Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 25-08-2018 and time 18:49:57 (Italy) in region 6 km S Montecilfone (CB)

A magnitude ML 2.1 earthquake occured in region: 6 km S Montecilfone (CB), on

  • 25-08-2018 16:49:57 (UTC)
  • 25-08-2018 18:49:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.8540, 14.8530 at 17 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 6 1348 1348
Palata CB 7 1726 3074
Guardialfiera CB 8 1065 4139
Larino CB 8 6793 10932
Guglionesi CB 8 5321 16253
Acquaviva Collecroce CB 9 672 16925
Tavenna CB 10 718 17643
Castelmauro CB 12 1505 19148
Montorio nei Frentani CB 12 437 19585
Casacalenda CB 13 2135 21720
Montenero di Bisaccia CB 13 6675 28395
San Martino in Pensilis CB 13 4793 33188
San Felice del Molise CB 13 634 33822
Ururi CB 14 2693 36515
Lupara CB 14 505 37020
San Giacomo degli Schiavoni CB 15 1406 38426
Portocannone CB 15 2551 40977
Mafalda CB 15 1211 42188
Provvidenti CB 15 119 42307
Montelongo CB 15 365 42672
Civitacampomarano CB 16 417 43089
Castelbottaccio CB 16 312 43401
Morrone del Sannio CB 17 587 43988
Rotello CB 17 1212 45200
Montemitro CB 18 395 45595
Montefalcone nel Sannio CB 18 1556 47151
Petacciato CB 18 3819 50970
Bonefro CB 18 1384 52354
Ripabottoni CB 19 514 52868
Campomarino CB 19 7712 60580
Lucito CB 19 696 61276
Santa Croce di Magliano CB 19 4435 65711
Castellino del Biferno CB 20 545 66256
Tufillo CH 20 406 66662

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km W of San Severo (53905 inhabitants)
72 Km NW of Foggia (151991 inhabitants)
79 Km SE of Chieti (51815 inhabitants)
81 Km N of Benevento (60091 inhabitants)
86 Km SE of Pescara (121014 inhabitants)
92 Km W of Manfredonia (57279 inhabitants)
94 Km SE of Montesilvano (53738 inhabitants)
97 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 2.1 2018-08-25
16:49:57		 41.8543 14.8532 17 2019-04-24
14:51:15		 Bollettino Sismico Italiano INGV 67008951
Reviewed
Rev100 		ML 2.1 2018-08-25
16:49:57		 41.8527 14.8623 15 2018-08-25
16:57:23		 Sala Sismica INGV-Roma 60203131
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-25 16:49:57 ± 0.14
Latitude 41.8543 ± 0.0072
Longitude 14.8532 ± 0.0085
Depth (km) 17 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 67008951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 770
Semi-minor axis of confidence ellipse (meter) 374
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 144
Circular confidence region, given by single value of horizontal uncertainty (meter) 770.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 80
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.87414
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 40
Type of magnitude ML
Reference to an origin 67008951
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-03-28 11:04:04

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 40
Type of magnitude ML
Reference to an origin 60203131
