INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 0.7 on date 10-08-2018 and time 04:15:03 (Italy) in region 3 km SW Valle Castellana (TE)

A magnitude ML 0.7 earthquake occured in region: 3 km SW Valle Castellana (TE), on

  • 10-08-2018 02:15:03 (UTC)
  • 10-08-2018 04:15:03 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.72, 13.47 at 17 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
Valle Castellana TE 3 977 977
Rocca Santa Maria TE 6 537 1514
Acquasanta Terme AP 8 2916 4430
Cortino TE 11 656 5086
Arquata del Tronto AP 15 1178 6264
Roccafluvione AP 16 2010 8274
Torricella Sicura TE 17 2641 10915
Civitella del Tronto TE 17 5116 16031
Ascoli Piceno AP 17 49407 65438
Folignano AP 17 9241 74679
Campli TE 18 7209 81888
Montegallo AP 18 523 82411
Amatrice RI 18 2657 85068
Venarotta AP 18 2066 87134
Accumoli RI 19 667 87801
Crognaleto TE 19 1297 89098
Fano Adriano TE 20 296 89394
Campotosto AQ 20 542 89936
Palmiano AP 20 196 90132

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km W of Teramo (54892 inhabitants)
41 Km N of L'Aquila (69753 inhabitants)
60 Km W of Montesilvano (53738 inhabitants)
67 Km W of Pescara (121014 inhabitants)
68 Km E of Foligno (57155 inhabitants)
70 Km E of Terni (111501 inhabitants)
70 Km NW of Chieti (51815 inhabitants)
98 Km E of Perugia (166134 inhabitants)
100 Km S of Ancona (100861 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 0.7 2018-08-10
02:15:03
42.72 13.47 17 2018-08-10
02:20:25
Sala Sismica INGV-Roma 59574611
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-10 02:15:03 ± 0.08
Latitude 42.72 ± 0.00
Longitude 13.47 ± 0.00
Depth (km) 17 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 59574611

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 368
Semi-minor axis of confidence ellipse (meter) 94
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 62
Circular confidence region, given by single value of horizontal uncertainty (meter) 370
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 137
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.2671
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 59574611
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-10 02:20:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SSP9.EHZ. 2018-08-10T02:15:47.39 3.0 undecidable manual Sg 9.66 0
IV.FRES.HHZ. 2018-08-10T02:15:46.92 3.0 undecidable manual Sg 0.08 0
IV.IOCA.HHZ. 2018-08-10T02:15:46.81 3.0 undecidable manual Sn -0.25 0
IV.ORI.HHZ. 2018-08-10T02:15:38.75 3.0 undecidable manual Pn 0.92 0
GU.GRAM.HHZ. 2018-08-10T02:15:38.33 3.0 undecidable manual Pn 15.07 0
IV.MMO1.EHZ. 2018-08-10T02:15:12.98 0.1 undecidable manual S 329 0.2077 116 -0.01 98
IV.T1299.HNE. 2018-08-10T02:15:12.03 0.1 undecidable manual S 238 0.1637 124 0.17 96
IV.CAMP.HHE. 2018-08-10T02:15:12.50 0.3 undecidable manual S 194 0.1907 119 -0.03 73
IV.ROM9.HNZ. 2018-08-10T02:15:12.44 3.0 positive manual P 8.05 0
IV.TERO.HHZ. 2018-08-10T02:15:11.34 0.1 undecidable manual S 135 0.1376 130 0.1 98
IV.SMA1.EHZ. 2018-08-10T02:15:11.11 0.1 undecidable manual S 228 0.1349 131 -0.07 98
IV.MF5.EHN. 2018-08-10T02:15:10.30 0.3 undecidable manual P 358 0.2671 109 0.19 70
IV.MTRA.EHN. 2018-08-10T02:15:09.85 0.1 undecidable manual S 303 0.0665 153 -0.05 100
IV.MMO1.EHZ. 2018-08-10T02:15:09.03 0.6 undecidable manual P 329 0.2077 116 -0.14 48
IV.TERO.HHZ. 2018-08-10T02:15:08.11 0.1 undecidable manual P 135 0.1376 130 -0.05 98
IV.CAMP.HHE. 2018-08-10T02:15:08.75 0.1 undecidable manual P 194 0.1907 119 -0.16 95
IV.SMA1.EHZ. 2018-08-10T02:15:08.14 0.3 positive manual P 228 0.1349 131 0.01 75
IV.T1299.HNE. 2018-08-10T02:15:08.59 0.1 undecidable manual P 238 0.1637 124 0.07 98
IV.MTRA.EHN. 2018-08-10T02:15:07.34 0.1 undecidable manual P 303 0.0665 153 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TERO.HHE. ML:0.4 1.985E-5 0.24 AML other m 2018-08-10T02:15:11.36
IV.SMA1.EHN. ML:1 8.24E-5 0.14 AML other m 2018-08-10T02:15:11.46
IV.TERO.HHN. ML:0.5 2.6E-5 0.08 AML other m 2018-08-10T02:15:11.47
IV.SMA1.EHE. ML:0.7 3.675E-5 0.2 AML other m 2018-08-10T02:15:11.54
IV.ORI.HHN. ML:3.4 0.000171 1.92 AML other m 2018-08-10T02:15:43.02
IV.ORI.HHE. ML:3.6 0.0002235 0.06 AML other m 2018-08-10T02:15:44.05
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