Earthquake with magnitude of ML 1.1 on date 27-09-2021 and time 19:24:28 (Italy) in region 3 km NW Caldarola (MC)

A magnitude ML 1.1 earthquake occured in region: 3 km NW Caldarola (MC), on

  • 27-09-2021 17:24:28 (UTC)
  • 27-09-2021 19:24:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.153, 13.203 at 12 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.

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 3 1823 1823
Serrapetrona MC 3 966 2789
Belforte del Chienti MC 3 1886 4675
Camporotondo di Fiastrone MC 6 563 5238
Cessapalombo MC 7 512 5750
San Severino Marche MC 9 12726 18476
Tolentino MC 9 20069 38545
San Ginesio MC 11 3498 42043
Camerino MC 11 6974 49017
Colmurano MC 13 1263 50280
Castelraimondo MC 13 4587 54867
Ripe San Ginesio MC 14 852 55719
Fiastra MC 14 559 56278
Acquacanina MC 14 121 56399
Pievebovigliana MC 14 866 57265
Gualdo MC 15 815 58080
Gagliole MC 15 620 58700
Urbisaglia MC 15 2628 61328
Muccia MC 15 915 62243
Sarnano MC 15 3264 65507
Fiordimonte MC 16 202 65709
Sant'Angelo in Pontano MC 17 1436 67145
Pieve Torina MC 17 1458 68603
Pollenza MC 17 6618 75221
Loro Piceno MC 18 2401 77622
Bolognola MC 18 142 77764
Pioraco MC 18 1134 78898
Matelica MC 19 9981 88879
Treia MC 20 9403 98282

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km E of Foligno (57155 inhabitants)
58 Km SW of Ancona (100861 inhabitants)
66 Km E of Perugia (166134 inhabitants)
68 Km NW of Teramo (54892 inhabitants)
78 Km S of Fano (60888 inhabitants)
80 Km NE of Terni (111501 inhabitants)
87 Km S of Pesaro (94582 inhabitants)
91 Km N of L'Aquila (69753 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.1 2021-09-27
17:24:28
43.1533 13.2028 12 2021-09-27
17:28:46
Sala Sismica INGV-Roma 95954701
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-27 17:24:28 ± 0.11
Latitude 43.1533 ± 0.0036
Longitude 13.2028 ± 0.0074
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95954701