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-25 16:57:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.IMOL.HNZ. 2018-08-25T16:51:37.45 3.0 undecidable manual Sg 8.74 0
IV.RIBO.EHZ.01 2018-08-25T16:51:24.24 3.0 undecidable manual Sn 4.54 0
IV.CMDO.HHZ. 2018-08-25T16:51:12.60 3.0 undecidable manual Pg 9.17 0
IV.VENL.HNZ. 2018-08-25T16:51:05.62 3.0 undecidable manual Pg 8.58 0
IV.CRJA.HHZ. 2018-08-25T16:51:02.39 3.0 negative manual Pn 1.29 0
IV.PE3.EHZ. 2018-08-25T16:50:41.43 3.0 undecidable manual Pn 4.51 0
IV.SPS2.HHZ. 2018-08-25T16:50:40.11 3.0 negative manual Pn -0.8 0
IV.ATCC.EHZ. 2018-08-25T16:50:31.38 3.0 undecidable manual Pn 0.28 0
IV.LPEL.HHZ. 2018-08-25T16:50:16.23 0.6 undecidable manual S 291 59.1963 98 0.29 43
IV.SACR.HHZ. 2018-08-25T16:50:14.31 0.6 undecidable manual S 194 52.1034 99 0.24 44
IV.CAFE.HHZ. 2018-08-25T16:50:13.45 0.3 undecidable manual P 161 97.0251 94 -0.52 57
IV.MSAG.HHZ. 2018-08-25T16:50:13.68 0.3 undecidable manual P 100 88.8444 95 0.97 50
IV.BSSO.HHZ. 2018-08-25T16:50:12.22 0.6 undecidable manual S 212 40.4262 102 1.24 30
IV.SGRT.HHZ. 2018-08-25T16:50:11.20 0.6 undecidable manual P 98 74.4699 96 0.69 38
IV.INTR.HHZ. 2018-08-25T16:50:10.98 0.1 undecidable manual P 283 80.1642 95 -0.4 82
IV.VAGA.HHZ. 2018-08-25T16:50:09.46 0.3 undecidable manual P 227 70.7736 96 -0.47 62
IV.LPEL.HHZ. 2018-08-25T16:50:08.13 0.1 undecidable manual P 291 59.1963 98 -0.04 92
IV.MOCO.HHZ. 2018-08-25T16:50:08.53 0.3 undecidable manual P 155 59.3961 97 0.34 65
IV.RNI2.HHZ. 2018-08-25T16:50:08.48 0.3 undecidable manual P 254 60.2952 97 0.14 67
IV.MELA.HHZ. 2018-08-25T16:50:07.64 0.3 undecidable manual S 126 28.0497 110 -0.16 70
IV.MIDA.HHZ. 2018-08-25T16:50:07.22 0.3 undecidable manual P 245 54.9006 98 -0.29 66
IV.SACR.HHZ. 2018-08-25T16:50:07.02 0.1 positive manual P 194 52.1034 99 -0.07 92
IV.APRC.HHZ. 2018-08-25T16:50:07.38 0.3 undecidable manual P 100 58.0974 98 -0.61 58
IV.BSSO.HHZ. 2018-08-25T16:50:05.60 0.1 positive manual P 212 40.4262 102 0.29 90
IV.FRES.HHZ. 2018-08-25T16:50:05.96 0.6 undecidable manual S 311 20.1687 121 0.07 49
YD.T1411.EHZ. 2018-08-25T16:50:04.50 0.3 undecidable manual S 31 11.7771 139 0.32 72
YD.T1413.EHZ. 2018-08-25T16:50:04.58 0.3 undecidable manual S 91 13.5753 134 0.08 75
YD.T1412.HNZ. 2018-08-25T16:50:03.50 0.3 undecidable manual S 222 10.5783 142 -0.46 68
IV.TRIV.HHZ. 2018-08-25T16:50:03.76 0.3 undecidable manual P 249 26.8509 111 0.45 67
IV.MELA.HHZ. 2018-08-25T16:50:03.23 0.1 negative manual P 126 28.0497 110 -0.24 92
IV.FRES.HHZ. 2018-08-25T16:50:02.55 0.1 undecidable manual P 311 20.1687 121 0.18 96
YD.T1413.EHZ. 2018-08-25T16:50:01.47 0.1 positive manual P 91 13.5753 134 -0.1 97
YD.T1411.EHZ. 2018-08-25T16:50:01.42 0.1 positive manual P 31 11.7771 139 0.04 100
YD.T1412.HNZ. 2018-08-25T16:50:00.90 0.1 positive manual P 222 10.5783 142 -0.36 93
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FRES.HHE. ML:2.1 0.0007239999999999999 1.16 AML other m 2018-08-25T16:50:02.89
