Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 1.3 on date 12-04-2020 and time 00:45:52 (Italy) in region 1 km E Preci (PG)

A magnitude Md 1.3 earthquake occured in region: 1 km E Preci (PG), on

  • 11-04-2020 22:45:52 (UTC)
  • 12-04-2020 00:45:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8780, 13.0460 at 11 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 1 724 724
Visso MC 7 1107 1831
Castelsantangelo sul Nera MC 9 281 2112
Sellano PG 10 1079 3191
Norcia PG 10 4957 8148
Ussita MC 11 444 8592
Cerreto di Spoleto PG 12 1075 9667
Monte Cavallo MC 14 145 9812
Cascia PG 18 3217 13029
Fiordimonte MC 18 202 13231
Pieve Torina MC 19 1458 14689
Vallo di Nera PG 19 364 15053
Bolognola MC 20 142 15195
Fiastra MC 20 559 15754
Acquacanina MC 20 121 15875

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km E of Foligno (57155 inhabitants)
48 Km NE of Terni (111501 inhabitants)
59 Km W of Teramo (54892 inhabitants)
59 Km E of Perugia (166134 inhabitants)
65 Km NW of L'Aquila (69753 inhabitants)
91 Km SW of Ancona (100861 inhabitants)
92 Km NE of Viterbo (67173 inhabitants)
99 Km W 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
Bulletin
Rev1000 		Md 1.3 2020-04-11
22:45:52		 42.8778 13.0463 11 2020-07-18
21:08:42		 Bollettino Sismico Italiano INGV 80915321
Reviewed
Rev100 		Md 1.5 2020-04-11
22:45:52		 42.8777 13.045 11 2020-04-11
22:56:41		 Sala Sismica INGV-Roma 78123931
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-11 22:45:52 ± 0.06
Latitude 42.8778 ± 0.0027
Longitude 13.0463 ± 0.0049
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 80915321

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 438
Semi-minor axis of confidence ellipse (meter) 288
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 257
Circular confidence region, given by single value of horizontal uncertainty (meter) 440.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 140
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.27519
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 8
Magnitudes information

Md:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 7
Type of magnitude Md
Reference to an origin 80915321
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-07-09 22:36:43

Md:1.5

Field Value
Value 1.5
Uncertainty 0.7
Num. used stations 4
Type of magnitude Md
Reference to an origin 78123931
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-11 22:56:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PCN.EHZ. 2020-04-11T22:46:40.18 3.0 undecidable manual Pg 13.11 0
IV.LNSS.HHZ. 2020-04-11T22:46:03.11 0.3 undecidable manual S 181 30.5472 50 0.16 70
IV.CSP1.EHZ. 2020-04-11T22:46:02.15 0.3 undecidable manual S 28 27.0507 50 0.13 71
IV.MMO1.EHZ. 2020-04-11T22:46:00.63 0.3 undecidable manual S 84 22.9548 50 -0.29 69
IV.PTRJ.HHZ. 2020-04-11T22:46:00.26 3.0 undecidable manual Pn -0.02 0
IV.CESI.HHZ. 2020-04-11T22:45:59.44 0.3 undecidable manual S 321 18.1707 121 -0.18 71
IV.FDMO.HHE. 2020-04-11T22:45:59.47 0.3 undecidable manual S 11 17.9709 121 -0.06 73
IV.MC2.EHZ. 2020-04-11T22:45:58.04 0.3 undecidable manual S 72 12.1767 131 0.12 73
IV.LNSS.HHZ. 2020-04-11T22:45:58.42 0.3 undecidable manual P 181 30.5472 50 -0.02 72
IV.FEMA.HNZ. 2020-04-11T22:45:57.21 0.3 undecidable manual S 2 9.3795 139 -0.02 75
IV.MMO1.EHZ. 2020-04-11T22:45:57.22 0.3 undecidable manual P 84 22.9548 50 -0.05 73
IV.CSP1.EHZ. 2020-04-11T22:45:57.85 0.1 undecidable manual P 28 27.0507 50 -0.05 96
IV.FDMO.HHE. 2020-04-11T22:45:56.51 0.3 undecidable manual P 11 17.9709 121 0.04 74
IV.NRCA.HNN. 2020-04-11T22:45:56.51 0.3 undecidable manual S 132 7.3815 146 -0.3 71
IV.CESI.HHZ. 2020-04-11T22:45:56.46 0.3 undecidable manual P 321 18.1707 121 -0.06 73
IV.FEMA.HNZ. 2020-04-11T22:45:55.41 0.3 undecidable manual P 2 9.3795 139 0.27 71
IV.MC2.EHZ. 2020-04-11T22:45:55.85 0.3 undecidable manual P 72 12.1767 131 0.32 70
IV.NRCA.HNN. 2020-04-11T22:45:54.93 0.1 undecidable manual P 132 7.3815 146 0.04 100
IV.TOLF.HHZ. 2020-04-11T22:45:52.06 3.0 undecidable manual P 0.02 0
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