Earthquake with magnitude of ML 0.1 on date 31-07-2018 and time 02:38:38 (Italy) in region 5 km S Serra Sant'Abbondio (PU)

A magnitude ML 0.1 earthquake occured in region: 5 km S Serra Sant'Abbondio (PU), on

  • 31-07-2018 00:38:38 (UTC)
  • 31-07-2018 02:38:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4450, 12.7530 at 16 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
Serra Sant'Abbondio PU 5 1027 1027
Frontone PU 8 1300 2327
Scheggia e Pascelupo PG 8 1393 3720
Sassoferrato AN 9 7285 11005
Costacciaro PG 10 1216 12221
Cantiano PU 11 2245 14466
Sigillo PG 13 2404 16870
Cagli PU 14 8731 25601
Pergola PU 15 6333 31934
Genga AN 15 1797 33731
Arcevia AN 16 4612 38343
Fossato di Vico PG 17 2840 41183
Fabriano AN 17 31480 72663
Gubbio PG 17 32216 104879

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km NE of Perugia (166134 inhabitants)
49 Km SW of Fano (60888 inhabitants)
53 Km S of Pesaro (94582 inhabitants)
55 Km N of Foligno (57155 inhabitants)
65 Km W of Ancona (100861 inhabitants)
70 Km S of Rimini (147750 inhabitants)
70 Km E of Arezzo (99543 inhabitants)
87 Km SE of Cesena (96758 inhabitants)
99 Km N of Terni (111501 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 0.1 2018-07-31
00:38:38
43.4452 12.7532 16 2018-07-31
02:23:50
Sala Sismica INGV-Roma 59206111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-07-31 00:38:38 ± 0.1
Latitude 43.4452 ± 0.0027
Longitude 12.7532 ± 0.0050
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 59206111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 429
Semi-minor axis of confidence ellipse (meter) 128
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 96
Circular confidence region, given by single value of horizontal uncertainty (meter) 430.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 129
Number of associated phases, regardless of their use for origin computation 10
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) 0.07554
Epicentral distance of station farthest from the epicenter (degree) 0.27249
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:0.1

Field Value
Value 0.1
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 59206111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-07-31 02:23:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATCC.EHZ. 2018-07-31T00:38:48.97 0.3 undecidable manual S 198 30.2475 105 0.1 71
IV.NARO.HHZ. 2018-07-31T00:38:47.37 0.3 undecidable manual S 323 23.0547 112 0.33 68
IV.PIEI.HHZ. 2018-07-31T00:38:46.22 0.3 undecidable manual S 300 20.2686 117 -0.14 72
IV.ARVD.HHZ. 2018-07-31T00:38:45.43 0.3 undecidable manual S 69 16.2726 124 -0.01 72
IV.ATCC.EHZ. 2018-07-31T00:38:44.24 0.1 undecidable manual P 198 30.2475 105 -0.1 94
IV.FRON.EHZ. 2018-07-31T00:38:43.91 0.3 undecidable manual S 345 8.3805 147 -0.04 74
IV.NARO.HHZ. 2018-07-31T00:38:43.31 0.1 undecidable manual P 323 23.0547 112 0.02 97
IV.PIEI.HHZ. 2018-07-31T00:38:42.80 0.1 undecidable manual P 300 20.2686 117 -0.09 96
IV.ARVD.HHZ. 2018-07-31T00:38:42.40 0.1 undecidable manual P 69 16.2726 124 0.03 98
IV.FRON.EHZ. 2018-07-31T00:38:41.54 0.1 undecidable manual P 345 8.3805 147 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NARO.HHE. ML:0.4 0.00001301 0.88 AML other m 2018-07-31T00:38:48.51
IV.FRON.EHE. ML:-0.3 0.000006935233499999999 0.08 AML other m 2018-07-31T00:38:44.26
IV.FRON.EHN. ML:0.0 0.000009372803 0.06 AML other m 2018-07-31T00:38:44.45
IV.ARVD.HHN. ML:-0.2 0.000005427135450000001 0.08 AML other m 2018-07-31T00:38:45.79
IV.ARVD.HHE. ML:-0.2 0.0000046453955 0.14 AML other m 2018-07-31T00:38:45.68
IV.PIEI.HHE. ML:0.2 0.000011669948999999999 0.08 AML other m 2018-07-31T00:38:46.53
IV.PIEI.HHN. ML:-0.1 0.0000049928095 0.08 AML other m 2018-07-31T00:38:46.38
IV.ATCC.EHE. ML:0.7 0.00002130795 0 AML other m 2018-07-31T00:38:49.38
IV.ATCC.EHN. ML:0.4 0.0000104137431 0 AML other m 2018-07-31T00:38:49.37
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download