Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 26-05-2020 and time 22:37:43 (UTC) in region 4 km E Preci (PG)

A magnitude ML 0.8 earthquake occured in region: 4 km E Preci (PG), on

  • 26-05-2020 22:37:43 (UTC)
  • 27-05-2020 00:37:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8890, 13.0930 at 10 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Preci PG 5 724 724
Visso MC 5 1107 1831
Castelsantangelo sul Nera MC 5 281 2112
Ussita MC 7 444 2556
Norcia PG 11 4957 7513
Sellano PG 13 1079 8592
Monte Cavallo MC 14 145 8737
Bolognola MC 16 142 8879
Cerreto di Spoleto PG 16 1075 9954
Fiordimonte MC 17 202 10156
Acquacanina MC 17 121 10277
Fiastra MC 17 559 10836
Pieve Torina MC 18 1458 12294
Montemonaco AP 19 604 12898
Pievebovigliana MC 19 866 13764
Cascia PG 20 3217 16981

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Foligno (57155 inhabitants)
52 Km NE of Terni (111501 inhabitants)
56 Km W of Teramo (54892 inhabitants)
62 Km E of Perugia (166134 inhabitants)
65 Km NW of L'Aquila (69753 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
96 Km W of Montesilvano (53738 inhabitants)
96 Km NE of Viterbo (67173 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 2020-05-26
22:37:43		 42.8892 13.093 10 2020-05-26
22:44:22		 Sala Sismica INGV-Roma 79595821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-26 22:37:43 ± 0.07
Latitude 42.8892 ± 0.0027
Longitude 13.0930 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 79595821

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 327
Semi-minor axis of confidence ellipse (meter) 246
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 190
Circular confidence region, given by single value of horizontal uncertainty (meter) 330.0
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 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.05756
Epicentral distance of station farthest from the epicenter (degree) 0.35253
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 79595821
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-26 22:44:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2020-05-26T22:37:56.28 0.6 undecidable manual S 296 39.1275 50 -0.08 48
IV.CSP1.EHZ. 2020-05-26T22:37:52.16 0.3 undecidable manual S 22 24.2535 112 -0.11 74
IV.ASSB.HHZ. 2020-05-26T22:37:50.79 0.3 undecidable manual P 296 39.1275 50 0 73
IV.CESI.HHZ. 2020-05-26T22:37:50.91 0.3 undecidable manual S 310 19.9689 116 0 76
IV.MMO1.EHZ. 2020-05-26T22:37:50.49 0.3 undecidable manual S 86 19.0698 117 -0.12 74
IV.FDMO.HHZ. 2020-05-26T22:37:49.67 0.3 undecidable manual S 358 16.3725 121 -0.13 74
IV.CSP1.EHZ. 2020-05-26T22:37:48.41 0.6 undecidable manual P 22 24.2535 112 -0.02 50
IV.FDMO.HHZ. 2020-05-26T22:37:47.15 0.1 undecidable manual P 358 16.3725 121 0.14 99
IV.MMO1.EHZ. 2020-05-26T22:37:47.48 0.3 positive manual P 86 19.0698 117 0 76
IV.MC2.EHZ. 2020-05-26T22:37:47.78 0.3 undecidable manual S 72 8.1807 140 0.16 75
IV.CESI.HHZ. 2020-05-26T22:37:47.69 0.1 positive manual P 310 19.9689 116 0.05 100
IV.NRCA.HHZ. 2020-05-26T22:37:46.97 0.6 undecidable manual S 164 6.3936 147 -0.28 49
IV.MC2.EHZ. 2020-05-26T22:37:46.00 0.6 negative manual P 72 8.1807 140 0.26 49
IV.NRCA.HHZ. 2020-05-26T22:37:45.62 0.6 undecidable manual P 164 6.3936 147 0.09 51
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.4 0.00039400000000000004 0.16 AML other m 2020-05-26T22:37:47.07
IV.NRCA.HHE. ML:1.1 0.00020800000000000001 1.06 AML other m 2020-05-26T22:37:47.12
IV.FDMO.HHE. ML:0.4 0.00002065 1.22 AML other m 2020-05-26T22:37:50.82
IV.FDMO.HHN. ML:0.4 0.000025099999999999997 0.48 AML other m 2020-05-26T22:37:50.45
IV.CESI.HHE. ML:0.7 0.00003265 0.56 AML other m 2020-05-26T22:37:51.28
IV.CESI.HHN. ML:0.9 0.00006285000000000001 0.14 AML other m 2020-05-26T22:37:51.18
IV.ASSB.HHN. ML:0.8 0.000027400000000000002 0.7 AML other m 2020-05-26T22:37:56.96
IV.ASSB.HHE. ML:0.9 0.000030550000000000004 1.38 AML other m 2020-05-26T22:37:57.16
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