 11:03:39 (Italy) in region 5 km SE Montecilfone (CB)

A magnitude ML 1.9 earthquake occured in region: 5 km SE Montecilfone (CB), on

  • 21-08-2018 09:03:39 (UTC)
  • 21-08-2018 11:03:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.8650, 14.8710 at 19 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
Guglionesi CB 6 5321 6669
Palata CB 7 1726 8395
Larino CB 8 6793 15188
Guardialfiera CB 9 1065 16253
Tavenna CB 10 718 16971
Acquaviva Collecroce CB 10 672 17643
San Martino in Pensilis CB 12 4793 22436
Montenero di Bisaccia CB 13 6675 29111
Montorio nei Frentani CB 13 437 29548
San Giacomo degli Schiavoni CB 13 1406 30954
Ururi CB 13 2693 33647
Portocannone CB 13 2551 36198
Castelmauro CB 14 1505 37703
Casacalenda CB 14 2135 39838
San Felice del Molise CB 14 634 40472
Mafalda CB 16 1211 41683
Montelongo CB 16 365 42048
Lupara CB 16 505 42553
Petacciato CB 17 3819 46372
Provvidenti CB 17 119 46491
Campomarino CB 17 7712 54203
Rotello CB 17 1212 55415
Civitacampomarano CB 18 417 55832
Castelbottaccio CB 18 312 56144
Morrone del Sannio CB 19 587 56731
Termoli CB 19 33739 90470
Montemitro CB 19 395 90865
Bonefro CB 19 1384 92249
Montefalcone nel Sannio CB 19 1556 93805
Santa Croce di Magliano CB 20 4435 98240

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)
91 Km W of Manfredonia (57279 inhabitants)
94 Km SE of Montesilvano (53738 inhabitants)
99 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 1.9 2018-08-21
09:03:39		 41.8652 14.871 19 2019-04-24
14:51:18		 Bollettino Sismico Italiano INGV 67246341
Reviewed
Rev100 		ML 2.0 2018-08-21
09:03:38		 41.8748 14.8875 22 2018-08-21
09:13:33		 Sala Sismica INGV-Roma 60035141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-21 09:03:39 ± 0.12
Latitude 41.8652 ± 0.0063
Longitude 14.8710 ± 0.0072
Depth (km) 19 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 67246341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 655
Semi-minor axis of confidence ellipse (meter) 241
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 210
Circular confidence region, given by single value of horizontal uncertainty (meter) 660.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 81
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 32
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) 0.09083
Epicentral distance of station farthest from the epicenter (degree) 0.87594
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.4
Num. used stations 42
Type of magnitude ML
Reference to an origin 67246341
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-04-04 10:54:08

