Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 21-08-2019 and time 15:17:06 (Italy) in region 1 km SW San Biase (CB)

A magnitude ML 1.5 earthquake occured in region: 1 km SW San Biase (CB), on

  • 21-08-2019 13:17:06 (UTC)
  • 21-08-2019 15:17:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.7070, 14.5840 at 22 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
San Biase CB 1 189 189
Sant'Angelo Limosano CB 2 352 541
Limosano CB 5 768 1309
Fossalto CB 5 1345 2654
Pietracupa CB 6 215 2869
Salcito CB 8 683 3552
Torella del Sannio CB 9 795 4347
Trivento CB 9 4730 9077
Lucito CB 9 696 9773
Petrella Tifernina CB 9 1170 10943
Castropignano CB 10 947 11890
Montagano CB 10 1086 12976
Bagnoli del Trigno IS 10 735 13711
Molise CB 11 167 13878
Castelbottaccio CB 12 312 14190
Duronia CB 12 405 14595
Civitacampomarano CB 12 417 15012
Castellino del Biferno CB 12 545 15557
Ripalimosani CB 12 3114 18671
Oratino CB 13 1641 20312
Lupara CB 14 505 20817
Castelguidone CH 14 382 21199
Roccavivara CB 14 815 22014
Casalciprano CB 15 564 22578
Schiavi di Abruzzo CH 15 860 23438
Matrice CB 15 1115 24553
San Giovanni Lipioni CH 15 185 24738
Civitanova del Sannio IS 15 945 25683
Frosolone IS 16 3170 28853
Morrone del Sannio CB 16 587 29440
Poggio Sannita IS 16 702 30142
Chiauci IS 17 233 30375
Pietrabbondante IS 17 759 31134
Busso CB 17 1273 32407
Castelverrino IS 17 115 32522
Sant'Elena Sannita IS 17 275 32797
Campolieto CB 17 839 33636
Castelmauro CB 17 1505 35141
Campobasso CB 18 49431 84572
Montefalcone nel Sannio CB 18 1556 86128
Torrebruna CH 18 825 86953
Celenza sul Trigno CH 19 915 87868
Ripabottoni CB 19 514 88382
Belmonte del Sannio IS 19 768 89150
San Giovanni in Galdo CB 19 580 89730
Spinete CB 20 1320 91050
Provvidenti CB 20 119 91169
Baranello CB 20 2673 93842

Municipalities with at least 50000 inhabitants

An earthquake occurred to
66 Km N of Benevento (60091 inhabitants)
66 Km W of San Severo (53905 inhabitants)
73 Km N of Caserta (76326 inhabitants)
80 Km SE of Chieti (51815 inhabitants)
84 Km W of Foggia (151991 inhabitants)
86 Km N of Acerra (59573 inhabitants)
87 Km NE of Aversa (53047 inhabitants)
90 Km SE of Pescara (121014 inhabitants)
90 Km N of Avellino (54857 inhabitants)
90 Km N of Afragola (65057 inhabitants)
92 Km NE of Giugliano in Campania (122974 inhabitants)
92 Km N of Casoria (77642 inhabitants)
96 Km NE of Marano di Napoli (59874 inhabitants)
97 Km SE of Montesilvano (53738 inhabitants)
100 Km N of Portici (55274 inhabitants)
100 Km N of Napoli (974074 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 1.5 2019-08-21
13:17:06		 41.7068 14.584 22 2019-11-13
14:30:59		 Bollettino Sismico Italiano INGV 71813341
Reviewed
Rev100 		ML 1.5 2019-08-21
13:17:06		 41.7217 14.5783 24 2019-08-21
13:30:35		 Sala Sismica INGV-Roma 71678011
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-21 13:17:06 ± 0.1
Latitude 41.7068 ± 0.0036
Longitude 14.5840 ± 0.0048
Depth (km) 22 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 71813341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 410
Semi-minor axis of confidence ellipse (meter) 117
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 138
Circular confidence region, given by single value of horizontal uncertainty (meter) 410.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 50
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.58996
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 71813341
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-08-26 07:25:30

