Earthquake with magnitude of ML 1.3 on date 20-08-2019 and time 06:06:38 (Italy) in region 2 km W Roccasicura (IS)

A magnitude ML 1.3 earthquake occured in region: 2 km W Roccasicura (IS), on

  • 20-08-2019 04:06:38 (UTC)
  • 20-08-2019 06:06:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.71, 14.21 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
Roccasicura IS 2 550 550
Forlì del Sannio IS 3 675 1225
Rionero Sannitico IS 6 1118 2343
Acquaviva d'Isernia IS 6 425 2768
Carovilli IS 7 1359 4127
Miranda IS 8 1047 5174
Vastogirardi IS 9 704 5878
San Pietro Avellana IS 9 503 6381
Cerro al Volturno IS 11 1281 7662
Pescolanciano IS 11 855 8517
Montenero Val Cocchiara IS 12 538 9055
Castel di Sangro AQ 12 6538 15593
Pesche IS 12 1661 17254
Fornelli IS 12 1909 19163
Sessano del Molise IS 13 727 19890
Isernia IS 13 21842 41732
Castel San Vincenzo IS 13 516 42248
Rocchetta a Volturno IS 14 1113 43361
Alfedena AQ 15 864 44225
Colli a Volturno IS 15 1349 45574
Scontrone AQ 15 574 46148
Pizzone IS 15 329 46477
Capracotta IS 15 903 47380
Chiauci IS 15 233 47613
Pietrabbondante IS 16 759 48372
Pettoranello del Molise IS 16 460 48832
Carpinone IS 16 1157 49989
Scapoli IS 16 680 50669
Macchia d'Isernia IS 16 1035 51704
Ateleta AQ 17 1181 52885
Castel del Giudice IS 17 346 53231
Civitanova del Sannio IS 17 945 54176
Castelverrino IS 17 115 54291
Agnone IS 17 5139 59430
Montaquila IS 17 2456 61886
Sant'Agapito IS 18 1496 63382
Poggio Sannita IS 19 702 64084
Barrea AQ 19 726 64810
Roccaraso AQ 19 1627 66437
Castelpetroso IS 20 1680 68117
Sant'Angelo del Pesco IS 20 364 68481

Municipalities with at least 50000 inhabitants

An earthquake occurred to
71 Km N of Caserta (76326 inhabitants)
72 Km S of Chieti (51815 inhabitants)
80 Km NW of Benevento (60091 inhabitants)
82 Km N of Aversa (53047 inhabitants)
84 Km S of Pescara (121014 inhabitants)
86 Km N of Acerra (59573 inhabitants)
87 Km N of Giugliano in Campania (122974 inhabitants)
88 Km N of Afragola (65057 inhabitants)
89 Km N of Casoria (77642 inhabitants)
90 Km N of Marano di Napoli (59874 inhabitants)
90 Km S of Montesilvano (53738 inhabitants)
96 Km N of Pozzuoli (81661 inhabitants)
96 Km N of Napoli (974074 inhabitants)
97 Km W of San Severo (53905 inhabitants)
98 Km SE of L'Aquila (69753 inhabitants)
99 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 1.3 2019-08-20
04:06:38
41.71 14.21 10 2019-08-20
04:10:40
Sala Sismica INGV-Roma 71638421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-20 04:06:38 ± 0.11
Latitude 41.71 ± 0.01
Longitude 14.21 ± 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 71638421

