Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 01-04-2020 and time 12:56:56 (Italy) in region 2 km W Caldarola (MC)

A magnitude ML 1.0 earthquake occured in region: 2 km W Caldarola (MC), on

  • 01-04-2020 10:56:56 (UTC)
  • 01-04-2020 12:56:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1320, 13.2060 at 7 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
Caldarola MC 2 1823 1823
Belforte del Chienti MC 5 1886 3709
Camporotondo di Fiastrone MC 5 563 4272
Cessapalombo MC 5 512 4784
Serrapetrona MC 5 966 5750
San Ginesio MC 9 3498 9248
Tolentino MC 11 20069 29317
Camerino MC 11 6974 36291
San Severino Marche MC 11 12726 49017
Fiastra MC 11 559 49576
Acquacanina MC 12 121 49697
Pievebovigliana MC 12 866 50563
Colmurano MC 13 1263 51826
Gualdo MC 13 815 52641
Sarnano MC 13 3264 55905
Ripe San Ginesio MC 13 852 56757
Muccia MC 14 915 57672
Fiordimonte MC 14 202 57874
Castelraimondo MC 15 4587 62461
Bolognola MC 15 142 62603
Urbisaglia MC 16 2628 65231
Pieve Torina MC 16 1458 66689
Sant'Angelo in Pontano MC 16 1436 68125
Gagliole MC 16 620 68745
Loro Piceno MC 18 2401 71146
Pioraco MC 19 1134 72280
Pollenza MC 19 6618 78898
Penna San Giovanni MC 20 1108 80006

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km E of Foligno (57155 inhabitants)
60 Km SW of Ancona (100861 inhabitants)
66 Km E of Perugia (166134 inhabitants)
66 Km NW of Teramo (54892 inhabitants)
78 Km NE of Terni (111501 inhabitants)
81 Km S of Fano (60888 inhabitants)
88 Km N of L'Aquila (69753 inhabitants)
90 Km S 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 1.0 2020-04-01
10:56:56		 43.1322 13.2057 7 2020-04-01
11:01:33		 Sala Sismica INGV-Roma 77756011
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-01 10:56:56 ± 0.13
Latitude 43.1322 ± 0.0036
Longitude 13.2057 ± 0.0074
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77756011

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 570
Semi-minor axis of confidence ellipse (meter) 42
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 256
Circular confidence region, given by single value of horizontal uncertainty (meter) 570.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 128
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00989
Epicentral distance of station farthest from the epicenter (degree) 0.25361
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.0
Num. used stations 2
Type of magnitude ML
Reference to an origin 77756011
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-01 11:01:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESI.HHZ. 2020-04-01T10:57:07.00 0.6 undecidable manual S 240 28.1496 104 0.24 46
IV.CING.HNZ. 2020-04-01T10:57:06.41 0.6 undecidable manual S 358 27.0507 105 0.05 48
IV.MMO1.EHZ. 2020-04-01T10:57:06.13 0.6 undecidable manual S 159 27.6501 105 -0.44 44
IV.EL6.EHZ. 2020-04-01T10:57:05.32 0.6 undecidable manual S 339 23.4543 107 0.15 47
IV.CING.HNZ. 2020-04-01T10:57:02.06 0.3 undecidable manual P 358 27.0507 105 -0.2 70
IV.FDMO.HHZ. 2020-04-01T10:57:02.43 0.3 undecidable manual S 222 14.2746 117 0.21 71
IV.CESI.HHZ. 2020-04-01T10:57:02.41 0.3 undecidable manual P 240 28.1496 104 -0.08 72
IV.GUMA.HHE. 2020-04-01T10:57:02.35 0.3 undecidable manual S 126 12.9759 119 0.53 67
IV.EL6.EHZ. 2020-04-01T10:57:01.50 0.1 undecidable manual P 339 23.4543 107 -0.07 96
IV.MMO1.EHZ. 2020-04-01T10:57:01.92 0.1 undecidable manual P 159 27.6501 105 -0.46 88
IV.MDAR.HNN. 2020-04-01T10:57:00.74 0.6 undecidable manual S 323 8.3805 131 0.23 48
IV.CSP1.EHZ. 2020-04-01T10:56:59.52 0.3 undecidable manual S 181 4.4955 148 -0.09 75
IV.GUMA.HHE. 2020-04-01T10:56:59.93 0.1 undecidable manual P 126 12.9759 119 0.29 94
IV.FDMO.HHZ. 2020-04-01T10:56:59.92 0.1 undecidable manual P 222 14.2746 117 0.05 98
IV.PF6.EHN. 2020-04-01T10:56:58.81 0.3 undecidable manual S 305 1.0989 171 -0.39 70
IV.MDAR.HNN. 2020-04-01T10:56:58.97 0.3 undecidable manual P 323 8.3805 131 0.08 74
IV.CSP1.EHZ. 2020-04-01T10:56:58.46 0.1 positive manual P 181 4.4955 148 0.1 99
IV.PF6.EHN. 2020-04-01T10:56:58.04 0.1 undecidable manual P 305 1.0989 171 -0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:1.0 0.0000572 0.42 AML other m 2020-04-01T10:57:13.45
IV.CESI.HHE. ML:1.0 0.0000514 0.42 AML other m 2020-04-01T10:57:14.41
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