ML:2.0

Field Value
Value 2.0
Uncertainty 0.4
Num. used stations 42
Type of magnitude ML
Reference to an origin 60035141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-21 09:13:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LPEL.HHZ. 2018-08-21T09:03:58.18 0.6 undecidable manual S 290 60.1953 100 0.43 42
IV.RNI2.HHZ. 2018-08-21T09:03:58.70 0.6 undecidable manual S 253 62.0934 99 0.45 41
IV.MIDA.HHZ. 2018-08-21T09:03:56.52 0.6 undecidable manual S 244 56.6988 101 -0.32 44
IV.APRC.HHZ. 2018-08-21T09:03:56.08 0.6 undecidable manual S 102 56.7987 101 -0.79 36
IV.SACR.HHZ. 2018-08-21T09:03:56.20 0.6 undecidable manual S 195 53.7018 101 0.17 45
IV.POFI.HHZ. 2018-08-21T09:03:55.05 0.6 undecidable manual P 261 97.2249 96 -0.45 39
IV.BSSO.HHZ. 2018-08-21T09:03:54.16 0.6 undecidable manual S 213 42.2244 105 1.11 32
IV.MSAG.HHZ. 2018-08-21T09:03:54.59 0.6 undecidable manual P 101 87.5457 96 0.57 39
IV.SGRT.HHZ. 2018-08-21T09:03:52.05 0.3 undecidable manual P 99 73.1712 98 0.23 65
IV.INTR.HHZ. 2018-08-21T09:03:52.74 0.1 undecidable manual P 282 81.3519 97 -0.33 83
IV.VAGA.HHZ. 2018-08-21T09:03:51.33 0.6 undecidable manual P 227 72.6717 98 -0.4 42
IV.RNI2.HHZ. 2018-08-21T09:03:50.10 0.1 undecidable manual P 253 62.0934 99 -0.03 91
IV.MOCO.HHZ. 2018-08-21T09:03:50.09 0.3 undecidable manual P 156 59.8956 100 0.3 65
IV.LPEL.HHZ. 2018-08-21T09:03:49.89 0.3 undecidable manual P 290 60.1953 100 0.05 68
IV.MELA.HHZ. 2018-08-21T09:03:49.33 0.1 undecidable manual S 130 27.5502 116 -0.05 95
IV.MIDA.HHZ. 2018-08-21T09:03:49.04 0.1 positive manual P 244 56.6988 101 -0.28 88
IV.APRC.HHZ. 2018-08-21T09:03:49.04 0.6 undecidable manual P 102 56.7987 101 -0.29 43
IV.SACR.HHZ. 2018-08-21T09:03:48.74 0.1 undecidable manual P 195 53.7018 101 -0.11 91
IV.CIGN.HHZ. 2018-08-21T09:03:48.30 0.3 undecidable manual S 173 23.5542 121 -0.14 71
IV.BSSO.HHZ. 2018-08-21T09:03:47.43 0.1 positive manual P 213 42.2244 105 0.3 89
IV.GATE.HHZ. 2018-08-21T09:03:47.61 0.3 undecidable manual P 175 39.1275 107 0.93 54
IV.FRES.HHZ. 2018-08-21T09:03:47.31 0.6 undecidable manual S 306 20.5683 125 -0.45 45
YD.T1411.HNZ. 2018-08-21T09:03:46.22 0.3 undecidable manual S 27 10.0788 148 0.4 70
YD.T1413.EHZ. 2018-08-21T09:03:46.22 0.3 undecidable manual S 97 12.1767 142 0.08 75
IV.TRIV.HHZ. 2018-08-21T09:03:45.14 0.3 undecidable manual P 248 28.6491 115 -0.02 73
YD.T1412.HNZ. 2018-08-21T09:03:45.26 0.3 undecidable manual S 224 12.3765 142 -0.92 56
IV.CIGN.HHZ. 2018-08-21T09:03:44.42 0.1 undecidable manual P 173 23.5542 121 -0.05 97
IV.FRES.HHZ. 2018-08-21T09:03:44.38 0.1 undecidable manual P 306 20.5683 125 0.31 93
IV.MELA.HHZ. 2018-08-21T09:03:44.94 0.1 negative manual P 130 27.5502 116 -0.07 96
YD.T1411.HNZ. 2018-08-21T09:03:43.17 0.1 positive manual P 27 10.0788 148 0.22 97
YD.T1413.EHZ. 2018-08-21T09:03:43.17 0.1 positive manual P 97 12.1767 142 0.03 100
YD.T1412.HNZ. 2018-08-21T09:03:42.71 0.1 positive manual P 224 12.3765 142 -0.45 91
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FRES.HHN. ML:1.9 0.000407 1.02 AML other m 2018-08-21T09:03:44.94
