Earthquake with magnitude of ML 0.8 on date 26-08-2021 and time 03:03:37 (Italy) in region 5 km SE Fiordimonte (MC)

A magnitude ML 0.8 earthquake occured in region: 5 km SE Fiordimonte (MC), on

  • 26-08-2021 01:03:37 (UTC)
  • 26-08-2021 03:03:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9940, 13.1150 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
Fiordimonte MC 5 202 202
Ussita MC 6 444 646
Fiastra MC 6 559 1205
Acquacanina MC 6 121 1326
Visso MC 7 1107 2433
Pieve Torina MC 8 1458 3891
Pievebovigliana MC 8 866 4757
Monte Cavallo MC 9 145 4902
Bolognola MC 9 142 5044
Castelsantangelo sul Nera MC 11 281 5325
Muccia MC 11 915 6240
Preci PG 14 724 6964
Serravalle di Chienti MC 16 1070 8034
Sarnano MC 16 3264 11298
Camerino MC 16 6974 18272
Cessapalombo MC 17 512 18784
Caldarola MC 19 1823 20607
Sellano PG 19 1079 21686
Montefortino FM 19 1178 22864
Camporotondo di Fiastrone MC 20 563 23427
Amandola FM 20 3629 27056

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
60 Km E of Perugia (166134 inhabitants)
61 Km NW of Teramo (54892 inhabitants)
61 Km NE of Terni (111501 inhabitants)
75 Km NW of L'Aquila (69753 inhabitants)
77 Km SW of Ancona (100861 inhabitants)
95 Km S of Fano (60888 inhabitants)
100 Km NW of Montesilvano (53738 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 0.8 2021-08-26
01:03:37
42.9943 13.1147 13 2021-08-26
01:40:17
Sala Sismica INGV-Roma 94640821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-26 01:03:37 ± 0.07
Latitude 42.9943 ± 0.0045
Longitude 13.1147 ± 0.0074
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 94640821

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 482
Semi-minor axis of confidence ellipse (meter) 462
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 55
Circular confidence region, given by single value of horizontal uncertainty (meter) 480.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 139
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) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.09893
Epicentral distance of station farthest from the epicenter (degree) 0.18166
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:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 94640821
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-26 01:40:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MML1.EHZ. 2021-08-26T01:03:44.12 0.3 undecidable manual S 319 17.5713 111 -0.16 73
IV.MMO1.EHZ. 2021-08-26T01:03:44.75 0.3 undecidable manual S 121 20.1687 106 -0.19 72
IV.NRCA.HHZ. 2021-08-26T01:03:44.14 0.3 undecidable manual S 180 17.871 110 -0.2 73
IV.CSP1.EHZ. 2021-08-26T01:03:43.09 0.3 undecidable manual S 34 13.0758 123 -0.1 74
IV.MC2.EHZ. 2021-08-26T01:03:42.81 0.3 undecidable manual S 147 10.9779 129 0.06 75
IV.NRCA.HHZ. 2021-08-26T01:03:41.26 0.1 undecidable manual P 180 17.871 110 0.02 100
IV.MML1.EHZ. 2021-08-26T01:03:41.31 0.1 undecidable manual P 319 17.5713 111 0.11 99
IV.MMO1.EHZ. 2021-08-26T01:03:41.63 0.1 undecidable manual P 121 20.1687 106 0.05 99
IV.CSP1.EHZ. 2021-08-26T01:03:40.65 0.1 undecidable manual P 34 13.0758 123 0.07 100
IV.MC2.EHZ. 2021-08-26T01:03:40.50 0.1 undecidable manual P 147 10.9779 129 0.18 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:0.8 0.000045249999999999995 0.3 AML other m 2021-08-26T01:03:44.28
IV.NRCA.HHE. ML:0.7 0.00004235 0.32 AML other m 2021-08-26T01:03:44.52
IV.MML1.EHN. ML:1.0 0.00007159999999999999 0.12 AML other m 2021-08-26T01:03:44.48
IV.MML1.EHE. ML:0.7 0.00003385 0.2 AML other m 2021-08-26T01:03:45.20
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