Earthquake with magnitude of ML 0.9 on date 18-07-2019 and time 02:54:59 (Italy) in region 3 km NE Terni (TR)

A magnitude ML 0.9 earthquake occured in region: 3 km NE Terni (TR), on

  • 18-07-2019 00:54:59 (UTC)
  • 18-07-2019 02:54:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.58, 12.67 at 15 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
Terni TR 3 111501 111501
Montefranco TR 8 1276 112777
Arrone TR 8 2763 115540
Stroncone TR 10 4917 120457
Ferentillo TR 11 1913 122370
San Gemini TR 11 5018 127388
Labro RI 12 374 127762
Colli sul Velino RI 13 533 128295
Polino TR 14 233 128528
Morro Reatino RI 15 373 128901
Narni TR 15 19785 148686
Acquasparta TR 16 4778 153464
Greccio RI 17 1558 155022
Montecastrilli TR 17 5022 160044
Rivodutri RI 17 1253 161297
Spoleto PG 18 38218 199515
Configni RI 18 633 200148
Scheggino PG 19 461 200609
Poggio Bustone RI 20 2055 202664
Cottanello RI 20 563 203227

Municipalities with at least 50000 inhabitants

An earthquake occurred to
3 Km NE of Terni (111501 inhabitants)
41 Km S of Foligno (57155 inhabitants)
50 Km E of Viterbo (67173 inhabitants)
63 Km SE of Perugia (166134 inhabitants)
65 Km N of Guidonia Montecelio (88673 inhabitants)
65 Km W of L'Aquila (69753 inhabitants)
70 Km N of Tivoli (56533 inhabitants)
78 Km N of Roma (2864731 inhabitants)
85 Km W of Teramo (54892 inhabitants)
91 Km NE of Civitavecchia (52991 inhabitants)
97 Km NE of Fiumicino (78395 inhabitants)
100 Km N of Velletri (53303 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 0.9 2019-07-18
00:54:59
42.59 12.67 15 2019-07-18
01:54:12
Sala Sismica INGV-Roma 70667331
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-18 00:54:59 ± 0.16
Latitude 42.59 ± 0.01
Longitude 12.67 ± 0.01
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 70667331

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1139
Semi-minor axis of confidence ellipse (meter) 390
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) 1140
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 195
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
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) 0.06655
Epicentral distance of station farthest from the epicenter (degree) 0.2716
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:0.9

Field Value
Value 0.9
Uncertainty 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 70667331
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-18 01:54:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MOMA.HHZ. 2019-07-18T00:55:09.13 0.3 undecidable manual S 341 0.2311 108 0.04 96
IV.GAVE.EHZ. 2019-07-18T00:55:07.92 0.3 undecidable manual S 57 0.1952 112 -0.18 95
IV.MOMA.HHZ. 2019-07-18T00:55:05.09 0.3 undecidable manual P 341 0.2311 108 0.01 97
IV.ARRO.EHZ. 2019-07-18T00:55:05.39 0.3 undecidable manual S 95 0.0692 148 0.2 97
IV.LNSS.HHZ. 2019-07-18T00:55:05.68 0.3 undecidable manual P 86 0.2716 104 -0.08 95
IV.GAVE.EHZ. 2019-07-18T00:55:04.52 0.3 undecidable manual P 57 0.1952 112 0.01 98
IV.CESX.HHZ. 2019-07-18T00:55:04.94 0.3 undecidable manual S 290 0.0665 149 -0.2 97
IV.ARRO.EHZ. 2019-07-18T00:55:02.92 0.3 undecidable manual P 95 0.0692 148 0.09 99
IV.CESX.HHZ. 2019-07-18T00:55:02.84 0.3 undecidable manual P 290 0.0665 149 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOMA.HHN. ML:0 3.2281805E-5 0.32 AML other m 2019-07-18T00:55:09.96
IV.LNSS.HHE. ML:0 2.816794E-5 0.12 AML other m 2019-07-18T00:55:11.60
IV.LNSS.HHN. ML:0 2.9389025E-5 0.16 AML other m 2019-07-18T00:55:11.49
IV.CESX.HHE. ML:0.7 5.507746E-5 0.3 AML other m 2019-07-18T00:55:05.22
IV.CESX.HHN. ML:0.7 5.6467385E-5 0.22 AML other m 2019-07-18T00:55:06.49
IV.ARRO.EHE. ML:0.9 8.174178E-5 0.16 AML other m 2019-07-18T00:55:06.09
IV.ARRO.EHN. ML:0.8 6.771694E-5 0.16 AML other m 2019-07-18T00:55:06.57
IV.GAVE.EHE. ML:1.2 9.5202005E-5 0.24 AML other m 2019-07-18T00:55:08.88
IV.GAVE.EHN. ML:1 6.391861E-5 0.24 AML other m 2019-07-18T00:55:08.12
IV.MOMA.HHE. ML:0.8 3.380827E-5 0.26 AML other m 2019-07-18T00:55:09.39
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