Earthquake with magnitude of ML 0.9 on date 01-08-2018 and time 04:16:30 (UTC) in region 3 km NE Treia (MC)

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

  • 01-08-2018 04:16:30 (UTC)
  • 01-08-2018 06:16:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.34, 13.34 at 8 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
Appignano MC 3 4213 4213
Treia MC 3 9403 13616
Pollenza MC 8 6618 20234
Montecassiano MC 9 7125 27359
Macerata MC 10 42473 69832
Cingoli MC 11 10352 80184
Filottrano AN 11 9499 89683
Montefano MC 12 3541 93224
Tolentino MC 15 20069 113293
Urbisaglia MC 16 2628 115921
Petriolo MC 16 1998 117919
Staffolo AN 16 2253 120172
Corridonia MC 17 15430 135602
San Severino Marche MC 18 12726 148328
Apiro MC 18 2280 150608
Santa Maria Nuova AN 18 4179 154787
Montelupone MC 19 3596 158383
Recanati MC 19 21349 179732
San Paolo di Jesi AN 19 933 180665
Colmurano MC 19 1263 181928
Loro Piceno MC 20 2401 184329
Morrovalle MC 20 10195 194524

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km SW of Ancona (100861 inhabitants)
62 Km SE of Fano (60888 inhabitants)
67 Km NE of Foligno (57155 inhabitants)
73 Km SE of Pesaro (94582 inhabitants)
81 Km NW of Teramo (54892 inhabitants)
81 Km E of Perugia (166134 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 2018-08-01
04:16:30
43.34 13.34 8 2018-08-01
04:22:02
Sala Sismica INGV-Roma 59231721
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-01 04:16:30 ± 0.13
Latitude 43.34 ± 0.01
Longitude 13.34 ± 0.01
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 59231721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 788
Semi-minor axis of confidence ellipse (meter) 315
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 244
Circular confidence region, given by single value of horizontal uncertainty (meter) 790
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 112
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.11152
Epicentral distance of station farthest from the epicenter (degree) 0.43797
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 59231721
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-01 04:22:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MMO1.EHZ. 2018-08-01T04:16:46.51 0.3 undecidable manual S 181 0.4362 50 0.29 66
IV.MF5.EHZ. 2018-08-01T04:16:44.53 0.3 undecidable manual S 166 0.3588 50 0.6 62
IV.ARVD.HHZ. 2018-08-01T04:16:43.11 0.1 undecidable manual S 299 0.3301 50 0.03 95
IV.CSP1.EHE. 2018-08-01T04:16:40.73 0.3 undecidable manual S 202 0.2626 105 0.06 72
IV.MMO1.EHZ. 2018-08-01T04:16:39.12 0.3 undecidable manual P 181 0.4362 50 -0.32 66
IV.PF6.EHE. 2018-08-01T04:16:39.20 0.3 undecidable manual S 208 0.2239 108 -0.04 73
IV.MC2.EHZ. 2018-08-01T04:16:39.08 0.3 undecidable manual P 194 0.438 50 -0.38 65
IV.MF5.EHZ. 2018-08-01T04:16:38.13 0.6 negative manual P 166 0.3588 50 0.02 48
IV.FDMO.HHZ. 2018-08-01T04:16:37.44 0.6 positive manual P 212 0.3507 50 -0.53 43
IV.EL6.EHZ. 2018-08-01T04:16:37.87 0.3 undecidable manual S 268 0.1718 113 0.5 67
IV.ARVD.HHZ. 2018-08-01T04:16:37.42 0.6 negative manual P 299 0.3301 50 -0.2 46
IV.GUMA.HHZ. 2018-08-01T04:16:36.67 0.3 undecidable manual P 180 0.2734 105 0.22 70
IV.AOI.HHZ. 2018-08-01T04:16:36.97 0.6 undecidable manual P 42 0.2869 104 0.21 46
IV.CSP1.EHE. 2018-08-01T04:16:35.88 0.3 undecidable manual P 202 0.2626 105 -0.35 68
IV.CING.HHZ. 2018-08-01T04:16:35.26 0.3 undecidable manual S 291 0.1115 123 -0.03 75
IV.PF6.EHE. 2018-08-01T04:16:35.03 0.3 undecidable manual P 208 0.2239 108 -0.38 68
IV.MNTP.HNE. 2018-08-01T04:16:35.38 0.6 undecidable manual P 154 0.2203 108 0.05 48
IV.EL6.EHZ. 2018-08-01T04:16:34.42 0.6 negative manual P 268 0.1718 113 0.09 49
IV.CING.HHZ. 2018-08-01T04:16:33.13 0.1 positive manual P 291 0.1115 123 0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CING.HHN. ML:1.2 0.000173 0.12 AML other m 2018-08-01T04:16:36.20
IV.CING.HHE. ML:1 0.0001285 0.1 AML other m 2018-08-01T04:16:36.50
IV.EL6.EHE. ML:1 8.255E-5 1.18 AML other m 2018-08-01T04:16:38.31
IV.EL6.EHN. ML:1.1 9.42E-5 0.54 AML other m 2018-08-01T04:16:38.88
IV.GUMA.HHN. ML:1.2 7.52E-5 1.16 AML other m 2018-08-01T04:16:41.78
IV.GUMA.HHE. ML:1.3 0.000107 1.6 AML other m 2018-08-01T04:16:41.09
IV.ARVD.HHN. ML:0.6 1.715E-5 0.88 AML other m 2018-08-01T04:16:43.97
IV.ARVD.HHE. ML:0.6 1.445E-5 1.06 AML other m 2018-08-01T04:16:45.37
IV.FDMO.HHE. ML:0.7 1.97E-5 0.46 AML other m 2018-08-01T04:16:45.61
IV.FDMO.HHN. ML:0.6 1.485E-5 0.76 AML other m 2018-08-01T04:16:47.43
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