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 937
Semi-minor axis of confidence ellipse (meter) 618
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 249
Circular confidence region, given by single value of horizontal uncertainty (meter) 940
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 15
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.37861
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.4
Num. used stations 18
Type of magnitude ML
Reference to an origin 71638421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-20 04:10:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.FAGN.HHZ. 2019-08-20T04:07:03.70 3.0 undecidable manual S -0.05 0
IV.INTR.HHZ. 2019-08-20T04:06:52.45 0.6 undecidable manual S 323 0.3786 50 0.13 47
IV.LPEL.HHZ. 2019-08-20T04:06:51.10 0.6 undecidable manual S 357 0.3399 50 -0.06 48
IV.VAGA.HHZ. 2019-08-20T04:06:50.24 0.6 undecidable manual S 176 0.2923 50 0.49 44
IV.VVLD.HHZ. 2019-08-20T04:06:47.49 3.0 undecidable manual P -0.23 0
IV.INTR.HHZ. 2019-08-20T04:06:46.10 1.0 negative manual P 323 0.3786 50 -0.32 22
IV.TRIV.HHZ. 2019-08-20T04:06:45.06 1.0 negative manual P 77 0.2617 50 0.65 21
IV.CERA.HHZ. 2019-08-20T04:06:45.97 0.6 undecidable manual S 232 0.1799 116 -0.12 49
IV.LPEL.HHZ. 2019-08-20T04:06:45.42 0.6 positive manual P 357 0.3399 50 -0.33 45
IV.VAGA.HHZ. 2019-08-20T04:06:44.69 0.3 negative manual P 176 0.2923 50 -0.25 70
IV.MIDA.HHZ. 2019-08-20T04:06:42.39 0.6 undecidable manual S 153 0.0737 140 -0.44 46
IV.CERA.HHZ. 2019-08-20T04:06:42.68 0.1 positive manual P 232 0.1799 116 -0.15 97
IV.RNI2.HHZ. 2019-08-20T04:06:42.59 0.6 undecidable manual S 265 0.0423 155 0.42 47
IV.MIDA.HHZ. 2019-08-20T04:06:41.03 0.1 positive manual P 153 0.0737 140 0.09 100
IV.RNI2.HHZ. 2019-08-20T04:06:40.69 0.1 undecidable manual P 265 0.0423 155 0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RNI2.HNE. ML:2.1 0.00215 0.36 AML other m 2019-08-20T04:06:42.74
IV.RNI2.HHE. ML:2.1 0.00237 0.38 AML other m 2019-08-20T04:06:42.73
IV.RNI2.HHN. ML:2.2 0.002415 0.4 AML other m 2019-08-20T04:06:42.77
IV.RNI2.HNN. ML:2.1 0.00219 0.38 AML other m 2019-08-20T04:06:42.78
IV.MIDA.HHE. ML:1.5 0.0004515 1.7 AML other m 2019-08-20T04:06:42.98
IV.MIDA.HHN. ML:1.6 0.0005165 0.2 AML other m 2019-08-20T04:06:43.33
IV.CERA.HHN. ML:0.9 5.53E-5 0.5 AML other m 2019-08-20T04:06:49.12
IV.CERA.HHE. ML:0.9 5.315E-5 1.32 AML other m 2019-08-20T04:06:49.20
IV.VAGA.HHE. ML:1 5.07E-5 0.18 AML other m 2019-08-20T04:06:51.26
IV.LPEL.HHN. ML:1.3 7.19E-5 1.84 AML other m 2019-08-20T04:06:52.93
IV.LPEL.HHE. ML:1.3 8.065E-5 0.84 AML other m 2019-08-20T04:06:52.43
IV.VAGA.HHN. ML:1.2 7.13E-5 0.22 AML other m 2019-08-20T04:06:53.58
IV.TRIV.HHE. ML:0.9 4.21E-5 0.44 AML other m 2019-08-20T04:06:53.78
IV.INTR.HHN. ML:1.4 8.745E-5 0.44 AML other m 2019-08-20T04:06:53.68
IV.TRIV.HHN. ML:1 4.54E-5 0.5 AML other m 2019-08-20T04:06:54.11
IV.INTR.HHE. ML:1.1 4.075E-5 0.2 AML other m 2019-08-20T04:06:54.13
IV.VVLD.HHE. ML:1 2.59E-5 0.54 AML other m 2019-08-20T04:06:55.29
IV.VVLD.HHN. ML:1.1 2.87E-5 1.08 AML other m 2019-08-20T04:06:55.72
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