Earthquake with magnitude of ML 1.6 on date 20-08-2019 and time 03:07:25 (UTC) in region 2 km N Forlì del Sannio (IS)

A magnitude ML 1.6 earthquake occured in region: 2 km N Forlì del Sannio (IS), on

  • 20-08-2019 03:07:25 (UTC)
  • 20-08-2019 05:07:25 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.71, 14.19 at 10 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Forlì del Sannio IS 2 675 675
Rionero Sannitico IS 4 1118 1793
Roccasicura IS 4 550 2343
Acquaviva d'Isernia IS 5 425 2768
San Pietro Avellana IS 9 503 3271
Miranda IS 9 1047 4318
Carovilli IS 9 1359 5677
Cerro al Volturno IS 9 1281 6958
Vastogirardi IS 9 704 7662
Montenero Val Cocchiara IS 10 538 8200
Castel di Sangro AQ 11 6538 14738
Castel San Vincenzo IS 12 516 15254
Fornelli IS 12 1909 17163
Rocchetta a Volturno IS 13 1113 18276
Alfedena AQ 13 864 19140
Scontrone AQ 13 574 19714
Pescolanciano IS 13 855 20569
Pizzone IS 13 329 20898
Pesche IS 14 1661 22559
Isernia IS 14 21842 44401
Colli a Volturno IS 14 1349 45750
Sessano del Molise IS 15 727 46477
Scapoli IS 15 680 47157
Capracotta IS 15 903 48060
Ateleta AQ 16 1181 49241
Castel del Giudice IS 17 346 49587
Macchia d'Isernia IS 17 1035 50622
Barrea AQ 17 726 51348
Pettoranello del Molise IS 17 460 51808
Chiauci IS 17 233 52041
Montaquila IS 17 2456 54497
Pietrabbondante IS 17 759 55256
Roccaraso AQ 18 1627 56883
Carpinone IS 18 1157 58040
Agnone IS 18 5139 63179
Castelverrino IS 19 115 63294
Civitanova del Sannio IS 19 945 64239
Sant'Agapito IS 19 1496 65735
Sant'Angelo del Pesco IS 20 364 66099

Municipalities with at least 50000 inhabitants

An earthquake occurred to
71 Km S of Chieti (51815 inhabitants)
72 Km N of Caserta (76326 inhabitants)
82 Km NW of Benevento (60091 inhabitants)
82 Km N of Aversa (53047 inhabitants)
84 Km S of Pescara (121014 inhabitants)
87 Km N of Acerra (59573 inhabitants)
87 Km N of Giugliano in Campania (122974 inhabitants)
88 Km N of Afragola (65057 inhabitants)
89 Km S of Montesilvano (53738 inhabitants)
90 Km N of Casoria (77642 inhabitants)
90 Km N of Marano di Napoli (59874 inhabitants)
96 Km SE of L'Aquila (69753 inhabitants)
96 Km N of Pozzuoli (81661 inhabitants)
97 Km N of Napoli (974074 inhabitants)
99 Km W of San Severo (53905 inhabitants)
100 Km N of Portici (55274 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.6 2019-08-20
03:07:25
41.71 14.19 10 2019-08-20
03:12:47
Sala Sismica INGV-Roma 71637941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-20 03:07:25 ± 0.11
Latitude 41.71 ± 0.01
Longitude 14.19 ± 0.01
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71637941

