Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 08-02-2020 and time 00:00:01 (UTC) in region 5 km E Cittareale (RI)

A magnitude ML 0.8 earthquake occured in region: 5 km E Cittareale (RI), on

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

and geographic coordinates (lat, lon) 42.6170, 13.2210 at 14 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Cittareale RI 5 482 482
Amatrice RI 6 2657 3139
Accumoli RI 9 667 3806
Montereale AQ 11 2581 6387
Capitignano AQ 13 665 7052
Borbona RI 14 617 7669
Campotosto AQ 14 542 8211
Posta RI 14 694 8905
Cagnano Amiterno AQ 18 1369 10274
Arquata del Tronto AP 19 1178 11452
Barete AQ 19 737 12189

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NW of L'Aquila (69753 inhabitants)
40 Km W of Teramo (54892 inhabitants)
47 Km E of Terni (111501 inhabitants)
57 Km SE of Foligno (57155 inhabitants)
77 Km W of Montesilvano (53738 inhabitants)
80 Km NE of Guidonia Montecelio (88673 inhabitants)
80 Km NE of Tivoli (56533 inhabitants)
83 Km W of Chieti (51815 inhabitants)
83 Km W of Pescara (121014 inhabitants)
87 Km SE of Perugia (166134 inhabitants)
94 Km E of Viterbo (67173 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
Reviewed
Rev100 		ML 0.8 2020-02-08
00:00:01		 42.6172 13.2207 14 2020-02-08
00:05:11		 Sala Sismica INGV-Roma 76327801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-08 00:00:01 ± 0.14
Latitude 42.6172 ± 0.0072
Longitude 13.2207 ± 0.0061
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76327801

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 829
Semi-minor axis of confidence ellipse (meter) 214
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 343
Circular confidence region, given by single value of horizontal uncertainty (meter) 830.0
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 16
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.29228
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 76327801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-08 00:05:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RSM2.HHZ. 2020-02-08T00:00:43.86 3.0 undecidable manual S -0.81 0
IV.TOLF.HHZ. 2020-02-08T00:00:22.50 3.0 undecidable manual P 0.46 0
IV.MMO1.EHZ. 2020-02-08T00:00:13.04 0.3 undecidable manual S 15 32.4453 99 0.23 72
IV.TERO.HHZ. 2020-02-08T00:00:12.16 0.3 undecidable manual S 89 31.2465 100 -0.34 70
IV.GAVE.EHZ. 2020-02-08T00:00:11.53 0.3 undecidable manual S 287 27.9498 102 -0.08 75
IV.MTRA.EHZ. 2020-02-08T00:00:09.53 0.3 undecidable manual S 43 21.0678 109 -0.32 71
IV.LNSS.HHZ. 2020-02-08T00:00:08.12 0.3 undecidable manual S 264 14.7741 121 -0.21 75
IV.TERO.HHZ. 2020-02-08T00:00:08.03 0.6 undecidable manual P 89 31.2465 100 0.13 49
IV.MMO1.EHZ. 2020-02-08T00:00:08.36 1.0 positive manual P 15 32.4453 99 0.28 24
IV.SMA1.EHZ. 2020-02-08T00:00:07.22 0.3 undecidable manual S 81 9.4794 138 -0.01 77
IV.GAVE.EHZ. 2020-02-08T00:00:07.26 0.1 undecidable manual P 287 27.9498 102 -0.13 99
IV.RM33.EHZ. 2020-02-08T00:00:07.74 3.0 positive manual P 1.25 0
IV.MTRA.EHZ. 2020-02-08T00:00:06.49 0.1 positive manual P 43 21.0678 109 0.12 100
IV.SMA1.EHZ. 2020-02-08T00:00:05.16 0.1 positive manual P 81 9.4794 138 0.3 98
IV.LNSS.HHZ. 2020-02-08T00:00:05.72 0.6 negative manual P 264 14.7741 121 0.23 49
IV.RM33.EHZ. 2020-02-07T00:00:09.90 3.0 undecidable manual S 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:0.9 0.00008165 0.34 AML other m 2020-02-08T00:00:07.40
IV.SMA1.EHE. ML:1.0 0.0000944 0.42 AML other m 2020-02-08T00:00:07.65
IV.LNSS.HHN. ML:1.0 0.0000848 0.34 AML other m 2020-02-08T00:00:08.32
IV.LNSS.HHE. ML:1.2 0.0001205 0.14 AML other m 2020-02-08T00:00:08.37
IV.RM33.EHN. ML:0.6 0.0000354 1.56 AML other m 2020-02-08T00:00:10.04
IV.RM33.EHE. ML:0.7 0.000044899999999999994 1.14 AML other m 2020-02-08T00:00:10.29
IV.MTRA.EHE. ML:0.8 0.000041549999999999994 0.48 AML other m 2020-02-08T00:00:10.93
IV.MTRA.EHN. ML:0.7 0.0000303 1.58 AML other m 2020-02-08T00:00:10.85
IV.GAVE.EHE. ML:0.9 0.00003795 0.44 AML other m 2020-02-08T00:00:11.39
IV.GAVE.EHN. ML:0.7 0.00002385 0.26 AML other m 2020-02-08T00:00:11.76
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download