Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 26-02-2021 and time 06:31:15 (UTC) in region 3 km W Caldarola (MC)

A magnitude ML 0.8 earthquake occured in region: 3 km W Caldarola (MC), on

  • 26-02-2021 06:31:15 (UTC)
  • 26-02-2021 07:31:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.1420, 13.1840 at 14 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 4 1823 1823
Serrapetrona MC 4 966 2789
Belforte del Chienti MC 5 1886 4675
Camporotondo di Fiastrone MC 7 563 5238
Cessapalombo MC 7 512 5750
Camerino MC 9 6974 12724
San Severino Marche MC 10 12726 25450
Tolentino MC 11 20069 45519
San Ginesio MC 11 3498 49017
Pievebovigliana MC 12 866 49883
Fiastra MC 12 559 50442
Acquacanina MC 12 121 50563
Castelraimondo MC 13 4587 55150
Muccia MC 13 915 56065
Fiordimonte MC 14 202 56267
Colmurano MC 14 1263 57530
Gagliole MC 14 620 58150
Ripe San Ginesio MC 15 852 59002
Gualdo MC 15 815 59817
Sarnano MC 15 3264 63081
Pieve Torina MC 15 1458 64539
Pioraco MC 17 1134 65673
Bolognola MC 17 142 65815
Urbisaglia MC 17 2628 68443
Sant'Angelo in Pontano MC 18 1436 69879
Sefro MC 19 422 70301
Matelica MC 19 9981 80282
Loro Piceno MC 19 2401 82683
Pollenza MC 19 6618 89301

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km E of Foligno (57155 inhabitants)
59 Km SW of Ancona (100861 inhabitants)
65 Km E of Perugia (166134 inhabitants)
68 Km NW of Teramo (54892 inhabitants)
78 Km NE of Terni (111501 inhabitants)
79 Km S of Fano (60888 inhabitants)
88 Km S of Pesaro (94582 inhabitants)
90 Km N of L'Aquila (69753 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 2021-02-26
06:31:15		 43.1422 13.1843 14 2021-02-26
07:37:21		 Sala Sismica INGV-Roma 87493721
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-26 06:31:15 ± 0.09
Latitude 43.1422 ± 0.0045
Longitude 13.1843 ± 0.0062
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 87493721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 500
Semi-minor axis of confidence ellipse (meter) 277
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 246
Circular confidence region, given by single value of horizontal uncertainty (meter) 500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 118
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00809
Epicentral distance of station farthest from the epicenter (degree) 0.49732
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 87493721
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-26 07:37:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESI.HHZ. 2021-02-26T06:31:25.35 0.6 undecidable manual S 236 27.2505 102 0.32 46
IV.MF5.EHZ. 2021-02-26T06:31:25.95 0.6 undecidable manual S 127 28.1496 101 0.7 41
IV.MC2.EHZ. 2021-02-26T06:31:24.58 0.6 undecidable manual S 179 25.5522 103 0 49
IV.GAVE.EHZ. 2021-02-26T06:31:24.61 0.3 undecidable manual P 205 55.2003 94 -0.53 63
IV.EL6.EHZ. 2021-02-26T06:31:23.92 0.6 undecidable manual S 342 21.867 107 0.31 47
IV.GUMA.HHZ. 2021-02-26T06:31:22.33 0.6 undecidable manual S 126 15.0738 120 0.37 47
IV.MML1.HNZ. 2021-02-26T06:31:22.88 0.6 undecidable manual S 260 17.4714 115 0.35 46
IV.FDMO.HHZ. 2021-02-26T06:31:21.51 0.6 undecidable manual S 214 14.0748 123 -0.23 49
IV.NRCA.HHZ. 2021-02-26T06:31:21.73 0.3 undecidable manual P 189 34.743 98 -0.27 69
IV.MF5.EHZ. 2021-02-26T06:31:21.04 0.3 undecidable manual P 127 28.1496 101 0.04 74
IV.MMO1.EHZ. 2021-02-26T06:31:21.07 0.3 undecidable manual P 157 29.3484 100 -0.11 72
IV.CESI.HHZ. 2021-02-26T06:31:20.77 0.3 undecidable manual P 236 27.2505 102 -0.1 73
IV.MC2.EHZ. 2021-02-26T06:31:20.76 0.3 undecidable manual P 179 25.5522 103 0.14 72
IV.MDAR.HNZ. 2021-02-26T06:31:20.48 0.6 undecidable manual S 329 6.5934 149 0.15 50
IV.CSP1.EHZ. 2021-02-26T06:31:20.20 0.6 undecidable manual S 163 5.7942 152 -0.03 51
IV.EL6.EHZ. 2021-02-26T06:31:20.04 0.3 undecidable manual P 342 21.867 107 -0.02 73
IV.CING.HHE. 2021-02-26T06:31:20.45 0.3 undecidable manual P 2 25.9518 103 -0.22 70
IV.PF6.EHZ. 2021-02-26T06:31:19.70 0.3 undecidable manual S 120 0.8991 175 -0.17 75
IV.GUMA.HHZ. 2021-02-26T06:31:19.11 0.3 undecidable manual P 126 15.0738 120 0.01 75
IV.FDMO.HHZ. 2021-02-26T06:31:19.13 0.3 undecidable manual P 214 14.0748 123 0.16 73
IV.MML1.HNZ. 2021-02-26T06:31:19.44 0.3 undecidable manual P 260 17.4714 115 0.01 75
IV.CSP1.EHZ. 2021-02-26T06:31:18.07 0.3 undecidable manual P 163 5.7942 152 -0.04 76
IV.MDAR.HNZ. 2021-02-26T06:31:18.18 0.3 undecidable manual P 329 6.5934 149 0.02 77
IV.PF6.EHZ. 2021-02-26T06:31:17.75 0.1 undecidable manual P 120 0.8991 175 -0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:0.9 0.0000315 1.06 AML other m 2021-02-26T06:31:29.02
IV.NRCA.HHE. ML:0.8 0.000025799999999999997 1.08 AML other m 2021-02-26T06:31:29.17
IV.FDMO.HHE. ML:0.8 0.000049865359999999996 0.1216 AML other m 2021-02-26T06:31:21.88
IV.FDMO.HHN. ML:0.8 0.000052574204999999996 0.1408 AML other m 2021-02-26T06:31:21.77
IV.EL6.EHE. ML:0.8 0.000040334834499999996 0.16 AML other m 2021-02-26T06:31:24.83
IV.EL6.EHN. ML:0.9 0.000043303855 0.2208 AML other m 2021-02-26T06:31:25.36
IV.CESI.HHE. ML:0.5 0.000015856795 0.0992 AML other m 2021-02-26T06:31:26.49
IV.CESI.HHN. ML:0.6 0.000021474718999999998 0.1824 AML other m 2021-02-26T06:31:25.41
IV.MF5.EHE. ML:0.9 0.000039719354999999995 0.1792 AML other m 2021-02-26T06:31:26.10
IV.MF5.EHN. ML:0.9 0.00004208256 0.16 AML other m 2021-02-26T06:31:26.13
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