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 591
Semi-minor axis of confidence ellipse (meter) 210
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) 590
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 132
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 30
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.41639
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 15
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 95954701
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-27 17:28:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RNI2.HHZ. 2021-09-27T17:25:01.11 3.0 positive manual Pg 6.37 0
IV.SACS.HHZ. 2021-09-27T17:24:49.93 3.0 undecidable manual P 3.37 0
IV.SSFR.HHZ. 2021-09-27T17:24:44.09 0.6 undecidable manual S 313 0.4164 92 0.37 44
IV.ATCC.EHZ. 2021-09-27T17:24:44.14 0.6 undecidable manual S 275 0.4119 92 0.57 42
IV.ASSB.HHZ. 2021-09-27T17:24:44.10 0.6 undecidable manual S 255 0.4119 92 0.51 43
IV.ARVD.HHZ. 2021-09-27T17:24:43.28 0.6 undecidable manual S 331 0.393 92 0.24 45
IV.NRCA.HHZ. 2021-09-27T17:24:40.34 0.6 undecidable manual S 191 0.3265 93 -0.71 40
IV.TERO.HHZ. 2021-09-27T17:24:40.72 3.0 undecidable manual P 0.27 0
IV.CESI.HHZ. 2021-09-27T17:24:39.41 0.6 undecidable manual S 236 0.2635 94 0.22 47
IV.CRTC.HHZ. 2021-09-27T17:24:39.78 3.0 positive manual P -0.74 0
IV.MF5.EHZ. 2021-09-27T17:24:39.87 0.6 undecidable manual S 131 0.25 95 1.07 34
IV.MC2.EHZ. 2021-09-27T17:24:38.58 0.6 undecidable manual S 182 0.2419 95 0.02 49
IV.ASSB.HHZ. 2021-09-27T17:24:37.64 0.6 undecidable manual P 255 0.4119 92 0.25 45
IV.CING.HHZ. 2021-09-27T17:24:37.60 0.6 undecidable manual S 359 0.2221 96 -0.37 45
IV.SSFR.HHZ. 2021-09-27T17:24:37.76 0.6 positive manual P 313 0.4164 92 0.3 44
IV.ARVD.HHZ. 2021-09-27T17:24:37.18 1.0 negative manual P 331 0.393 92 0.11 23
IV.SNTG.HHZ. 2021-09-27T17:24:37.71 0.6 undecidable manual S 298 0.2167 97 -0.09 48
IV.ATCC.EHZ. 2021-09-27T17:24:37.37 1.0 negative manual P 275 0.4119 92 -0.01 24
IV.MML1.EHZ. 2021-09-27T17:24:36.56 0.6 undecidable manual S 257 0.1736 101 0.02 49
IV.EL6.EHZ. 2021-09-27T17:24:36.81 0.6 undecidable manual S 337 0.1907 99 -0.24 47
IV.NRCA.HHZ. 2021-09-27T17:24:35.64 0.3 positive manual P 191 0.3265 93 -0.28 68
IV.FDMO.HHZ. 2021-09-27T17:24:35.44 0.6 undecidable manual S 216 0.1439 107 -0.26 47
IV.MF5.EHZ. 2021-09-27T17:24:34.88 0.6 positive manual P 131 0.25 95 0.25 46
IV.MC2.EHZ. 2021-09-27T17:24:34.24 0.1 undecidable manual P 182 0.2419 95 -0.25 93
IV.CESI.HHZ. 2021-09-27T17:24:34.84 1.0 negative manual P 236 0.2635 94 -0.01 24
IV.CSP1.EHZ. 2021-09-27T17:24:33.76 0.6 undecidable manual S 179 0.0612 143 0.07 50
IV.SNTG.HHZ. 2021-09-27T17:24:33.83 0.6 positive manual P 298 0.2167 97 -0.22 47
IV.MML1.EHZ. 2021-09-27T17:24:33.22 0.1 positive manual P 257 0.1736 101 -0.1 97
IV.CING.HHZ. 2021-09-27T17:24:33.86 1.0 undecidable manual P 359 0.2221 96 -0.29 23
IV.MDAR.HNZ. 2021-09-27T17:24:33.53 0.3 undecidable manual S 312 0.0585 144 -0.11 74
IV.EL6.EHZ. 2021-09-27T17:24:33.45 1.0 positive manual P 337 0.1907 99 -0.16 24
IV.FDMO.HHZ. 2021-09-27T17:24:32.72 0.1 undecidable manual P 216 0.1439 107 -0.12 97
IV.MDAR.HNZ. 2021-09-27T17:24:31.61 0.3 undecidable manual P 312 0.0585 144 -0.04 75
IV.CSP1.EHZ. 2021-09-27T17:24:31.72 0.1 negative manual P 179 0.0612 143 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSP1.EHE. ML:1.4 0.000358 1.28 AML other m 2021-09-27T17:24:33.25
IV.CSP1.EHN. ML:1.4 0.0002995 1.6 AML other m 2021-09-27T17:24:35.03
IV.MML1.EHN. ML:0.9 5.655E-5 1.24 AML other m 2021-09-27T17:24:37.29
IV.MML1.EHE. ML:0.8 4.725E-5 0.16 AML other m 2021-09-27T17:24:37.35
IV.SNTG.HHN. ML:1.3 0.0001088 0.16 AML other m 2021-09-27T17:24:37.84
IV.SNTG.HHE. ML:1.1 6.855E-5 0.14 AML other m 2021-09-27T17:24:37.88
IV.CING.HHN. ML:0.8 3.86E-5 0.48 AML other m 2021-09-27T17:24:38.45
IV.CING.HHE. ML:0.9 4.255E-5 0.54 AML other m 2021-09-27T17:24:38.82
IV.CESI.HHN. ML:1.2 6.93E-5 0.18 AML other m 2021-09-27T17:24:39.66
IV.CESI.HHE. ML:1 4.725E-5 0.64 AML other m 2021-09-27T17:24:39.55
IV.NRCA.HHN. ML:1.1 4.25E-5 1.08 AML other m 2021-09-27T17:24:42.72
IV.NRCA.HHE. ML:1.1 4.71E-5 0.44 AML other m 2021-09-27T17:24:43.48
IV.SSFR.HHN. ML:1.2 4.695E-5 0.22 AML other m 2021-09-27T17:24:44.89
IV.SSFR.HHE. ML:1.3 5.94E-5 0.24 AML other m 2021-09-27T17:24:45.59
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