Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 07-02-2020 and time 20:50:29 (Italy) in region Gualdo (MC)

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

  • 07-02-2020 19:50:29 (UTC)
  • 07-02-2020 20:50:29 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.0680, 13.3390 at 20 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 0 815 815
Sarnano MC 5 3264 4079
San Ginesio MC 5 3498 7577
Sant'Angelo in Pontano MC 6 1436 9013
Penna San Giovanni MC 7 1108 10121
Cessapalombo MC 8 512 10633
Ripe San Ginesio MC 9 852 11485
Monte San Martino MC 9 765 12250
Camporotondo di Fiastrone MC 9 563 12813
Amandola FM 10 3629 16442
Colmurano MC 11 1263 17705
Smerillo FM 11 365 18070
Falerone FM 12 3337 21407
Caldarola MC 12 1823 23230
Bolognola MC 12 142 23372
Servigliano FM 13 2336 25708
Loro Piceno MC 13 2401 28109
Montappone FM 13 1682 29791
Montefalcone Appennino FM 13 424 30215
Monte Vidon Corrado FM 13 731 30946
Belforte del Chienti MC 14 1886 32832
Comunanza AP 14 3166 35998
Montefortino FM 14 1178 37176
Acquacanina MC 14 121 37297
Santa Vittoria in Matenano FM 14 1330 38627
Massa Fermana FM 15 963 39590
Urbisaglia MC 15 2628 42218
Fiastra MC 15 559 42777
Monteleone di Fermo FM 16 395 43172
Tolentino MC 16 20069 63241
Belmonte Piceno FM 17 646 63887
Montelparo FM 17 778 64665
Force AP 17 1354 66019
Serrapetrona MC 17 966 66985
Mogliano MC 18 4696 71681
Montegiorgio FM 18 6851 78532
Monsampietro Morico FM 18 659 79191
Montemonaco AP 19 604 79795

Municipalities with at least 50000 inhabitants

An earthquake occurred to
53 Km E of Foligno (57155 inhabitants)
54 Km NW of Teramo (54892 inhabitants)
63 Km S of Ancona (100861 inhabitants)
77 Km E of Perugia (166134 inhabitants)
80 Km N of L'Aquila (69753 inhabitants)
80 Km NE of Terni (111501 inhabitants)
90 Km S of Fano (60888 inhabitants)
90 Km NW of Montesilvano (53738 inhabitants)
98 Km NW of Pescara (121014 inhabitants)
100 Km SE of Pesaro (94582 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 2020-02-07
19:50:29		 43.0678 13.3387 20 2020-02-07
20:00:35		 Sala Sismica INGV-Roma 76325971
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-07 19:50:29 ± 0.22
Latitude 43.0678 ± 0.0036
Longitude 13.3387 ± 0.0086
Depth (km) 20 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76325971

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 659
Semi-minor axis of confidence ellipse (meter) 421
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 89
Circular confidence region, given by single value of horizontal uncertainty (meter) 660.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 216
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) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.10072
Epicentral distance of station farthest from the epicenter (degree) 0.31296
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 2
Type of magnitude ML
Reference to an origin 76325971
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-07 20:00:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2020-02-07T19:50:41.88 0.3 undecidable manual S 327 34.743 111 0.15 94
IV.FDMO.HHZ. 2020-02-07T19:50:38.01 0.6 undecidable manual S 260 20.6682 126 -0.4 61
IV.MMO1.EHZ. 2020-02-07T19:50:38.12 0.3 undecidable manual S 183 18.6702 130 0.12 98
IV.MC2.EHZ. 2020-02-07T19:50:38.69 0.6 undecidable manual S 215 21.1677 126 0.17 65
IV.CSP1.EHZ. 2020-02-07T19:50:36.70 0.6 undecidable manual S 284 11.1777 146 0.07 67
IV.EL6.EHZ. 2020-02-07T19:50:36.46 1.0 undecidable manual P 327 34.743 111 -0.12 32
IV.MC2.EHZ. 2020-02-07T19:50:34.84 0.6 undecidable manual P 215 21.1677 126 0.12 65
IV.FDMO.HHZ. 2020-02-07T19:50:34.33 1.0 undecidable manual P 260 20.6682 126 -0.34 31
IV.MMO1.EHZ. 2020-02-07T19:50:34.37 0.6 positive manual P 183 18.6702 130 -0.06 66
IV.CSP1.EHZ. 2020-02-07T19:50:33.56 0.3 positive manual P 284 11.1777 146 -0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.9 0.00003795 0.18 AML other m 2020-02-07T19:50:38.21
IV.FDMO.HHN. ML:0.7 0.00002425 0.24 AML other m 2020-02-07T19:50:38.37
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