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 804
Semi-minor axis of confidence ellipse (meter) 645
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 218
Circular confidence region, given by single value of horizontal uncertainty (meter) 800
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 78
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 20
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
Epicentral distance of station farthest from the epicenter (degree) 0.36602
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 30
Type of magnitude ML
Reference to an origin 71637941
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-20 03:12:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.FAGN.HHZ. 2019-08-20T03:07:51.08 3.0 undecidable manual S -0.07 0
IV.T0110.HHZ. 2019-08-20T03:07:47.49 3.0 undecidable manual S 0.01 0
IV.COLB.HHZ. 2019-08-20T03:07:44.91 3.0 positive manual P 1.59 0
IV.SGG.HHZ. 2019-08-20T03:07:40.07 0.6 undecidable manual S 156 0.3552 50 0.8 39
IV.INTR.HHZ. 2019-08-20T03:07:39.80 0.3 undecidable manual S 325 0.366 50 0.22 69
IV.POFI.HHZ. 2019-08-20T03:07:39.28 0.6 undecidable manual S 271 0.3543 50 0.05 48
IV.BSSO.HHZ. 2019-08-20T03:07:39.93 0.6 undecidable manual S 118 0.3462 50 0.93 37
IV.GIUL.HHZ. 2019-08-20T03:07:38.27 3.0 positive manual P -1.73 0
IV.LPEL.HHZ. 2019-08-20T03:07:38.37 0.6 undecidable manual S 360 0.3345 50 -0.29 46
IV.VAGA.HHZ. 2019-08-20T03:07:37.53 0.6 undecidable manual S 173 0.2986 50 -0.05 49
IV.TRIV.HHZ. 2019-08-20T03:07:37.38 0.6 undecidable manual S 78 0.277 50 0.44 45
IV.T0110.HHZ. 2019-08-20T03:07:37.66 3.0 positive manual P -0.28 0
IV.VVLD.HHZ. 2019-08-20T03:07:34.86 3.0 negative manual P -0.24 0
IV.CERA.HHZ. 2019-08-20T03:07:33.59 0.6 undecidable manual S 228 0.17 117 0.33 47
IV.LPEL.HHZ. 2019-08-20T03:07:33.00 0.6 positive manual P 360 0.3345 50 -0.28 46
IV.SGG.HHZ. 2019-08-20T03:07:33.10 0.6 undecidable manual P 156 0.3552 50 -0.53 43
IV.INTR.HHZ. 2019-08-20T03:07:33.50 1.0 undecidable manual P 325 0.366 50 -0.31 23
IV.POFI.HHZ. 2019-08-20T03:07:33.48 0.1 undecidable manual P 271 0.3543 50 -0.13 95
IV.BSSO.HHZ. 2019-08-20T03:07:33.54 0.6 undecidable manual P 118 0.3462 50 0.06 48
IV.VAGA.HHZ. 2019-08-20T03:07:32.16 0.1 positive manual P 173 0.2986 50 -0.5 88
IV.TRIV.HHZ. 2019-08-20T03:07:32.18 0.3 undecidable manual P 78 0.277 50 -0.11 72
IV.CERA.HHZ. 2019-08-20T03:07:30.13 0.1 positive manual P 228 0.17 117 -0.03 100
IV.RNI2.HHZ. 2019-08-20T03:07:30.08 0.6 undecidable manual S 252 0.027 163 0.68 43
IV.MIDA.HHZ. 2019-08-20T03:07:29.88 0.6 undecidable manual S 144 0.0863 135 -0.74 42
IV.MIDA.HHZ. 2019-08-20T03:07:28.48 0.1 positive manual P 144 0.0863 135 -0.16 99
IV.RNI2.HHZ. 2019-08-20T03:07:28.15 0.1 undecidable manual P 252 0.027 163 0.21 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MIDA.HHE. ML:2.1 0.001655 0.36 AML other m 2019-08-20T03:07:30.42
IV.MIDA.HNN. ML:2 0.00139 0.28 AML other m 2019-08-20T03:07:30.46
IV.MIDA.HHN. ML:2.1 0.00166 0.22 AML other m 2019-08-20T03:07:30.80
IV.MIDA.HNE. ML:2.1 0.001595 0.2 AML other m 2019-08-20T03:07:30.81
IV.CERA.HNN. ML:1.2 0.0001375 0.6 AML other m 2019-08-20T03:07:36.31
IV.CERA.HHN. ML:1.3 0.0001565 0.62 AML other m 2019-08-20T03:07:36.30
IV.CERA.HHE. ML:1.3 0.0001545 0.32 AML other m 2019-08-20T03:07:36.74
IV.CERA.HNE. ML:1.3 0.0001605 0.52 AML other m 2019-08-20T03:07:36.75
IV.VAGA.HNE. ML:1.5 0.000152 0.2 AML other m 2019-08-20T03:07:38.73
IV.VAGA.HHE. ML:1.6 0.0001635 0.18 AML other m 2019-08-20T03:07:38.72
IV.LPEL.HHN. ML:1.9 0.0003125 0.16 AML other m 2019-08-20T03:07:39.50
IV.LPEL.HHE. ML:1.9 0.0002755 1.86 AML other m 2019-08-20T03:07:39.93
IV.TRIV.HHE. ML:1.4 0.0001195 1.64 AML other m 2019-08-20T03:07:40.15
IV.POFI.HHN. ML:1.2 6.14E-5 1.34 AML other m 2019-08-20T03:07:40.04
IV.BSSO.HHE. ML:1 3.96E-5 0.46 AML other m 2019-08-20T03:07:40.85
IV.BSSO.HHN. ML:0.9 2.925E-5 0.56 AML other m 2019-08-20T03:07:40.86
IV.VAGA.HHN. ML:1.7 0.0002005 1.8 AML other m 2019-08-20T03:07:40.04
IV.VAGA.HNN. ML:1.6 0.0001865 1.82 AML other m 2019-08-20T03:07:40.04
IV.POFI.HHE. ML:1 3.845E-5 0.52 AML other m 2019-08-20T03:07:41.47
IV.TRIV.HHN. ML:1.5 0.0001376 0.46 AML other m 2019-08-20T03:07:41.83
IV.INTR.HHE. ML:1.6 0.000121 0.76 AML other m 2019-08-20T03:07:41.62
IV.SGG.HHN. ML:1.4 9.63E-5 0.54 AML other m 2019-08-20T03:07:41.89
IV.VVLD.HHE. ML:1.6 9.315E-5 0.6 AML other m 2019-08-20T03:07:42.80
IV.INTR.HHN. ML:1.9 0.000249 0.46 AML other m 2019-08-20T03:07:42.87
IV.VVLD.HHN. ML:1.4 7.24E-5 0.52 AML other m 2019-08-20T03:07:42.67
IV.SGG.HHE. ML:1.4 8.11E-5 0.6 AML other m 2019-08-20T03:07:44.98
IV.T0110.HHE. ML:1.8 0.000122 1.08 AML other m 2019-08-20T03:07:50.24
IV.T0110.HHN. ML:1.6 7.755E-5 1.34 AML other m 2019-08-20T03:07:53.07
IV.FAGN.HHN. ML:1.7 6.69E-5 1.2 AML other m 2019-08-20T03:07:54.67
IV.FAGN.HHE. ML:1.8 8.175E-5 0.46 AML other m 2019-08-20T03:08:03.53
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