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 71678011
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-21 13:30:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSNT.HHZ. 2019-08-21T13:18:38.32 3.0 undecidable manual Sg 4.6 0
IV.SPS2.HHZ. 2019-08-21T13:18:29.99 3.0 undecidable manual Sg 1.4 0
IV.GAVE.EHZ. 2019-08-21T13:17:56.60 3.0 undecidable manual Sn -2.66 0
IV.TDS.HHZ. 2019-08-21T13:17:49.96 3.0 negative manual Pg 1.44 0
IX.STN3.HHZ.02 2019-08-21T13:17:34.80 3.0 undecidable manual Pg 0.22 0
IV.INTR.HHE. 2019-08-21T13:17:27.11 0.6 undecidable manual S 301 65.49 102 0.16 45
IV.SGRT.HHZ. 2019-08-21T13:17:24.15 3.0 positive manual Pg -1.32 0
IV.LPEL.HHZ. 2019-08-21T13:17:22.84 0.6 undecidable manual S 319 50.2164 106 -0.13 68
IV.VAGA.HHZ. 2019-08-21T13:17:21.77 1.0 undecidable manual S 222 43.4232 109 0.51 21
IV.MELA.HHZ. 2019-08-21T13:17:21.69 0.6 undecidable manual S 90 44.9217 108 0.05 47
IV.RNI2.HHZ. 2019-08-21T13:17:19.73 0.6 undecidable manual S 270 35.742 114 0.38 45
IV.SGG.HHE. 2019-08-21T13:17:19.98 0.3 undecidable manual S 206 39.3273 112 -0.26 68
IV.GATE.HHE. 2019-08-21T13:17:19.00 1.0 undecidable manual S 128 34.5432 115 -0.06 24
IV.SACR.HNN. 2019-08-21T13:17:19.08 0.6 undecidable manual S 164 35.742 114 -0.28 46
IV.INTR.HHE. 2019-08-21T13:17:18.49 1.0 undecidable manual P 301 65.49 102 0.1 23
IV.FRES.HHZ. 2019-08-21T13:17:17.68 0.6 undecidable manual S 13 30.4473 119 -0.39 45
IV.MIDA.HHZ. 2019-08-21T13:17:17.47 0.3 undecidable manual S 255 28.2495 121 -0.11 71
IT.PLTA.HNZ. 2019-08-21T13:17:16.59 0.3 undecidable manual S 40 26.1516 123 -0.51 66
IV.LPEL.HHZ. 2019-08-21T13:17:16.45 0.1 undecidable manual P 319 50.2164 106 0.36 88
IV.CERA.HNN. 2019-08-21T13:17:15.56 0.6 undecidable manual P 256 48.4182 107 -0.28 66
IV.BSSO.HHZ. 2019-08-21T13:17:15.65 0.3 undecidable manual S 177 17.871 136 0.27 70
IV.MELA.HHZ. 2019-08-21T13:17:15.38 0.1 undecidable manual P 90 44.9217 108 0.05 94
IV.GATE.HHE. 2019-08-21T13:17:14.19 0.6 undecidable manual P 128 34.5432 115 0.36 45
IV.VAGA.HHZ. 2019-08-21T13:17:14.91 0.3 undecidable manual P 222 43.4232 109 -0.2 91
IV.RNI2.HHZ. 2019-08-21T13:17:14.11 0.1 positive manual P 270 35.742 114 0.11 95
IV.SGG.HHE. 2019-08-21T13:17:14.42 0.1 undecidable manual P 206 39.3273 112 -0.09 94
IV.SACR.HNN. 2019-08-21T13:17:13.92 0.1 undecidable manual P 164 35.742 114 -0.08 95
IV.TRIV.HHZ. 2019-08-21T13:17:13.98 0.3 undecidable manual S 337 7.1928 160 0.14 73
IV.FRES.HHZ. 2019-08-21T13:17:13.39 0.1 undecidable manual P 13 30.4473 119 0.13 95
IV.MIDA.HHZ. 2019-08-21T13:17:12.80 0.1 positive manual P 255 28.2495 121 -0.18 94
IT.PLTA.HNZ. 2019-08-21T13:17:12.89 0.6 undecidable manual P 40 26.1516 123 0.19 47
IV.BSSO.HHZ. 2019-08-21T13:17:11.88 0.1 undecidable manual P 177 17.871 136 0.17 96
IV.TRIV.HHZ. 2019-08-21T13:17:10.87 0.1 positive manual P 337 7.1928 160 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BSSO.HHE. ML:1.2 0.00008565000000000001 1.3 AML other m 2019-08-21T13:17:15.97
IV.BSSO.HNE. ML:1.6 0.0001965 0.46 AML other m 2019-08-21T13:17:17.51
IV.MIDA.HHE. ML:1.4 0.0001115 1.58 AML other m 2019-08-21T13:17:18.06
IV.BSSO.HNN. ML:1.6 0.00023899999999999998 0.34 AML other m 2019-08-21T13:17:18.41
IV.BSSO.HHN. ML:1.3 0.00010839999999999999 0.34 AML other m 2019-08-21T13:17:18.41
IV.MIDA.HHN. ML:1.4 0.00009395000000000001 0.42 AML other m 2019-08-21T13:17:19.04
IV.FRES.HHE. ML:1.6 0.000162 0.72 AML other m 2019-08-21T13:17:20.63
IV.RNI2.HHN. ML:1.5 0.00010775000000000002 0.24 AML other m 2019-08-21T13:17:20.24
IV.RNI2.HHE. ML:1.5 0.00009915 0.6 AML other m 2019-08-21T13:17:20.87
IV.MELA.HHN. ML:1.8 0.00017749999999999998 0.32 AML other m 2019-08-21T13:17:22.76
IV.MELA.HHE. ML:1.6 0.00011949999999999999 1.12 AML other m 2019-08-21T13:17:22.42
IV.LPEL.HHN. ML:1.2 0.0000421 0.14 AML other m 2019-08-21T13:17:24.77
IV.LPEL.HHE. ML:1.4 0.0000543 1.32 AML other m 2019-08-21T13:17:25.85
IV.FRES.HHN. ML:1.6 0.00016849999999999998 1.18 AML other m 2019-08-21T13:17:26.28
IV.VAGA.HHE. ML:1.2 0.0000413 0.62 AML other m 2019-08-21T13:17:26.46
IV.VAGA.HHN. ML:1.4 0.0000753 0.94 AML other m 2019-08-21T13:17:28.82
IV.SGRT.HHE. ML:1.9 0.00007755 1.74 AML other m 2019-08-21T13:17:37.03
IV.SGRT.HHN. ML:1.8 0.00006485 1.62 AML other m 2019-08-21T13:17:37.86
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