YD.T1412.HNE. ML:2.4 0.0019850000000000002 1.08 AML other m 2018-08-21T09:03:45.69
YD.T1412.HNN. ML:2.6 0.0031349999999999998 0.76 AML other m 2018-08-21T09:03:45.37
YD.T1412.EHN. ML:0.9 0.0000624 0.2 AML other m 2018-08-21T09:03:45.88
YD.T1412.EHE. ML:2.5 0.002255 1.1 AML other m 2018-08-21T09:03:46.78
YD.T1411.EHN. ML:2.6 0.00334 0.12 AML other m 2018-08-21T09:03:46.34
YD.T1411.HNN. ML:2.6 0.0032199999999999998 0.1 AML other m 2018-08-21T09:03:46.34
YD.T1413.EHE. ML:2.3 0.001413 0.12 AML other m 2018-08-21T09:03:46.37
YD.T1411.EHE. ML:2.8 0.005195 0.2 AML other m 2018-08-21T09:03:46.35
YD.T1411.HNE. ML:2.8 0.005285 0.2 AML other m 2018-08-21T09:03:46.35
YD.T1413.EHN. ML:2.7 0.0036849999999999995 0.5 AML other m 2018-08-21T09:03:46.34
IV.FRES.HHE. ML:2.0 0.000593 0.18 AML other m 2018-08-21T09:03:47.69
IV.CIGN.HHN. ML:1.9 0.000377 0.54 AML other m 2018-08-21T09:03:48.88
IV.MELA.HHN. ML:2.1 0.0006154999999999999 0.82 AML other m 2018-08-21T09:03:49.60
IV.MELA.HHE. ML:2.4 0.0010455 0.84 AML other m 2018-08-21T09:03:49.40
IV.CIGN.HHE. ML:1.8 0.00029 0.44 AML other m 2018-08-21T09:03:51.08
IV.TRIV.HHE. ML:1.7 0.0002045 0.7 AML other m 2018-08-21T09:03:54.40
IV.BSSO.HHE. ML:1.2 0.00004289999999999999 1.08 AML other m 2018-08-21T09:03:54.30
IV.GATE.HHE. ML:1.8 0.000179 0.24 AML other m 2018-08-21T09:03:55.50
IV.SACR.HHE. ML:1.8 0.000132 0.32 AML other m 2018-08-21T09:03:56.52
IV.BSSO.HHN. ML:1.1 0.00003335 1.28 AML other m 2018-08-21T09:03:56.06
IV.TRIV.HHN. ML:1.7 0.0001955 0.56 AML other m 2018-08-21T09:03:57.79
IV.SACR.HHN. ML:1.4 0.00005685 0.34 AML other m 2018-08-21T09:03:57.97
IV.MIDA.HHN. ML:1.9 0.00017449999999999999 0.26 AML other m 2018-08-21T09:03:57.74
IV.MIDA.HHE. ML:2.0 0.000231 0.16 AML other m 2018-08-21T09:03:57.81
IV.GATE.HHN. ML:1.7 0.00016999999999999999 0.38 AML other m 2018-08-21T09:03:58.29
IV.RNI2.HHN. ML:2.4 0.0004275 0.14 AML other m 2018-08-21T09:03:59.28
IV.RNI2.HNN. ML:2.3 0.00039400000000000004 0.16 AML other m 2018-08-21T09:03:59.28
IV.RNI2.HNE. ML:2.2 0.000272 0.14 AML other m 2018-08-21T09:03:59.27
IV.RNI2.HHE. ML:2.2 0.0002985 0.14 AML other m 2018-08-21T09:03:59.27
IV.LPEL.HHE. ML:2.0 0.0002065 0.14 AML other m 2018-08-21T09:04:00.75
IV.LPEL.HHN. ML:1.9 0.00016399999999999997 1.3 AML other m 2018-08-21T09:04:01.08
IV.MOCO.HHN. ML:1.4 0.0000504 0.54 AML other m 2018-08-21T09:04:03.59
IV.INTR.HHE. ML:1.8 0.00007364999999999999 1.34 AML other m 2018-08-21T09:04:04.16
IV.MOCO.HHE. ML:1.4 0.00005235 0.52 AML other m 2018-08-21T09:04:05.20
IV.SGRT.HHN. ML:2.0 0.00014000000000000001 0.5 AML other m 2018-08-21T09:04:05.80
IV.SGRT.HHE. ML:1.9 0.00013000000000000002 0.84 AML other m 2018-08-21T09:04:05.27
IV.INTR.HHN. ML:2.1 0.000174 1.52 AML other m 2018-08-21T09:04:05.18
IV.VAGA.HHE. ML:1.6 0.0000655 1.6 AML other m 2018-08-21T09:04:07.03
IV.VAGA.HHN. ML:1.6 0.000067 0.22 AML other m 2018-08-21T09:04:08.61
IV.POFI.HHE. ML:1.6 0.00003805 0.68 AML other m 2018-08-21T09:04:11.82
IV.POFI.HHN. ML:1.5 0.0000306 0.66 AML other m 2018-08-21T09:04:18.50
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