Earthquake with magnitude of ML 0.6 on date 08-02-2020 and time 22:23:08 (Italy) in region 5 km S Roccafluvione (AP)

A magnitude ML 0.6 earthquake occured in region: 5 km S Roccafluvione (AP), on

  • 08-02-2020 21:23:08 (UTC)
  • 08-02-2020 22:23:08 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.82, 13.46 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
Roccafluvione AP 5 2010 2010
Acquasanta Terme AP 7 2916 4926
Venarotta AP 8 2066 6992
Valle Castellana TE 9 977 7969
Palmiano AP 9 196 8165
Ascoli Piceno AP 11 49407 57572
Montegallo AP 11 523 58095
Arquata del Tronto AP 14 1178 59273
Folignano AP 14 9241 68514
Montemonaco AP 14 604 69118
Rocca Santa Maria TE 15 537 69655
Comunanza AP 16 3166 72821
Force AP 17 1354 74175
Montefortino FM 17 1178 75353
Civitella del Tronto TE 18 5116 80469
Rotella AP 18 906 81375
Maltignano AP 19 2401 83776
Castignano AP 19 2796 86572
Montefalcone Appennino FM 19 424 86996
Appignano del Tronto AP 19 1785 88781

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km NW of Teramo (54892 inhabitants)
52 Km N of L'Aquila (69753 inhabitants)
64 Km E of Foligno (57155 inhabitants)
66 Km NW of Montesilvano (53738 inhabitants)
72 Km E of Terni (111501 inhabitants)
73 Km NW of Pescara (121014 inhabitants)
78 Km NW of Chieti (51815 inhabitants)
89 Km S of Ancona (100861 inhabitants)
93 Km E of Perugia (166134 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 0.6 2020-02-08
21:23:08
42.82 13.46 11 2020-02-08
21:53:53
Sala Sismica INGV-Roma 76355711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-08 21:23:08 ± 0.04
Latitude 42.82 ± 0.00
Longitude 13.46 ± 0.00
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76355711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 308
Semi-minor axis of confidence ellipse (meter) 146
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 83
Circular confidence region, given by single value of horizontal uncertainty (meter) 310
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 151
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.09
Epicentral distance of station closest to the epicenter (degree) 0.07464
Epicentral distance of station farthest from the epicenter (degree) 0.22033
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 76355711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-08 21:53:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MC2.EHZ. 2020-02-08T21:23:17.62 0.1 undecidable manual S 296 0.2203 50 -0.02 99
IV.TERO.HHZ. 2020-02-08T21:23:17.52 0.3 undecidable manual S 151 0.2194 50 -0.09 73
IV.SMA1.EHZ. 2020-02-08T21:23:17.27 0.1 undecidable manual S 206 0.2059 50 0.06 99
IV.MF5.EHZ. 2020-02-08T21:23:16.10 0.1 undecidable manual S 360 0.1718 119 -0.04 100
IV.SMA1.EHZ. 2020-02-08T21:23:13.56 0.1 undecidable manual P 206 0.2059 50 0.01 100
IV.MTRA.EHZ. 2020-02-08T21:23:13.12 0.1 undecidable manual S 218 0.0746 142 -0.12 100
IV.MC2.EHZ. 2020-02-08T21:23:13.75 0.1 undecidable manual P 296 0.2203 50 -0.04 99
IV.TERO.HHZ. 2020-02-08T21:23:13.79 0.3 undecidable manual P 151 0.2194 50 0.01 75
IV.MF5.EHZ. 2020-02-08T21:23:12.99 0.1 undecidable manual P 360 0.1718 119 0.06 99
IV.MTRA.EHZ. 2020-02-08T21:23:11.40 0.1 undecidable manual P 218 0.0746 142 0.14 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TERO.HHN. ML:0.6 2.445E-5 0.08 AML other m 2020-02-08T21:23:18.26
IV.TERO.HHE. ML:0.5 2.11E-5 0.28 AML other m 2020-02-08T21:23:18.29
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