INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.0 on date 19-02-2019 and time 19:32:51 (Italy) in region 4 km SW Cittareale (RI)

A magnitude ML 1.0 earthquake occured in region: 4 km SW Cittareale (RI), on

  • 19-02-2019 18:32:51 (UTC)
  • 19-02-2019 19:32:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.59, 13.13 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
Cittareale RI 4 482 482
Posta RI 8 694 1176
Borbona RI 8 617 1793
Montereale AQ 12 2581 4374
Leonessa RI 14 2435 6809
Amatrice RI 14 2657 9466
Accumoli RI 16 667 10133
Capitignano AQ 16 665 10798
Monteleone di Spoleto PG 16 599 11397
Micigliano RI 16 127 11524
Cagnano Amiterno AQ 16 1369 12893
Cascia PG 17 3217 16110
Antrodoco RI 19 2588 18698
Barete AQ 20 737 19435

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km NW of L'Aquila (69753 inhabitants)
40 Km E of Terni (111501 inhabitants)
48 Km W of Teramo (54892 inhabitants)
54 Km SE of Foligno (57155 inhabitants)
73 Km NE of Guidonia Montecelio (88673 inhabitants)
74 Km NE of Tivoli (56533 inhabitants)
84 Km SE of Perugia (166134 inhabitants)
84 Km W of Montesilvano (53738 inhabitants)
86 Km E of Viterbo (67173 inhabitants)
89 Km W of Chieti (51815 inhabitants)
90 Km W of Pescara (121014 inhabitants)
94 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 1.0 2019-02-19
18:32:51
42.59 13.13 11 2019-02-19
18:38:23
Sala Sismica INGV-Roma 65706601
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-19 18:32:51 ± 0.09
Latitude 42.59 ± 0.01
Longitude 13.13 ± 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 65706601

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 671
Semi-minor axis of confidence ellipse (meter) 356
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 196
Circular confidence region, given by single value of horizontal uncertainty (meter) 670
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 142
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.44876
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 65706601
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-19 18:38:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SPS2.HHZ. 2019-02-19T18:34:33.22 3.0 undecidable manual Sn -0.01 0
IV.EUCT.HNZ. 2019-02-19T18:34:31.30 3.0 undecidable manual Sg 6.38 0
IV.CAVE.HHZ. 2019-02-19T18:33:59.75 3.0 undecidable manual Sn -2.54 0
CR.ZAG.BHZ. 2019-02-19T18:33:55.44 3.0 undecidable manual Pn 7.12 0
IV.GATE.HHZ. 2019-02-19T18:33:52.22 3.0 undecidable manual Sg 10.56 0
IT.VNF1.HGZ. 2019-02-19T18:33:26.81 3.0 undecidable manual Sg -0.35 0
IV.FOSV.EHZ. 2019-02-19T18:33:22.51 3.0 undecidable manual S 0.66 0
IV.FDMO.HHZ. 2019-02-19T18:33:07.66 0.3 undecidable manual S 356 0.4488 50 0.13 69
IV.ARVD.HHZ. 2019-02-19T18:33:04.11 3.0 undecidable manual P -1.5 0
IV.MF5.EHZ. 2019-02-19T18:33:02.81 3.0 undecidable manual P 0.34 0
IV.NRCA.HHZ. 2019-02-19T18:33:01.33 0.3 undecidable manual S 358 0.2455 50 -0.17 72
IV.FDMO.HHZ. 2019-02-19T18:33:00.78 0.3 undecidable manual P 356 0.4488 50 -0.05 70
IV.LIK.EHZ.01 2019-02-19T18:32:58.71 3.0 negative manual P -2.07 0
IV.SMA1.EHE. 2019-02-19T18:32:58.77 0.3 undecidable manual S 74 0.1583 121 -0.04 75
IV.NRCA.HHZ. 2019-02-19T18:32:57.31 0.1 negative manual P 358 0.2455 50 -0.03 98
IV.LNSS.HHZ. 2019-02-19T18:32:56.09 0.1 undecidable manual S 283 0.0665 145 -0.1 100
IV.RM33.EHZ. 2019-02-19T18:32:56.93 0.1 undecidable manual S 141 0.1016 134 -0.14 99
IV.SMA1.EHE. 2019-02-19T18:32:55.97 0.3 undecidable manual P 74 0.1583 121 0.17 73
IV.LNSS.HHZ. 2019-02-19T18:32:54.45 0.1 negative manual P 283 0.0665 145 0.17 99
IV.RM33.EHZ. 2019-02-19T18:32:54.92 0.3 negative manual P 141 0.1016 134 0.13 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHN. ML:1 0.000138 0.14 AML other m 2019-02-19T18:32:56.18
IV.LNSS.HHE. ML:1.1 0.000168 0.12 AML other m 2019-02-19T18:32:56.57
IV.RM33.EHN. ML:0.9 8.845E-5 0.28 AML other m 2019-02-19T18:32:57.13
IV.RM33.EHE. ML:0.6 4.65E-5 0.94 AML other m 2019-02-19T18:32:57.32
IV.NRCA.HHN. ML:1 6.25E-5 0.98 AML other m 2019-02-19T18:33:01.42
IV.NRCA.HHE. ML:1.4 0.000134 1.88 AML other m 2019-02-19T18:33:02.98
IV.FOSV.EHE. ML:1.3 2.65E-5 1.26 AML other m 2019-02-19T18:33:33.87
IV.FOSV.EHN. ML:1.4 3.04E-5 1.24 AML other m 2019-02-19T18:33:44.15
IV.CAVE.HHE. ML:3.7 0.0005705 0.1 AML other m 2019-02-19T18:34:08.93
IV.CAVE.HHN. ML:3.6 0.000495 1.74 AML other m 2019-02-19T18:34:09.92
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