Earthquake with magnitude of ML 0.9 on date 24-08-2018 and time 10:24:24 (Italy) in region 8 km N Sellano (PG)

A magnitude ML 0.9 earthquake occured in region: 8 km N Sellano (PG), on

  • 24-08-2018 08:24:24 (UTC)
  • 24-08-2018 10:24:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.96, 12.91 at 13 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
Sellano PG 8 1079 1079
Monte Cavallo MC 9 145 1224
Serravalle di Chienti MC 14 1070 2294
Preci PG 14 724 3018
Visso MC 15 1107 4125
Cerreto di Spoleto PG 15 1075 5200
Pieve Torina MC 15 1458 6658
Trevi PG 16 8469 15127
Foligno PG 17 57155 72282
Valtopina PG 17 1398 73680
Fiordimonte MC 17 202 73882
Muccia MC 18 915 74797
Campello sul Clitunno PG 18 2442 77239
Pievebovigliana MC 19 866 78105
Ussita MC 19 444 78549
Spello PG 20 8645 87194
Nocera Umbra PG 20 5839 93033

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km E of Foligno (57155 inhabitants)
45 Km E of Perugia (166134 inhabitants)
49 Km NE of Terni (111501 inhabitants)
73 Km W of Teramo (54892 inhabitants)
78 Km NW of L'Aquila (69753 inhabitants)
89 Km NE of Viterbo (67173 inhabitants)
89 Km SW of Ancona (100861 inhabitants)
99 Km S of Fano (60888 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 2018-08-24
08:24:24
42.96 12.91 13 2018-08-24
08:30:41
Sala Sismica INGV-Roma 60151211
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-24 08:24:24 ± 0.07
Latitude 42.96 ± 0.00
Longitude 12.91 ± 0.00
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 60151211

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 427
Semi-minor axis of confidence ellipse (meter) 289
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 193
Circular confidence region, given by single value of horizontal uncertainty (meter) 430
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 132
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.36602
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 60151211
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-24 08:30:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
OB.GAVE.EHZ. 2018-08-24T08:24:35.18 3.0 undecidable manual S -0.02 0
IV.CSP1.EHZ. 2018-08-24T08:24:35.27 0.3 undecidable manual S 58 0.2563 98 0.27 70
IV.ASSB.HHZ. 2018-08-24T08:24:33.37 0.3 undecidable manual S 296 0.2014 103 -0.01 74
IV.MML1.HNN. 2018-08-24T08:24:32.34 0.3 undecidable manual S 17 0.1646 109 0.01 75
IV.LNSS.HHE. 2018-08-24T08:24:32.47 0.3 undecidable manual P 164 0.366 95 -0.13 70
IV.FDMO.HHZ. 2018-08-24T08:24:31.83 0.1 undecidable manual S 59 0.1547 111 -0.22 95
IV.CSP1.EHZ. 2018-08-24T08:24:30.79 0.1 undecidable manual P 58 0.2563 98 0.06 97
IV.MC2.EHZ. 2018-08-24T08:24:30.00 0.1 undecidable manual P 102 0.2113 102 0.03 98
IV.FDMO.HHZ. 2018-08-24T08:24:29.02 0.3 negative manual P 59 0.1547 111 -0.01 74
IV.MML1.HNN. 2018-08-24T08:24:29.21 0.1 undecidable manual P 17 0.1646 109 0.02 99
IV.ASSB.HHZ. 2018-08-24T08:24:29.79 0.1 negative manual P 296 0.2014 103 -0.01 99
IV.CESI.HHZ. 2018-08-24T08:24:29.58 0.1 undecidable manual S 358 0.0486 152 -0.1 100
IV.FEMA.HNE. 2018-08-24T08:24:28.34 0.3 undecidable manual P 87 0.1043 127 0.05 75
IV.CESI.HHZ. 2018-08-24T08:24:27.79 0.1 undecidable manual P 358 0.0486 152 0.13 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0.8 6.86E-5 0.78 AML other m 2018-08-24T08:24:29.60
IV.CESI.HHN. ML:0.8 8.145E-5 0.08 AML other m 2018-08-24T08:24:29.62
IV.FDMO.HHN. ML:1 7.545E-5 1.8 AML other m 2018-08-24T08:24:32.00
IV.FDMO.HHE. ML:0.9 6.7E-5 0.2 AML other m 2018-08-24T08:24:32.06
IV.ASSB.HHE. ML:1 5.28E-5 0.14 AML other m 2018-08-24T08:24:33.57
IV.ASSB.HHN. ML:1 5.755E-5 0.16 AML other m 2018-08-24T08:24:33.62
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