Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 04-04-2019 and time 05:51:49 (Italy) in region 1 km NW Gualdo (MC)

A magnitude ML 0.8 earthquake occured in region: 1 km NW Gualdo (MC), on

  • 04-04-2019 03:51:49 (UTC)
  • 04-04-2019 05:51:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0800, 13.3310 at 23 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
Gualdo MC 2 815 815
San Ginesio MC 3 3498 4313
Sarnano MC 5 3264 7577
Sant'Angelo in Pontano MC 6 1436 9013
Cessapalombo MC 7 512 9525
Ripe San Ginesio MC 8 852 10377
Camporotondo di Fiastrone MC 8 563 10940
Penna San Giovanni MC 8 1108 12048
Colmurano MC 10 1263 13311
Monte San Martino MC 10 765 14076
Caldarola MC 11 1823 15899
Amandola FM 11 3629 19528
Loro Piceno MC 12 2401 21929
Belforte del Chienti MC 12 1886 23815
Falerone FM 12 3337 27152
Smerillo FM 13 365 27517
Bolognola MC 13 142 27659
Montappone FM 13 1682 29341
Servigliano FM 13 2336 31677
Monte Vidon Corrado FM 13 731 32408
Urbisaglia MC 14 2628 35036
Acquacanina MC 14 121 35157
Massa Fermana FM 14 963 36120
Montefalcone Appennino FM 15 424 36544
Fiastra MC 15 559 37103
Tolentino MC 15 20069 57172
Comunanza AP 15 3166 60338
Santa Vittoria in Matenano FM 15 1330 61668
Montefortino FM 15 1178 62846
Serrapetrona MC 16 966 63812
Monteleone di Fermo FM 17 395 64207
Belmonte Piceno FM 17 646 64853
Mogliano MC 17 4696 69549
Montegiorgio FM 18 6851 76400
Montelparo FM 18 778 77178
Force AP 18 1354 78532
Monsampietro Morico FM 18 659 79191
Petriolo MC 19 1998 81189
Montemonaco AP 20 604 81793

Municipalities with at least 50000 inhabitants

An earthquake occurred to
53 Km E of Foligno (57155 inhabitants)
56 Km NW of Teramo (54892 inhabitants)
62 Km S of Ancona (100861 inhabitants)
77 Km E of Perugia (166134 inhabitants)
80 Km NE of Terni (111501 inhabitants)
81 Km N of L'Aquila (69753 inhabitants)
89 Km S of Fano (60888 inhabitants)
92 Km NW of Montesilvano (53738 inhabitants)
98 Km SE of Pesaro (94582 inhabitants)
99 Km NW of Pescara (121014 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 2019-04-04
03:51:49		 43.08 13.3308 23 2019-04-04
04:00:53		 Sala Sismica INGV-Roma 67235821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-04-04 03:51:49 ± 0.22
Latitude 43.0800 ± 0.0090
Longitude 13.3308 ± 0.0086
Depth (km) 23 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 67235821

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 998
Semi-minor axis of confidence ellipse (meter) 405
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 21
Circular confidence region, given by single value of horizontal uncertainty (meter) 1000.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 153
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) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.01799
Epicentral distance of station farthest from the epicenter (degree) 0.33365
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 67235821
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-04-04 04:00:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SNTG.HHZ. 2019-04-04T03:52:02.49 0.3 undecidable manual S 302 37.0296 114 0.21 72
IV.CESI.HHZ. 2019-04-04T03:52:02.58 0.3 undecidable manual S 257 35.5422 115 0.67 62
IV.MML1.HNZ. 2019-04-04T03:52:00.64 0.3 undecidable manual S 277 29.3484 121 0.2 73
IV.MNTT.EHZ. 2019-04-04T03:51:59.58 0.3 undecidable manual S 95 21.5673 131 0.83 63
IV.MC2.EHZ. 2019-04-04T03:51:59.07 0.3 undecidable manual S 212 21.9669 130 0.24 73
IV.MMO1.EHZ. 2019-04-04T03:51:58.25 0.3 undecidable manual S 181 20.0688 133 -0.2 75
IV.FDMO.HHZ. 2019-04-04T03:51:58.45 0.3 undecidable manual S 256 20.3685 133 -0.05 78
IV.MF5.EHZ. 2019-04-04T03:51:57.62 0.3 undecidable manual S 134 14.5743 143 0.14 77
IV.CESI.HHZ. 2019-04-04T03:51:56.52 0.3 undecidable manual P 257 35.5422 115 -0.03 76
IV.GUMA.HHZ. 2019-04-04T03:51:56.03 0.3 undecidable manual S 170 1.998 174 -0.19 77
IV.SNTG.HHZ. 2019-04-04T03:51:56.59 0.3 undecidable manual P 302 37.0296 114 -0.18 73
IV.MML1.HNZ. 2019-04-04T03:51:55.58 0.1 undecidable manual P 277 29.3484 121 -0.13 100
IV.FDMO.HHZ. 2019-04-04T03:51:54.37 0.3 undecidable manual P 256 20.3685 133 -0.22 75
IV.MC2.EHZ. 2019-04-04T03:51:54.70 0.3 undecidable manual P 212 21.9669 130 -0.08 76
IV.MNTT.EHZ. 2019-04-04T03:51:54.85 0.3 undecidable manual P 95 21.5673 131 0.12 76
IV.MMO1.EHZ. 2019-04-04T03:51:54.26 0.3 undecidable manual P 181 20.0688 133 -0.3 73
IV.MF5.EHZ. 2019-04-04T03:51:53.94 0.3 undecidable manual P 134 14.5743 143 -0.05 77
IV.PF6.EHZ. 2019-04-04T03:51:53.44 0.3 undecidable manual P 300 12.7761 147 -0.39 73
IV.GUMA.HHZ. 2019-04-04T03:51:52.97 0.3 undecidable manual P 170 1.998 174 -0.3 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SNTG.HHE. ML:1.0 0.00002955 0.14 AML other m 2019-04-04T03:52:02.69
IV.FDMO.HHE. ML:0.6 0.000022160665 0.5408 AML other m 2019-04-04T03:51:58.84
IV.FDMO.HHN. ML:0.6 0.000020752505499999997 0.5376 AML other m 2019-04-04T03:51:59.38
IV.CESI.HHE. ML:0.6 0.0000134621455 0.7008 AML other m 2019-04-04T03:52:03.44
IV.CESI.HHN. ML:0.8 0.000019252095 0.72 AML other m 2019-04-04T03:52:03.09
IV.SNTG.HHN. ML:1.1 0.0000395 0.18 AML other m 2019-04-04T03:52:02.67
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