IV.FRES.HHN. ML:2.0 0.0006174999999999999 0.32 AML other m 2018-08-25T16:50:03.49
YD.T1412.HNE. ML:2.5 0.002435 0.22 AML other m 2018-08-25T16:50:03.83
YD.T1412.HNN. ML:2.6 0.003705 0.88 AML other m 2018-08-25T16:50:04.68
YD.T1411.HNE. ML:2.8 0.005785 0.22 AML other m 2018-08-25T16:50:04.64
YD.T1411.EHE. ML:2.8 0.00555 0.2 AML other m 2018-08-25T16:50:04.65
YD.T1411.HNN. ML:2.7 0.0042699999999999995 0.26 AML other m 2018-08-25T16:50:04.64
YD.T1411.EHN. ML:2.8 0.0045449999999999996 0.26 AML other m 2018-08-25T16:50:04.64
YD.T1413.EHN. ML:2.7 0.0035250000000000004 0.48 AML other m 2018-08-25T16:50:04.68
IV.MELA.HHN. ML:2.2 0.0008385 0.64 AML other m 2018-08-25T16:50:08.52
IV.MELA.HNN. ML:2.2 0.0008200000000000001 0.64 AML other m 2018-08-25T16:50:08.53
IV.MELA.HNE. ML:2.0 0.0005420000000000001 0.76 AML other m 2018-08-25T16:50:08.73
YD.T1413.EHE. ML:2.3 0.0014700000000000002 1.12 AML other m 2018-08-25T16:50:09.38
IV.MELA.HHE. ML:2.1 0.0005715 0.26 AML other m 2018-08-25T16:50:11.51
IV.TRIV.HHE. ML:1.7 0.0002405 0.76 AML other m 2018-08-25T16:50:12.19
IV.TRIV.HNE. ML:1.7 0.00022 0.36 AML other m 2018-08-25T16:50:14.44
IV.BSSO.HHE. ML:1.2 0.00004885 0.28 AML other m 2018-08-25T16:50:14.59
IV.SACR.HHE. ML:1.9 0.0001865 0.34 AML other m 2018-08-25T16:50:14.73
IV.BSSO.HHN. ML:1.2 0.000044399999999999995 1.48 AML other m 2018-08-25T16:50:15.12
IV.SACR.HHN. ML:1.6 0.000106 0.32 AML other m 2018-08-25T16:50:16.01
IV.LPEL.HHN. ML:2.0 0.00020500000000000002 0.08 AML other m 2018-08-25T16:50:16.62
IV.TRIV.HNN. ML:1.7 0.00021950000000000002 1.1 AML other m 2018-08-25T16:50:17.11
IV.TRIV.HHN. ML:1.7 0.0002205 1.08 AML other m 2018-08-25T16:50:17.12
IV.LPEL.HHE. ML:2.0 0.0002175 0.08 AML other m 2018-08-25T16:50:17.27
IV.RNI2.HNN. ML:2.3 0.000424 0.14 AML other m 2018-08-25T16:50:17.43
IV.RNI2.HHN. ML:2.4 0.0004535 0.14 AML other m 2018-08-25T16:50:17.43
IV.RNI2.HHE. ML:2.1 0.000272 0.16 AML other m 2018-08-25T16:50:17.41
IV.RNI2.HNE. ML:2.1 0.000237 0.16 AML other m 2018-08-25T16:50:17.41
IV.APRC.HHE. ML:2.0 0.00022299999999999997 0.62 AML other m 2018-08-25T16:50:18.46
IV.APRC.HHN. ML:2.2 0.000352 0.32 AML other m 2018-08-25T16:50:19.17
IV.INTR.HHN. ML:2.1 0.000169 0.3 AML other m 2018-08-25T16:50:22.25
IV.SGRT.HHE. ML:2.1 0.00017649999999999998 1.24 AML other m 2018-08-25T16:50:22.04
IV.INTR.HHE. ML:1.9 0.0001013 0.66 AML other m 2018-08-25T16:50:22.40
IV.MOCO.HHN. ML:1.2 0.000034450000000000004 0.52 AML other m 2018-08-25T16:50:23.84
IV.SGRT.HHN. ML:2.0 0.000157 1.18 AML other m 2018-08-25T16:50:24.16
IV.MSAG.HHE. ML:1.8 0.00006720000000000001 0.9 AML other m 2018-08-25T16:50:27.48
IV.MSAG.HHN. ML:2.1 0.00014700000000000002 1.22 AML other m 2018-08-25T16:50:29.84
IV.MOCO.HHE. ML:1.5 0.00006685 1.52 AML other m 2018-08-25T16:50:30.00
IV.SPS2.HHE. ML:2.4 0.000030550000000000004 0.26 AML other m 2018-08-25T16:50:58.86
IV.SPS2.HHN. ML:2.4 0.0000227 0.46 AML other m 2018-08-25T16:51:00.38
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