Earthquake with magnitude of Md 2.2 on date 15-07-1988 and time 19:37:49 (Italy) in region 7 km E Cerreto di Spoleto (PG)

A magnitude Md 2.2 earthquake occured in region: 7 km E Cerreto di Spoleto (PG), on

  • 15-07-1988 17:37:49 (UTC)
  • 15-07-1988 19:37:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7930, 12.9910 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Cerreto di Spoleto PG 7 1075 1075
Cascia PG 8 3217 4292
Norcia PG 8 4957 9249
Poggiodomo PG 10 117 9366
Preci PG 10 724 10090
Vallo di Nera PG 11 364 10454
Sellano PG 12 1079 11533
Sant'Anatolia di Narco PG 14 564 12097
Scheggino PG 16 461 12558
Monteleone di Spoleto PG 16 599 13157
Visso MC 17 1107 14264
Castelsantangelo sul Nera MC 18 281 14545
Campello sul Clitunno PG 18 2442 16987

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km SE of Foligno (57155 inhabitants)
38 Km NE of Terni (111501 inhabitants)
59 Km NW of L'Aquila (69753 inhabitants)
60 Km SE of Perugia (166134 inhabitants)
60 Km W of Teramo (54892 inhabitants)
84 Km NE of Viterbo (67173 inhabitants)
91 Km N of Guidonia Montecelio (88673 inhabitants)
94 Km N of Tivoli (56533 inhabitants)
100 Km W of Montesilvano (53738 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
Bulletin
Rev1000
Md 2.2 1988-07-15
17:37:49
42.793 12.991 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 73539
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-07-15 17:37:49 ± 0.097
Latitude 42.7930 ± 0.0057
Longitude 12.9910 ± 0.0076
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 73539

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 888.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 117
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00324
Epicentral distance of station farthest from the epicenter (degree) 0.00631
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 73539
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:09:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ARV.Z. 1988-07-15T17:38:14.71 10.0 undecidable manual SG 356 0.6993 0.45 0.1
--.MNS.Z. 1988-07-15T17:38:06.93 10.0 undecidable manual SG 209 0.4551 0.36 0.3
--.CM8.Z. 1988-07-15T17:38:05.20 10.0 undecidable manual SG 15 0.4107 0.23 0.6
--.ALP.Z. 1988-07-15T17:38:05.31 10.0 undecidable manual SG 91 0.4218 0.16 0.7
--.ASS.Z. 1988-07-15T17:38:03.16 10.0 undecidable manual SG 317 0.3552 -0.17 0.7
--.ARV.Z. 1988-07-15T17:38:03.57 10.0 undecidable manual PG 356 0.6993 -0.29 0.8
--.MNS.Z. 1988-07-15T17:37:59.14 10.0 undecidable manual PG 209 0.4551 -0.29 1.1
--.CM8.Z. 1988-07-15T17:37:58.37 10.0 undecidable manual PG 15 0.4107 -0.13 1.9
--.ALP.Z. 1988-07-15T17:37:58.40 10.0 undecidable manual PG 91 0.4218 -0.2 1.6
--.ASS.Z. 1988-07-15T17:37:57.59 10.0 undecidable manual PG 317 0.3552 0.04 2.2
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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