INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 0.8 on date 17-02-2019 and time 09:16:50 (Italy) in region 2 km E Cittareale (RI)

A magnitude ML 0.8 earthquake occured in region: 2 km E Cittareale (RI), on

  • 17-02-2019 08:16:50 (UTC)
  • 17-02-2019 09:16:50 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.63, 13.19 at 9 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
Cittareale RI 2 482 482
Amatrice RI 9 2657 3139
Accumoli RI 9 667 3806
Montereale AQ 12 2581 6387
Borbona RI 13 617 7004
Posta RI 13 694 7698
Capitignano AQ 15 665 8363
Campotosto AQ 17 542 8905
Cascia PG 18 3217 12122
Cagnano Amiterno AQ 19 1369 13491
Arquata del Tronto AP 19 1178 14669
Monteleone di Spoleto PG 19 599 15268
Leonessa RI 19 2435 17703

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km NW of L'Aquila (69753 inhabitants)
43 Km W of Teramo (54892 inhabitants)
45 Km E of Terni (111501 inhabitants)
54 Km SE of Foligno (57155 inhabitants)
79 Km NE of Guidonia Montecelio (88673 inhabitants)
80 Km W of Montesilvano (53738 inhabitants)
80 Km NE of Tivoli (56533 inhabitants)
84 Km SE of Perugia (166134 inhabitants)
86 Km W of Pescara (121014 inhabitants)
86 Km W of Chieti (51815 inhabitants)
92 Km E of Viterbo (67173 inhabitants)
100 Km NE of Roma (2864731 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 0.8 2019-02-17
08:16:50
42.63 13.19 9 2019-02-17
08:21:52
Sala Sismica INGV-Roma 65620341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-17 08:16:50 ± 0.11
Latitude 42.63 ± 0.00
Longitude 13.19 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 65620341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 486
Semi-minor axis of confidence ellipse (meter) 397
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 85
Circular confidence region, given by single value of horizontal uncertainty (meter) 490
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 97
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.41729
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 65620341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-17 08:21:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PE3.EHZ. 2019-02-17T08:17:24.79 3.0 undecidable manual Sn 0.01 0
IV.FDMO.HHZ. 2019-02-17T08:17:06.27 0.3 undecidable manual S 350 0.4173 50 0.13 93
IV.LIK.EHZ.01 2019-02-17T08:17:03.32 3.0 negative manual P 0 0
IV.NRCA.HHZ. 2019-02-17T08:16:59.64 0.3 undecidable manual S 346 0.214 111 -0.1 97
IV.FDMO.HHZ. 2019-02-17T08:16:59.53 1.0 undecidable manual P 350 0.4173 50 -0.17 31
IV.RM33.EHZ. 2019-02-17T08:16:56.26 0.6 undecidable manual S 170 0.1187 125 -0.2 64
IV.LNSS.HHZ. 2019-02-17T08:16:56.37 0.3 undecidable manual S 258 0.1097 127 0.19 97
IV.SMA1.EHZ. 2019-02-17T08:16:56.37 0.6 undecidable manual S 87 0.1097 127 0.17 65
IV.NRCA.HHZ. 2019-02-17T08:16:55.68 0.6 negative manual P 346 0.214 111 -0.33 62
IV.SMA1.EHZ. 2019-02-17T08:16:54.18 0.6 positive manual P 87 0.1097 127 0.22 64
IV.RM33.EHZ. 2019-02-17T08:16:53.92 0.6 positive manual P 170 0.1187 125 -0.19 65
IV.LNSS.HHZ. 2019-02-17T08:16:53.99 0.3 undecidable manual P 258 0.1097 127 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:0.6 4.87E-5 0.22 AML other m 2019-02-17T08:16:56.98
IV.LNSS.HHN. ML:0.7 5.48E-5 1.82 AML other m 2019-02-17T08:16:56.03
IV.SMA1.EHE. ML:0.9 9.88E-5 1.6 AML other m 2019-02-17T08:16:57.81
IV.RM33.EHE. ML:0.7 6.055E-5 0.32 AML other m 2019-02-17T08:16:57.12
IV.LNSS.HHE. ML:0.6 4.825E-5 0.6 AML other m 2019-02-17T08:16:57.07
IV.RM33.EHN. ML:0.7 5.995E-5 0.52 AML other m 2019-02-17T08:16:57.56
IV.NRCA.HHN. ML:1 5.835E-5 0.78 AML other m 2019-02-17T08:16:59.82
IV.NRCA.HHE. ML:1.2 8.77E-5 0.14 AML other m 2019-02-17T08:17:00.07
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