Earthquake with magnitude of ML 1.0 on date 09-08-2019 and time 20:59:04 (Italy) in region 1 km S Forlì del Sannio (IS)

A magnitude ML 1.0 earthquake occured in region: 1 km S Forlì del Sannio (IS), on

  • 09-08-2019 18:59:04 (UTC)
  • 09-08-2019 20:59:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.68, 14.18 at 11 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 1 675 675
Acquaviva d'Isernia IS 3 425 1100
Rionero Sannitico IS 4 1118 2218
Roccasicura IS 5 550 2768
Cerro al Volturno IS 7 1281 4049
Miranda IS 7 1047 5096
Fornelli IS 9 1909 7005
Montenero Val Cocchiara IS 10 538 7543
Castel San Vincenzo IS 10 516 8059
Rocchetta a Volturno IS 10 1113 9172
Carovilli IS 10 1359 10531
Colli a Volturno IS 11 1349 11880
Isernia IS 11 21842 33722
San Pietro Avellana IS 12 503 34225
Pesche IS 12 1661 35886
Pizzone IS 12 329 36215
Vastogirardi IS 12 704 36919
Scapoli IS 13 680 37599
Castel di Sangro AQ 13 6538 44137
Alfedena AQ 13 864 45001
Pescolanciano IS 13 855 45856
Scontrone AQ 13 574 46430
Macchia d'Isernia IS 14 1035 47465
Sessano del Molise IS 14 727 48192
Montaquila IS 14 2456 50648
Pettoranello del Molise IS 15 460 51108
Carpinone IS 16 1157 52265
Sant'Agapito IS 16 1496 53761
Chiauci IS 17 233 53994
Barrea AQ 18 726 54720
Monteroduni IS 18 2264 56984
Capracotta IS 18 903 57887
Filignano IS 19 648 58535
Pietrabbondante IS 19 759 59294
Civitanova del Sannio IS 19 945 60239
Longano IS 19 690 60929
Ateleta AQ 19 1181 62110
Castel del Giudice IS 20 346 62456
Castelpetroso IS 20 1680 64136
Roccaraso AQ 20 1627 65763

Municipalities with at least 50000 inhabitants

An earthquake occurred to
69 Km N of Caserta (76326 inhabitants)
74 Km S of Chieti (51815 inhabitants)
79 Km N of Aversa (53047 inhabitants)
80 Km NW of Benevento (60091 inhabitants)
84 Km N of Acerra (59573 inhabitants)
84 Km N of Giugliano in Campania (122974 inhabitants)
85 Km N of Afragola (65057 inhabitants)
87 Km S of Pescara (121014 inhabitants)
87 Km N of Casoria (77642 inhabitants)
87 Km N of Marano di Napoli (59874 inhabitants)
92 Km S of Montesilvano (53738 inhabitants)
93 Km N of Pozzuoli (81661 inhabitants)
94 Km N of Napoli (974074 inhabitants)
97 Km N of Portici (55274 inhabitants)
98 Km SE of L'Aquila (69753 inhabitants)
98 Km N of Ercolano (53709 inhabitants)
100 Km NW of Avellino (54857 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 1.0 2019-08-09
18:59:04
41.69 14.18 11 2019-08-09
19:51:28
Sala Sismica INGV-Roma 71315411
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-09 18:59:04 ± 0.14
Latitude 41.69 ± 0.00
Longitude 14.18 ± 0.00
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71315411

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 424
Semi-minor axis of confidence ellipse (meter) 311
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 3
Circular confidence region, given by single value of horizontal uncertainty (meter) 420
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 175
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.08
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.14839
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 3
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 71315411
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-09 19:51:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.LRP.EHZ. 2019-08-09T18:59:25.00 3.0 undecidable manual S 0.72 0
IV.VIVA.HHZ. 2019-08-09T18:59:25.36 3.0 undecidable manual P 0.34 0
IT.MCLF.HNZ. 2019-08-09T18:59:12.16 3.0 positive manual P -0.1 0
IV.CERA.HHZ. 2019-08-09T18:59:11.73 0.3 undecidable manual S 234 0.1484 123 0.06 73
IV.MIDA.HHZ. 2019-08-09T18:59:09.41 0.6 undecidable manual S 128 0.071 144 -0.06 49
IV.CERA.HHZ. 2019-08-09T18:59:08.71 0.1 undecidable manual P 234 0.1484 123 -0.08 96
IV.RNI2.HHZ. 2019-08-09T18:59:08.70 0.1 undecidable manual S 313 0.027 165 -0.01 100
IV.MIDA.HHZ. 2019-08-09T18:59:07.57 0.1 undecidable manual P 128 0.071 144 0.05 98
IV.RNI2.HHZ. 2019-08-09T18:59:07.10 0.1 undecidable manual P 313 0.027 165 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RNI2.HNN. ML:1.2 0.0002465 0.16 AML other m 2019-08-09T18:59:08.89
IV.RNI2.HHN. ML:1.2 0.000261 0.16 AML other m 2019-08-09T18:59:08.89
IV.RNI2.HNE. ML:1 0.0001715 0.86 AML other m 2019-08-09T18:59:09.54
IV.RNI2.HHE. ML:1 0.000176 0.16 AML other m 2019-08-09T18:59:10.41
IV.MIDA.HHE. ML:0.4 3.34E-5 0.58 AML other m 2019-08-09T18:59:10.94
IV.MIDA.HHN. ML:0.5 4.685E-5 0.42 AML other m 2019-08-09T18:59:11.64
IV.VIVA.HHE. ML:3 0.000701 0.6 AML other m 2019-08-09T18:59:28.41
IV.VIVA.HHN. ML:3 0.0007615 1.86 AML other m 2019-08-09T19:00:00.05
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