Earthquake with magnitude of ML 1.2 on date 21-08-2018 and time 06:13:30 (Italy) in region 6 km NW Larino (CB)

A magnitude ML 1.2 earthquake occured in region: 6 km NW Larino (CB), on

  • 21-08-2018 04:13:30 (UTC)
  • 21-08-2018 06:13:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.83, 14.86 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Larino CB 6 6793 6793
Guardialfiera CB 6 1065 7858
Montecilfone CB 8 1348 9206
Palata CB 9 1726 10932
Guglionesi CB 10 5321 16253
Montorio nei Frentani CB 10 437 16690
Acquaviva Collecroce CB 10 672 17362
Casacalenda CB 10 2135 19497
Tavenna CB 12 718 20215
Castelmauro CB 12 1505 21720
Ururi CB 13 2693 24413
Provvidenti CB 13 119 24532
Montelongo CB 13 365 24897
Lupara CB 13 505 25402
San Martino in Pensilis CB 13 4793 30195
San Felice del Molise CB 15 634 30829
Morrone del Sannio CB 15 587 31416
Civitacampomarano CB 15 417 31833
Rotello CB 15 1212 33045
Montenero di Bisaccia CB 15 6675 39720
Castelbottaccio CB 15 312 40032
Portocannone CB 16 2551 42583
Bonefro CB 16 1384 43967
San Giacomo degli Schiavoni CB 16 1406 45373
Ripabottoni CB 17 514 45887
Santa Croce di Magliano CB 17 4435 50322
Mafalda CB 17 1211 51533
Castellino del Biferno CB 18 545 52078
Lucito CB 18 696 52774
San Giuliano di Puglia CB 19 1042 53816
Montemitro CB 19 395 54211
Montefalcone nel Sannio CB 19 1556 55767
Campomarino CB 20 7712 63479

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km W of San Severo (53905 inhabitants)
70 Km NW of Foggia (151991 inhabitants)
78 Km N of Benevento (60091 inhabitants)
81 Km SE of Chieti (51815 inhabitants)
88 Km SE of Pescara (121014 inhabitants)
91 Km W of Manfredonia (57279 inhabitants)
95 Km NE of Caserta (76326 inhabitants)
96 Km SE of Montesilvano (53738 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
Rev 1000 Md 1.0
ML 1.2
2018-08-21
04:13:30
41.83 14.86 16 2019-04-24
14:51:18
Bollettino Sismico Italiano INGV 67242251
Rev 100 Md 1.0
ML 1.1
2018-08-21
04:13:30
41.83 14.88 11 2018-08-21
05:58:41
Sala Sismica INGV-Roma 60030001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-21 04:13:30 ± 0.09
Latitude 41.83 ± 0.00
Longitude 14.86 ± 0.00
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 67242251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 345
Semi-minor axis of confidence ellipse (meter) 109
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 44
Circular confidence region, given by single value of horizontal uncertainty (meter) 340
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 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.08544
Epicentral distance of station farthest from the epicenter (degree) 0.23562
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 9
Type of magnitude ML
Reference to an origin 60030001
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-21 05:58:41

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 9
Type of magnitude ML
Reference to an origin 67242251
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-04-04 09:30:02

Md:1

Field Value
Value 1
Uncertainty 0.1
Num. used stations 2
Type of magnitude Md
Reference to an origin 60030001
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-21 05:58:41

Md:1

Field Value
Value 1
Uncertainty 0.2
Num. used stations 2
Type of magnitude Md
Reference to an origin 67242251
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-04-04 09:30:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MELA.HHZ. 2018-08-21T04:13:40.41 0.3 undecidable manual S 123 0.2356 109 0.08 73
IV.FRES.HHZ. 2018-08-21T04:13:39.23 0.3 undecidable manual S 315 0.1996 114 -0.09 74
IV.CIGN.HHZ. 2018-08-21T04:13:38.98 0.6 undecidable manual S 170 0.1826 117 0.12 49
YD.T1413.EHZ. 2018-08-21T04:13:37.42 0.3 undecidable manual S 81 0.1178 132 0.14 74
YD.T1411.EHZ. 2018-08-21T04:13:37.45 0.3 undecidable manual S 23 0.1223 131 0.07 75
IV.MELA.HHZ. 2018-08-21T04:13:36.10 0.1 negative manual P 123 0.2356 109 -0.14 96
YD.T1412.EHZ. 2018-08-21T04:13:36.59 0.3 undecidable manual S 235 0.0854 143 -0.03 76
IV.CIGN.HHZ. 2018-08-21T04:13:35.52 0.6 undecidable manual P 170 0.1826 117 0.13 49
IV.FRES.HHZ. 2018-08-21T04:13:35.88 0.1 undecidable manual P 315 0.1996 114 0.22 95
YD.T1413.EHZ. 2018-08-21T04:13:34.35 0.1 undecidable manual P 81 0.1178 132 -0.13 99
YD.T1411.EHZ. 2018-08-21T04:13:34.44 0.1 positive manual P 23 0.1223 131 -0.1 99
YD.T1412.EHZ. 2018-08-21T04:13:34.00 0.1 positive manual P 235 0.0854 143 -0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
YD.T1412.HNE. ML:1.1 0.000102673295 0.2304 AML other m 2018-08-21T04:13:36.84
YD.T1412.HNN. ML:1.2 0.00016201464 1.8528 AML other m 2018-08-21T04:13:37.93
YD.T1412.EHE. ML:1.1 0.00012043718 0 AML other m 2018-08-21T04:13:37.46
YD.T1411.EHN. ML:1.3 0.000149613505 0.1216 AML other m 2018-08-21T04:13:37.57
YD.T1411.HNN. ML:1.2 0.000141119655 0.112 AML other m 2018-08-21T04:13:37.57
YD.T1411.HNE. ML:1.2 0.000141564525 0.1088 AML other m 2018-08-21T04:13:37.68
YD.T1411.EHE. ML:1.2 0.00013768623 0.1184 AML other m 2018-08-21T04:13:37.69
IV.MELA.HHE. ML:0.6 1.767529E-5 0.08 AML other m 2018-08-21T04:13:40.86
IV.MELA.HNN. ML:1.4 0.000136888685 0.2112 AML other m 2018-08-21T04:13:42.04
YD.T1412.EHZ. Md:1 8 END duration s
YD.T1413.EHZ. Md:1 8 END duration s
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download